Phase2: Invoicecomputation/AdminpricingUI/Ainvoicemgnt

.env.example

@@ -17,3 +17,7 @@ LITELLM_MASTER_KEY=
 
 # Portal Database (CloudNativePG)
 DATABASE_URL=postgresql://portal:${PORTAL_DB_PASSWORD}@portal-db-rw.pieced-system.svc:5432/portal
+
+# Threema relay (central pieced-threema-gateway)
+THREEMA_RELAY_URL=http://pieced-threema-gateway.threema-gateway.svc:8080
+THREEMA_RELAY_ADMIN_TOKEN=__from_openbao__

README.md

@@ -1,100 +1,54 @@
-# PieCed Portal
+# PieCed Portal — Billing Phase 1 patch (suspend-via-admin fix)
 
-Customer self-service portal for the PieCed IT multi-tenant OpenClaw platform.
+Single-file fix on top of the Phase 1 v2 drop.
 
-## Stack
+## What it fixes
 
-| Layer | Choice |
-|-------|--------|
-| Framework | Next.js 15 LTS (App Router, standalone output, Turbopack) |
-| Auth | NextAuth v5 + ZITADEL OIDC (CODE flow) |
-| Tenant mgmt | Direct K8s API → `PiecedTenant` CRs (Option A) |
-| Usage data | LiteLLM `/team/info` + `/global/spend/logs` |
-| i18n | next-intl 4.x (en/de) |
-| Styling | Tailwind CSS 4 |
-| Deployment | Container in `pieced-system`, exposed at `app.pieced.ch` |
+The admin panel's suspend/resume button hits
+`/api/admin/tenants/[name]/suspend` (a different route from the
+customer-side `/api/tenants/[name]/suspend`). The v2 drop only
+hooked the customer route — admin suspends were going to K8s
+without producing a row in `tenant_suspension_events`.
 
-## Setup
+This patch adds the same `recordSuspensionEvent` hook to the
+admin route. No other code paths affected; no schema changes.
 
-### 1. ZITADEL Application
-
-In ZITADEL console (`auth.pieced.ch`), project "OpenClaw Platform":
-
-1. Create Application → **PieCed Portal** → Web → Authentication Method: **CODE**
-2. Redirect URI: `https://app.pieced.ch/api/auth/callback/zitadel`
-3. Post-logout URI: `https://app.pieced.ch/login`
-4. Note Client ID and Client Secret
-
-### 2. OpenBao Secrets
-
-```bash
-bao kv put pieced/portal/oidc \
-  client_id="<from step 1>" \
-  client_secret="<from step 1>" \
-  nextauth_secret="$(openssl rand -base64 32)"
-```
-
-### 3. Build & Push
-
-```bash
-docker build -t registry.c5ai.ch/pieced/pieced-portal:0.1.0 .
-docker push registry.c5ai.ch/pieced/pieced-portal:0.1.0
-```
-
-Update image tag in `pieced-gitops/apps/portal/deployment.yaml`, push, ArgoCD syncs.
-
-### 4. DNS
-
-Ensure `app.pieced.ch` A record → MetalLB ingress IP (or ExternalDNS handles it).
-
-## Local Development
-
-```bash
-cp .env.example .env.local
-# Fill in values — K8s client uses ~/.kube/config locally
-npm install
-npm run dev
-```
-
-## Project Structure
+## Files
 
 ```
-src/
-├── app/
-│   ├── api/
-│   │   ├── auth/[...nextauth]/route.ts   # NextAuth handler
-│   │   ├── tenants/route.ts              # Tenant CRUD (K8s API)
-│   │   └── usage/route.ts                # Usage stub
-│   ├── [locale]/
-│   │   ├── layout.tsx                    # Locale layout + NavShell
-│   │   ├── page.tsx                      # Redirect → /dashboard
-│   │   ├── login/page.tsx                # ZITADEL sign-in
-│   │   ├── dashboard/page.tsx            # Customer dashboard
-│   │   └── admin/page.tsx                # Platform admin tenant list
-│   ├── layout.tsx                        # Root layout
-│   └── globals.css                       # Tailwind 4 theme
-├── components/
-│   ├── layout/nav-shell.tsx              # Header + navigation
-│   └── ui/                               # Reusable UI components
-├── i18n/
-│   ├── routing.ts                        # next-intl 4.x routing config
-│   ├── navigation.ts                     # Localized Link, redirect, etc.
-│   └── request.ts                        # Server-side i18n config
-├── lib/
-│   ├── auth.ts                           # NextAuth v5 + ZITADEL config
-│   ├── k8s.ts                            # K8s client for PiecedTenant CRs
-│   ├── litellm.ts                        # LiteLLM API client
-│   └── session.ts                        # Session helpers
-├── messages/
-│   ├── en.json
-│   └── de.json
-└── types/index.ts                        # Shared TypeScript types
+src/app/api/admin/tenants/[name]/suspend/route.ts    MODIFIED
 ```
 
-## Session Roadmap
+## Deploy
 
-- **6.1** ← This session: scaffold, auth, basic pages
-- **6.2**: Instance management, package config, usage display
-- **6.3**: Onboarding flow (create ZITADEL org → PiecedTenant CR)
-- **6.4**: Workspace editor (SOUL.md, AGENTS.md, TOOLS.md)
-- **6.5**: Admin panel (tenant lifecycle, billing overview)
+Extract over your `pieced-portal/` tree, rebuild, redeploy as
+usual. After the new image is running, verify:
+
+1. Suspend any test tenant from the `/admin` panel.
+2. Check the events table:
+
+   ```bash
+   kubectl -n pieced-system exec -it portal-db-1 -- psql -U postgres -d portal -c \
+     "SELECT * FROM tenant_suspension_events ORDER BY id DESC LIMIT 5;"
+   ```
+
+   Expect a fresh `suspended` row for the tenant you just toggled.
+
+3. Resume → expect a `resumed` row.
+
+## Why I missed this
+
+Both routes share the same shape (PATCH/POST that sets
+`spec.suspend`), but they differ on:
+
+- URL path (`/api/admin/tenants/...` vs `/api/tenants/...`)
+- Method (POST vs PATCH)
+- Authorization (platform-only vs owner+platform)
+- Caller (admin panel vs customer cancel button)
+
+When I grepped for the suspend hook target I matched on the
+customer endpoint and didn't audit cross-cutting admin
+duplicates. I've since checked every site that calls
+`patchTenantSpec`, `createTenant`, or `deleteTenant` — this was
+the only missed billing-relevant one. Other `patchTenantSpec`
+sites are confirmed non-billing (openClawImage, channelUsers).

deploy/patch-i18n-threema.mjs

@@ -2,11 +2,20 @@
 /**
  * Run: node deploy/patch-i18n-threema.mjs
  *
- * Idempotently injects:
+ * Idempotently injects (or overwrites) customer-facing Threema texts:
  *   - packages.threema.{description, instructions, disclaimer}
  *   - channelUsers.threemaIdHelp
+ *   - channelUsers.threemaSetup.{title, step1, step2, step3, qrAlt}
  *
- * into all four message files. Run from the pieced-portal repo root.
+ * Replaces the earlier version of this script entirely. The new texts:
+ *   - Drop "Gateway account" jargon (customers don't know it)
+ *   - Drop asterisk-prefix references (customers don't see / type it)
+ *   - Tell the customer to add their OWN Threema ID, not someone else's
+ *   - Disclose that Threema charges per message via the gateway
+ *   - Walk through the QR-scan + add-your-ID flow explicitly
+ *
+ * Re-running is safe — keys are set, not merged, so this is the
+ * source of truth for the values it touches.
  */
 import { readFileSync, writeFileSync } from "fs";
 
@@ -14,50 +23,90 @@ const i18n = {
   en: {
     pkg: {
       description:
-        "Threema messaging routed through the PieCed central gateway. No Gateway account of your own required — PieCed mints credentials when you enable this package.",
+        "Send and receive messages through Threema. Each inbound and outbound message uses the shared PieCed messaging service and incurs a per-message charge from Threema — a third-party cost, separate from your PieCed subscription.",
       instructions:
-        "1. Enable this package — PieCed provisions a central-gateway slot for your tenant.\n2. Add the Threema IDs you want to talk to under Authorized Users → threema.\n3. Each Threema ID can only belong to one PieCed tenant; if a registration fails, that ID is already in use elsewhere.",
+        "1. Enable this package.\n2. Open Threema on your phone, scan the QR code shown under Authorized Users → threema, and accept the contact.\n3. Add your own Threema ID under Authorized Users → threema so the assistant recognises your messages.\n4. Send a message from Threema to start chatting with the assistant.",
       disclaimer:
-        "Messages are end-to-end encrypted at the Threema boundary by the PieCed central gateway. Inbound and outbound message counts are logged per tenant for billing.",
+        "Messages between Threema and PieCed are end-to-end encrypted up to PieCed's messaging service, where they are decrypted to be routed to your assistant. Each message sent or received is counted toward Threema's per-message billing — see your plan for current rates.",
     },
     channelHelp:
-      "Enter the 8-character Threema ID (uppercase letters and digits, no asterisk) of the person you want to talk to. The * prefix is for Gateway accounts, which PieCed manages on your behalf.",
+      "Enter your own Threema ID — the 8 characters shown in your Threema app under Settings → My Threema ID. Once added, you'll be able to chat with the assistant directly from Threema.",
+    setup: {
+      title: "Add the assistant to your Threema",
+      step1: "Open Threema on your phone.",
+      step2: "Tap the scan icon and scan this QR code to add the assistant as a contact.",
+      step3: "Then add your own Threema ID below.",
+      qrAlt: "QR code to add {gateway} as a Threema contact",
+      bannerTitle: "Set up Threema",
+      bannerBody: "Open Threema on your phone and scan our QR code to add the assistant as a contact. Then add your own Threema ID below.",
+      bannerButton: "Show QR code",
+    },
   },
   de: {
     pkg: {
       description:
-        "Threema-Messaging über das zentrale PieCed-Gateway. Sie benötigen kein eigenes Gateway-Konto — PieCed stellt die Anmeldedaten beim Aktivieren dieses Pakets bereit.",
+        "Senden und empfangen Sie Nachrichten über Threema. Jede eingehende und ausgehende Nachricht läuft über den gemeinsamen PieCed-Messaging-Dienst und verursacht eine Gebühr pro Nachricht bei Threema — eine Drittanbieter-Kostenposition, unabhängig von Ihrem PieCed-Abonnement.",
       instructions:
-        "1. Aktivieren Sie dieses Paket — PieCed richtet einen zentralen Gateway-Slot für Ihren Tenant ein.\n2. Fügen Sie die Threema-IDs, mit denen Sie kommunizieren wollen, unter Autorisierte Benutzer → threema hinzu.\n3. Jede Threema-ID kann nur einem PieCed-Tenant zugeordnet sein; wenn die Registrierung fehlschlägt, ist die ID bereits anderweitig vergeben.",
+        "1. Aktivieren Sie dieses Paket.\n2. Öffnen Sie Threema auf Ihrem Telefon, scannen Sie den QR-Code unter Autorisierte Benutzer → threema und akzeptieren Sie den Kontakt.\n3. Tragen Sie Ihre eigene Threema-ID unter Autorisierte Benutzer → threema ein, damit der Assistent Ihre Nachrichten erkennt.\n4. Schreiben Sie eine Nachricht aus Threema, um das Gespräch zu beginnen.",
       disclaimer:
-        "Die Nachrichten werden am Threema-Übergang vom zentralen PieCed-Gateway Ende-zu-Ende verschlüsselt. Eingehende und ausgehende Nachrichten werden pro Tenant für die Abrechnung gezählt.",
+        "Nachrichten zwischen Threema und PieCed werden Ende-zu-Ende verschlüsselt bis zum PieCed-Messaging-Dienst, wo sie entschlüsselt und an Ihren Assistenten weitergeleitet werden. Jede gesendete oder empfangene Nachricht wird gemäss Threema-Tarif pro Nachricht abgerechnet — die aktuellen Preise finden Sie in Ihrem Plan.",
     },
     channelHelp:
-      "Geben Sie die 8-stellige Threema-ID (Großbuchstaben und Ziffern, ohne Sternchen) der Person ein, mit der Sie kommunizieren möchten. Das *-Präfix gehört zu Gateway-Konten, die PieCed für Sie verwaltet.",
+      "Geben Sie Ihre eigene Threema-ID ein — die 8 Zeichen, die in Ihrer Threema-App unter Einstellungen → Meine Threema-ID angezeigt werden. Anschliessend können Sie direkt aus Threema mit dem Assistenten chatten.",
+    setup: {
+      title: "Assistenten zu Threema hinzufügen",
+      step1: "Öffnen Sie Threema auf Ihrem Telefon.",
+      step2: "Tippen Sie auf das Scan-Symbol und scannen Sie diesen QR-Code, um den Assistenten als Kontakt hinzuzufügen.",
+      step3: "Fügen Sie anschliessend unten Ihre eigene Threema-ID hinzu.",
+      qrAlt: "QR-Code, um {gateway} als Threema-Kontakt hinzuzufügen",
+      bannerTitle: "Threema einrichten",
+      bannerBody: "Öffnen Sie Threema auf Ihrem Telefon und scannen Sie unseren QR-Code, um den Assistenten als Kontakt hinzuzufügen. Geben Sie anschliessend unten Ihre eigene Threema-ID ein.",
+      bannerButton: "QR-Code anzeigen",
+    },
   },
   fr: {
     pkg: {
       description:
-        "Messagerie Threema via la passerelle centrale PieCed. Aucun compte Gateway personnel requis — PieCed génère les identifiants à l'activation du package.",
+        "Envoyez et recevez des messages via Threema. Chaque message entrant ou sortant transite par le service de messagerie PieCed partagé et entraîne des frais par message facturés par Threema — un coût tiers, distinct de votre abonnement PieCed.",
       instructions:
-        "1. Activez ce package — PieCed approvisionne un slot de passerelle centrale pour votre tenant.\n2. Ajoutez les identifiants Threema avec lesquels vous souhaitez échanger sous Utilisateurs autorisés → threema.\n3. Chaque identifiant Threema ne peut appartenir qu'à un seul tenant PieCed ; si l'enregistrement échoue, l'identifiant est déjà utilisé ailleurs.",
+        "1. Activez ce package.\n2. Ouvrez Threema sur votre téléphone, scannez le QR code affiché dans Utilisateurs autorisés → threema, puis acceptez le contact.\n3. Ajoutez votre propre identifiant Threema sous Utilisateurs autorisés → threema afin que l'assistant reconnaisse vos messages.\n4. Envoyez un message depuis Threema pour commencer la conversation.",
       disclaimer:
-        "Les messages sont chiffrés de bout en bout côté Threema par la passerelle centrale PieCed. Les volumes entrant et sortant sont consignés par tenant pour la facturation.",
+        "Les messages entre Threema et PieCed sont chiffrés de bout en bout jusqu'au service de messagerie PieCed, où ils sont déchiffrés pour être acheminés vers votre assistant. Chaque message envoyé ou reçu est facturé par Threema selon son tarif par message — consultez votre plan pour les tarifs en vigueur.",
     },
     channelHelp:
-      "Saisissez l'identifiant Threema à 8 caractères (lettres majuscules et chiffres, sans astérisque) de la personne avec qui vous souhaitez communiquer. Le préfixe * concerne les comptes Gateway, gérés par PieCed pour vous.",
+      "Saisissez votre propre identifiant Threema — les 8 caractères affichés dans votre application Threema sous Réglages → Mon identifiant Threema. Une fois ajouté, vous pourrez discuter directement avec l'assistant depuis Threema.",
+    setup: {
+      title: "Ajouter l'assistant à Threema",
+      step1: "Ouvrez Threema sur votre téléphone.",
+      step2: "Appuyez sur l'icône de scan et scannez ce QR code pour ajouter l'assistant comme contact.",
+      step3: "Puis ajoutez votre propre identifiant Threema ci-dessous.",
+      qrAlt: "QR code pour ajouter {gateway} comme contact Threema",
+      bannerTitle: "Configurer Threema",
+      bannerBody: "Ouvrez Threema sur votre téléphone et scannez notre QR code pour ajouter l'assistant comme contact. Saisissez ensuite votre propre identifiant Threema ci-dessous.",
+      bannerButton: "Afficher le QR code",
+    },
   },
   it: {
     pkg: {
       description:
-        "Messaggistica Threema instradata tramite il gateway centrale PieCed. Non è necessario un account Gateway proprio — PieCed crea le credenziali quando attivi il pacchetto.",
+        "Invia e ricevi messaggi tramite Threema. Ogni messaggio in entrata e in uscita passa attraverso il servizio di messaggistica condiviso di PieCed e comporta un addebito per messaggio da parte di Threema — un costo di terzi, separato dall'abbonamento PieCed.",
       instructions:
-        "1. Attiva questo pacchetto — PieCed predispone uno slot del gateway centrale per il tuo tenant.\n2. Aggiungi gli ID Threema con cui vuoi comunicare sotto Utenti autorizzati → threema.\n3. Ogni ID Threema può appartenere a un solo tenant PieCed; se la registrazione fallisce, l'ID è già usato altrove.",
+        "1. Attiva questo pacchetto.\n2. Apri Threema sul tuo telefono, scansiona il QR code mostrato in Utenti autorizzati → threema e accetta il contatto.\n3. Aggiungi il tuo ID Threema sotto Utenti autorizzati → threema affinché l'assistente riconosca i tuoi messaggi.\n4. Invia un messaggio da Threema per iniziare la conversazione.",
       disclaimer:
-        "I messaggi sono cifrati end-to-end al confine con Threema dal gateway centrale PieCed. I conteggi di messaggi in ingresso e uscita vengono registrati per tenant ai fini della fatturazione.",
+        "I messaggi tra Threema e PieCed sono cifrati end-to-end fino al servizio di messaggistica PieCed, dove vengono decifrati per essere inoltrati al tuo assistente. Ogni messaggio inviato o ricevuto viene addebitato da Threema secondo la sua tariffa per messaggio — consulta il tuo piano per i prezzi attuali.",
     },
     channelHelp:
-      "Inserisci l'ID Threema di 8 caratteri (lettere maiuscole e cifre, senza asterisco) della persona con cui vuoi comunicare. Il prefisso * appartiene agli account Gateway, gestiti da PieCed per te.",
+      "Inserisci il tuo ID Threema — gli 8 caratteri mostrati nella tua app Threema sotto Impostazioni → Il mio ID Threema. Una volta aggiunto, potrai conversare con l'assistente direttamente da Threema.",
+    setup: {
+      title: "Aggiungi l'assistente a Threema",
+      step1: "Apri Threema sul tuo telefono.",
+      step2: "Tocca l'icona di scansione e scansiona questo QR code per aggiungere l'assistente ai contatti.",
+      step3: "Quindi aggiungi il tuo ID Threema qui sotto.",
+      qrAlt: "QR code per aggiungere {gateway} come contatto Threema",
+      bannerTitle: "Configura Threema",
+      bannerBody: "Apri Threema sul tuo telefono e scansiona il nostro QR code per aggiungere l'assistente ai contatti. Inserisci poi il tuo ID Threema qui sotto.",
+      bannerButton: "Mostra QR code",
+    },
   },
 };
 
@@ -74,7 +123,8 @@ for (const [lang, entries] of Object.entries(i18n)) {
 
   json.channelUsers = json.channelUsers ?? {};
   json.channelUsers.threemaIdHelp = entries.channelHelp;
+  json.channelUsers.threemaSetup = entries.setup;
 
   writeFileSync(path, JSON.stringify(json, null, 2) + "\n");
-  console.log(`Patched ${path} — added packages.threema and channelUsers.threemaIdHelp`);
+  console.log(`Patched ${path}`);
 }

next.config.mjs

@@ -5,7 +5,11 @@ const withNextIntl = createNextIntlPlugin();
 /** @type {import('next').NextConfig} */
 const nextConfig = {
   output: "standalone",
-  serverExternalPackages: ["pg"],
+  // pg uses native node bindings, @react-pdf/renderer pulls in
+  // fontkit / pdfkit which don't play nicely with webpack bundling.
+  // Both are pure server-side concerns; mark external so Next ships
+  // them as Node modules rather than bundling.
+  serverExternalPackages: ["pg", "@react-pdf/renderer"],
 };
 
 export default withNextIntl(nextConfig);

package-lock.json

@@ -9,6 +9,7 @@
       "version": "0.1.0",
       "dependencies": {
         "@kubernetes/client-node": "^1.4.0",
+        "@react-pdf/renderer": "^4.4.0",
         "@types/nodemailer": "^8.0.0",
         "@types/pg": "^8.20.0",
         "next": "^15.5.15",
@@ -73,6 +74,15 @@
         }
       }
     },
+    "node_modules/@babel/runtime": {
+      "version": "7.29.2",
+      "resolved": "https://registry.npmjs.org/@babel/runtime/-/runtime-7.29.2.tgz",
+      "integrity": "sha512-JiDShH45zKHWyGe4ZNVRrCjBz8Nh9TMmZG1kh4QTK8hCBTWBi8Da+i7s1fJw7/lYpM4ccepSNfqzZ/QvABBi5g==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=6.9.0"
+      }
+    },
     "node_modules/@emnapi/core": {
       "version": "1.9.2",
       "resolved": "https://registry.npmjs.org/@emnapi/core/-/core-1.9.2.tgz",
@@ -1089,6 +1099,30 @@
         "node": ">= 10"
       }
     },
+    "node_modules/@noble/ciphers": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/@noble/ciphers/-/ciphers-1.3.0.tgz",
+      "integrity": "sha512-2I0gnIVPtfnMw9ee9h1dJG7tp81+8Ob3OJb3Mv37rx5L40/b0i7djjCVvGOVqc9AEIQyvyu1i6ypKdFw8R8gQw==",
+      "license": "MIT",
+      "engines": {
+        "node": "^14.21.3 || >=16"
+      },
+      "funding": {
+        "url": "https://paulmillr.com/funding/"
+      }
+    },
+    "node_modules/@noble/hashes": {
+      "version": "1.8.0",
+      "resolved": "https://registry.npmjs.org/@noble/hashes/-/hashes-1.8.0.tgz",
+      "integrity": "sha512-jCs9ldd7NwzpgXDIf6P3+NrHh9/sD6CQdxHyjQI+h/6rDNo88ypBxxz45UDuZHz9r3tNz7N/VInSVoVdtXEI4A==",
+      "license": "MIT",
+      "engines": {
+        "node": "^14.21.3 || >=16"
+      },
+      "funding": {
+        "url": "https://paulmillr.com/funding/"
+      }
+    },
     "node_modules/@nodelib/fs.scandir": {
       "version": "2.1.5",
       "resolved": "https://registry.npmjs.org/@nodelib/fs.scandir/-/fs.scandir-2.1.5.tgz",
@@ -1453,6 +1487,183 @@
         "url": "https://github.com/sponsors/jonschlinkert"
       }
     },
+    "node_modules/@react-pdf/fns": {
+      "version": "3.1.3",
+      "resolved": "https://registry.npmjs.org/@react-pdf/fns/-/fns-3.1.3.tgz",
+      "integrity": "sha512-0I7pApDr1/RLAKbizuLy/IHTEa93LSPy/bEwYniboC3Xqnp6Od8xFJKbKEzGw2wh/5zKFFwl00g4t9RwgIMc3w==",
+      "license": "MIT"
+    },
+    "node_modules/@react-pdf/font": {
+      "version": "4.0.8",
+      "resolved": "https://registry.npmjs.org/@react-pdf/font/-/font-4.0.8.tgz",
+      "integrity": "sha512-deNd+emtZAJho1IlzKL9bRoLAGv/6oXOIKO2oZfs4RuXUrK1onLHbJO7e2YoVLPFP/sQxisRTnzdJFtd35iKwA==",
+      "license": "MIT",
+      "dependencies": {
+        "@react-pdf/pdfkit": "^5.1.1",
+        "@react-pdf/types": "^2.11.1",
+        "fontkit": "^2.0.2",
+        "is-url": "^1.2.4"
+      }
+    },
+    "node_modules/@react-pdf/image": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/@react-pdf/image/-/image-3.1.0.tgz",
+      "integrity": "sha512-ks7Ry8v711r8NvKWSELehj0BXBNPRihSnWsM09nDD8Ur175zbWBCK217LLwQMKDNYDVpkZaipdoJPom1LGaE9g==",
+      "license": "MIT",
+      "dependencies": {
+        "@react-pdf/svg": "^1.1.0",
+        "jay-peg": "^1.1.1",
+        "png-js": "^2.0.0"
+      }
+    },
+    "node_modules/@react-pdf/layout": {
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+      "resolved": "https://registry.npmjs.org/@react-pdf/layout/-/layout-4.6.1.tgz",
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       "resolved": "https://registry.npmjs.org/jiti/-/jiti-2.6.1.tgz",
@@ -5005,11 +5384,16 @@
         "url": "https://github.com/sponsors/panva"
       }
     },
+    "node_modules/js-md5": {
+      "version": "0.8.3",
+      "resolved": "https://registry.npmjs.org/js-md5/-/js-md5-0.8.3.tgz",
+      "integrity": "sha512-qR0HB5uP6wCuRMrWPTrkMaev7MJZwJuuw4fnwAzRgP4J4/F8RwtodOKpGp4XpqsLBFzzgqIO42efFAyz2Et6KQ==",
+      "license": "MIT"
+    },
     "node_modules/js-tokens": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-4.0.0.tgz",
       "integrity": "sha512-RdJUflcE3cUzKiMqQgsCu06FPu9UdIJO0beYbPhHN4k6apgJtifcoCtT9bcxOpYBtpD2kCM6Sbzg4CausW/PKQ==",
-      "dev": true,
       "license": "MIT"
     },
     "node_modules/js-yaml": {
@@ -5406,6 +5790,25 @@
         "url": "https://opencollective.com/parcel"
       }
     },
+    "node_modules/linebreak": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/linebreak/-/linebreak-1.1.0.tgz",
+      "integrity": "sha512-MHp03UImeVhB7XZtjd0E4n6+3xr5Dq/9xI/5FptGk5FrbDR3zagPa2DS6U8ks/3HjbKWG9Q1M2ufOzxV2qLYSQ==",
+      "license": "MIT",
+      "dependencies": {
+        "base64-js": "0.0.8",
+        "unicode-trie": "^2.0.0"
+      }
+    },
+    "node_modules/linebreak/node_modules/base64-js": {
+      "version": "0.0.8",
+      "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-0.0.8.tgz",
+      "integrity": "sha512-3XSA2cR/h/73EzlXXdU6YNycmYI7+kicTxks4eJg2g39biHR84slg2+des+p7iHYhbRg/udIS4TD53WabcOUkw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
     "node_modules/locate-path": {
       "version": "6.0.0",
       "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-6.0.0.tgz",
@@ -5433,7 +5836,6 @@
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-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "js-tokens": "^3.0.0 || ^4.0.0"
@@ -5461,6 +5863,12 @@
         "node": ">= 0.4"
       }
     },
+    "node_modules/media-engine": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/media-engine/-/media-engine-1.0.3.tgz",
+      "integrity": "sha512-aa5tG6sDoK+k70B9iEX1NeyfT8ObCKhNDs6lJVpwF6r8vhUfuKMslIcirq6HIUYuuUYLefcEQOn9bSBOvawtwg==",
+      "license": "MIT"
+    },
     "node_modules/merge2": {
       "version": "1.4.1",
       "resolved": "https://registry.npmjs.org/merge2/-/merge2-1.4.1.tgz",
@@ -5844,6 +6252,15 @@
         "node": ">=6.0.0"
       }
     },
+    "node_modules/normalize-svg-path": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/normalize-svg-path/-/normalize-svg-path-1.1.0.tgz",
+      "integrity": "sha512-r9KHKG2UUeB5LoTouwDzBy2VxXlHsiM6fyLQvnJa0S5hrhzqElH/CH7TUGhT1fVvIYBIKf3OpY4YJ4CK+iaqHg==",
+      "license": "MIT",
+      "dependencies": {
+        "svg-arc-to-cubic-bezier": "^3.0.0"
+      }
+    },
     "node_modules/oauth4webapi": {
       "version": "3.8.5",
       "resolved": "https://registry.npmjs.org/oauth4webapi/-/oauth4webapi-3.8.5.tgz",
@@ -5857,7 +6274,6 @@
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-      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=0.10.0"
@@ -6066,6 +6482,12 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/pako": {
+      "version": "1.0.11",
+      "resolved": "https://registry.npmjs.org/pako/-/pako-1.0.11.tgz",
+      "integrity": "sha512-4hLB8Py4zZce5s4yd9XzopqwVv/yGNhV1Bl8NTmCq1763HeK2+EwVTv+leGeL13Dnh2wfbqowVPXCIO0z4taYw==",
+      "license": "(MIT AND Zlib)"
+    },
     "node_modules/parent-module": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/parent-module/-/parent-module-1.0.1.tgz",
@@ -6079,6 +6501,12 @@
         "node": ">=6"
       }
     },
+    "node_modules/parse-svg-path": {
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/parse-svg-path/-/parse-svg-path-0.1.2.tgz",
+      "integrity": "sha512-JyPSBnkTJ0AI8GGJLfMXvKq42cj5c006fnLz6fXy6zfoVjJizi8BNTpu8on8ziI1cKy9d9DGNuY17Ce7wuejpQ==",
+      "license": "MIT"
+    },
     "node_modules/path-exists": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-4.0.0.tgz",
@@ -6214,6 +6642,14 @@
         "url": "https://github.com/sponsors/jonschlinkert"
       }
     },
+    "node_modules/png-js": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/png-js/-/png-js-2.0.0.tgz",
+      "integrity": "sha512-GdzJuUMc6ZSpxFJWVxtOH1bzYHym+TOnveqUjb+VJIbZWbZzyiRGFiKhbiielfpYbgMlhHVhsJ0FTazfuRFkMA==",
+      "dependencies": {
+        "fflate": "^0.8.2"
+      }
+    },
     "node_modules/po-parser": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/po-parser/-/po-parser-2.1.1.tgz",
@@ -6259,6 +6695,12 @@
         "node": "^10 || ^12 || >=14"
       }
     },
+    "node_modules/postcss-value-parser": {
+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/postcss-value-parser/-/postcss-value-parser-4.2.0.tgz",
+      "integrity": "sha512-1NNCs6uurfkVbeXG4S8JFT9t19m45ICnif8zWLd5oPSZ50QnwMfK+H3jv408d4jw/7Bttv5axS5IiHoLaVNHeQ==",
+      "license": "MIT"
+    },
     "node_modules/postgres-array": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/postgres-array/-/postgres-array-2.0.0.tgz",
@@ -6331,7 +6773,6 @@
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       "resolved": "https://registry.npmjs.org/prop-types/-/prop-types-15.8.1.tgz",
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-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "loose-envify": "^1.4.0",
@@ -6359,6 +6800,15 @@
         "node": ">=6"
       }
     },
+    "node_modules/queue": {
+      "version": "6.0.2",
+      "resolved": "https://registry.npmjs.org/queue/-/queue-6.0.2.tgz",
+      "integrity": "sha512-iHZWu+q3IdFZFX36ro/lKBkSvfkztY5Y7HMiPlOUjhupPcG2JMfst2KKEpu5XndviX/3UhFbRngUPNKtgvtZiA==",
+      "license": "MIT",
+      "dependencies": {
+        "inherits": "~2.0.3"
+      }
+    },
     "node_modules/queue-microtask": {
       "version": "1.2.3",
       "resolved": "https://registry.npmjs.org/queue-microtask/-/queue-microtask-1.2.3.tgz",
@@ -6405,7 +6855,6 @@
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       "resolved": "https://registry.npmjs.org/react-is/-/react-is-16.13.1.tgz",
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-      "dev": true,
       "license": "MIT"
     },
     "node_modules/reflect.getprototypeof": {
@@ -6452,6 +6901,15 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/require-from-string": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/require-from-string/-/require-from-string-2.0.2.tgz",
+      "integrity": "sha512-Xf0nWe6RseziFMu+Ap9biiUbmplq6S9/p+7w7YXP/JBHhrUDDUhwa+vANyubuqfZWTveU//DYVGsDG7RKL/vEw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/resolve": {
       "version": "2.0.0-next.6",
       "resolved": "https://registry.npmjs.org/resolve/-/resolve-2.0.0-next.6.tgz",
@@ -6496,6 +6954,12 @@
         "url": "https://github.com/privatenumber/resolve-pkg-maps?sponsor=1"
       }
     },
+    "node_modules/restructure": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/restructure/-/restructure-3.0.2.tgz",
+      "integrity": "sha512-gSfoiOEA0VPE6Tukkrr7I0RBdE0s7H1eFCDBk05l1KIQT1UIKNc5JZy6jdyW6eYH3aR3g5b3PuL77rq0hvwtAw==",
+      "license": "MIT"
+    },
     "node_modules/reusify": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/reusify/-/reusify-1.1.0.tgz",
@@ -6557,6 +7021,26 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/safe-buffer": {
+      "version": "5.2.1",
+      "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
+      "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
+      ],
+      "license": "MIT"
+    },
     "node_modules/safe-push-apply": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/safe-push-apply/-/safe-push-apply-1.0.0.tgz",
@@ -6901,6 +7385,15 @@
         "text-decoder": "^1.1.0"
       }
     },
+    "node_modules/string_decoder": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.3.0.tgz",
+      "integrity": "sha512-hkRX8U1WjJFd8LsDJ2yQ/wWWxaopEsABU1XfkM8A+j0+85JAGppt16cr1Whg6KIbb4okU6Mql6BOj+uup/wKeA==",
+      "license": "MIT",
+      "dependencies": {
+        "safe-buffer": "~5.2.0"
+      }
+    },
     "node_modules/string.prototype.includes": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/string.prototype.includes/-/string.prototype.includes-2.0.1.tgz",
@@ -7086,6 +7579,12 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/svg-arc-to-cubic-bezier": {
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/svg-arc-to-cubic-bezier/-/svg-arc-to-cubic-bezier-3.2.0.tgz",
+      "integrity": "sha512-djbJ/vZKZO+gPoSDThGNpKDO+o+bAeA4XQKovvkNCqnIS2t+S4qnLAGQhyyrulhCFRl1WWzAp0wUDV8PpTVU3g==",
+      "license": "ISC"
+    },
     "node_modules/tailwindcss": {
       "version": "4.2.2",
       "resolved": "https://registry.npmjs.org/tailwindcss/-/tailwindcss-4.2.2.tgz",
@@ -7151,6 +7650,12 @@
         "b4a": "^1.6.4"
       }
     },
+    "node_modules/tiny-inflate": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/tiny-inflate/-/tiny-inflate-1.0.3.tgz",
+      "integrity": "sha512-pkY1fj1cKHb2seWDy0B16HeWyczlJA9/WW3u3c4z/NiWDsO3DOU5D7nhTLE9CF0yXv/QZFY7sEJmj24dK+Rrqw==",
+      "license": "MIT"
+    },
     "node_modules/tinyglobby": {
       "version": "0.2.16",
       "resolved": "https://registry.npmjs.org/tinyglobby/-/tinyglobby-0.2.16.tgz",
@@ -7380,6 +7885,32 @@
       "integrity": "sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ==",
       "license": "MIT"
     },
+    "node_modules/unicode-properties": {
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/unicode-properties/-/unicode-properties-1.4.1.tgz",
+      "integrity": "sha512-CLjCCLQ6UuMxWnbIylkisbRj31qxHPAurvena/0iwSVbQ2G1VY5/HjV0IRabOEbDHlzZlRdCrD4NhB0JtU40Pg==",
+      "license": "MIT",
+      "dependencies": {
+        "base64-js": "^1.3.0",
+        "unicode-trie": "^2.0.0"
+      }
+    },
+    "node_modules/unicode-trie": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/unicode-trie/-/unicode-trie-2.0.0.tgz",
+      "integrity": "sha512-x7bc76x0bm4prf1VLg79uhAzKw8DVboClSN5VxJuQ+LKDOVEW9CdH+VY7SP+vX7xCYQqzzgQpFqz15zeLvAtZQ==",
+      "license": "MIT",
+      "dependencies": {
+        "pako": "^0.2.5",
+        "tiny-inflate": "^1.0.0"
+      }
+    },
+    "node_modules/unicode-trie/node_modules/pako": {
+      "version": "0.2.9",
+      "resolved": "https://registry.npmjs.org/pako/-/pako-0.2.9.tgz",
+      "integrity": "sha512-NUcwaKxUxWrZLpDG+z/xZaCgQITkA/Dv4V/T6bw7VON6l1Xz/VnrBqrYjZQ12TamKHzITTfOEIYUj48y2KXImA==",
+      "license": "MIT"
+    },
     "node_modules/unrs-resolver": {
       "version": "1.11.1",
       "resolved": "https://registry.npmjs.org/unrs-resolver/-/unrs-resolver-1.11.1.tgz",
@@ -7446,6 +7977,26 @@
         "react": "^17.0.0 || ^18.0.0 || >=19.0.0-rc <19.0.0 || ^19.0.0"
       }
     },
+    "node_modules/util-deprecate": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
+      "integrity": "sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw==",
+      "license": "MIT"
+    },
+    "node_modules/vite-compatible-readable-stream": {
+      "version": "3.6.1",
+      "resolved": "https://registry.npmjs.org/vite-compatible-readable-stream/-/vite-compatible-readable-stream-3.6.1.tgz",
+      "integrity": "sha512-t20zYkrSf868+j/p31cRIGN28Phrjm3nRSLR2fyc2tiWi4cZGVdv68yNlwnIINTkMTmPoMiSlc0OadaO7DXZaQ==",
+      "license": "MIT",
+      "dependencies": {
+        "inherits": "^2.0.3",
+        "string_decoder": "^1.1.1",
+        "util-deprecate": "^1.0.1"
+      },
+      "engines": {
+        "node": ">= 6"
+      }
+    },
     "node_modules/webidl-conversions": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-3.0.1.tgz",
@@ -7626,6 +8177,12 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/yoga-layout": {
+      "version": "3.2.1",
+      "resolved": "https://registry.npmjs.org/yoga-layout/-/yoga-layout-3.2.1.tgz",
+      "integrity": "sha512-0LPOt3AxKqMdFBZA3HBAt/t/8vIKq7VaQYbuA8WxCgung+p9TVyKRYdpvCb80HcdTN2NkbIKbhNwKUfm3tQywQ==",
+      "license": "MIT"
+    },
     "node_modules/zod": {
       "version": "3.25.76",
       "resolved": "https://registry.npmjs.org/zod/-/zod-3.25.76.tgz",

package.json

@@ -11,6 +11,7 @@
   },
   "dependencies": {
     "@kubernetes/client-node": "^1.4.0",
+    "@react-pdf/renderer": "^4.4.0",
     "@types/nodemailer": "^8.0.0",
     "@types/pg": "^8.20.0",
     "next": "^15.5.15",

src/app/[locale]/admin/billing/generate/page.tsx

@@ -0,0 +1,71 @@
+import { redirect } from "next/navigation";
+import { getTranslations } from "next-intl/server";
+import { getSessionUser } from "@/lib/session";
+import { listTenants } from "@/lib/k8s";
+import { getOrgBilling } from "@/lib/db";
+import { BackLink } from "@/components/ui/back-link";
+import { GenerateForm } from "@/components/admin/billing/generate-form";
+
+/**
+ * /admin/billing/generate — testing tool to compute & commit an
+ * invoice for a given (org, period).
+ *
+ * Workflow:
+ *   1. Admin picks org + year/month + locale (default auto-detected
+ *      from country).
+ *   2. "Preview" runs computeInvoiceDraft (dryRun) — shows lines,
+ *      totals, warnings.
+ *   3. "Commit" persists + renders the PDF.
+ *
+ * The org dropdown is hydrated server-side here so the page loads
+ * with the list pre-populated. Per-org billing status (address
+ * present / open balance) is fetched on demand from /api/admin/
+ * billing/orgs since it can change as admin edits.
+ */
+export default async function AdminBillingGeneratePage() {
+  const user = await getSessionUser();
+  if (!user) redirect("/login");
+  if (!user.isPlatform) redirect("/dashboard");
+  const t = await getTranslations("adminBilling");
+
+  // Build initial org list from tenant labels.
+  const tenants = await listTenants();
+  const orgMap = new Map<string, string[]>();
+  for (const t of tenants) {
+    const oid = t.metadata.labels?.["pieced.ch/zitadel-org-id"];
+    if (!oid) continue;
+    if (!orgMap.has(oid)) orgMap.set(oid, []);
+    orgMap.get(oid)!.push(t.metadata.name);
+  }
+  // Hydrate company name + country in parallel.
+  const orgList = await Promise.all(
+    [...orgMap.entries()].map(async ([orgId, tenantNames]) => {
+      const billing = await getOrgBilling(orgId).catch(() => null);
+      return {
+        zitadelOrgId: orgId,
+        tenantNames,
+        companyName: billing?.companyName ?? null,
+        country: billing?.country ?? null,
+        hasBillingAddress: !!billing,
+      };
+    })
+  );
+  orgList.sort((a, b) =>
+    (a.companyName ?? a.zitadelOrgId).localeCompare(
+      b.companyName ?? b.zitadelOrgId
+    )
+  );
+
+  return (
+    <main className="max-w-4xl mx-auto px-6 py-8">
+      <BackLink href="/admin/billing" label={t("backToBilling")} />
+      <div className="mb-8 animate-in">
+        <h1 className="font-display text-2xl font-semibold accent-rule">
+          {t("generateTitle")}
+        </h1>
+        <p className="text-sm text-text-secondary mt-3">{t("generatePageDesc")}</p>
+      </div>
+      <GenerateForm orgs={orgList} />
+    </main>
+  );
+}

src/app/[locale]/admin/billing/invoices/[id]/page.tsx

@@ -0,0 +1,35 @@
+import { notFound, redirect } from "next/navigation";
+import { getTranslations } from "next-intl/server";
+import { getSessionUser } from "@/lib/session";
+import { getInvoiceDetail } from "@/lib/db";
+import { BackLink } from "@/components/ui/back-link";
+import { InvoiceDetailView } from "@/components/admin/billing/invoice-detail-view";
+
+/**
+ * /admin/billing/invoices/[id] — full detail of one invoice.
+ *
+ * Server-renders the static body (header, lines, totals, billing
+ * snapshot); the action bar (mark-paid, delete, PDF download) is
+ * a client component for the interactive bits.
+ */
+export default async function AdminInvoiceDetailPage({
+  params,
+}: {
+  params: Promise<{ id: string }>;
+}) {
+  const user = await getSessionUser();
+  if (!user) redirect("/login");
+  if (!user.isPlatform) redirect("/dashboard");
+  const t = await getTranslations("adminBilling");
+
+  const { id } = await params;
+  const detail = await getInvoiceDetail(id);
+  if (!detail) notFound();
+
+  return (
+    <main className="max-w-4xl mx-auto px-6 py-8">
+      <BackLink href="/admin/billing/invoices" label={t("backToInvoices")} />
+      <InvoiceDetailView detail={detail} />
+    </main>
+  );
+}

src/app/[locale]/admin/billing/invoices/page.tsx

@@ -0,0 +1,39 @@
+import { redirect } from "next/navigation";
+import { getTranslations } from "next-intl/server";
+import { getSessionUser } from "@/lib/session";
+import { listInvoices, syncOverdueInvoices } from "@/lib/db";
+import { BackLink } from "@/components/ui/back-link";
+import { InvoicesTable } from "@/components/admin/billing/invoices-table";
+
+/**
+ * /admin/billing/invoices — list of all issued invoices, filterable
+ * by status and month. Click a row to drill into detail.
+ *
+ * Server-renders the initial table with no filters applied (showing
+ * the most recent 200). Client filters trigger a fetch with query
+ * params and re-render in place.
+ */
+export default async function AdminInvoicesListPage() {
+  const user = await getSessionUser();
+  if (!user) redirect("/login");
+  if (!user.isPlatform) redirect("/dashboard");
+  const t = await getTranslations("adminBilling");
+
+  await syncOverdueInvoices().catch((e) =>
+    console.error("syncOverdueInvoices failed:", e)
+  );
+  const invoices = await listInvoices({ limit: 200 });
+
+  return (
+    <main className="max-w-5xl mx-auto px-6 py-8">
+      <BackLink href="/admin/billing" label={t("backToBilling")} />
+      <div className="mb-8 animate-in">
+        <h1 className="font-display text-2xl font-semibold accent-rule">
+          {t("invoicesTitle")}
+        </h1>
+        <p className="text-sm text-text-secondary mt-3">{t("invoicesPageDesc")}</p>
+      </div>
+      <InvoicesTable initialInvoices={invoices} />
+    </main>
+  );
+}

src/app/[locale]/admin/billing/page.tsx

@@ -0,0 +1,128 @@
+import Link from "next/link";
+import { redirect } from "next/navigation";
+import { getTranslations } from "next-intl/server";
+import { getSessionUser } from "@/lib/session";
+import { getOrgOpenBalances, syncOverdueInvoices } from "@/lib/db";
+import { Card } from "@/components/ui/card";
+
+/**
+ * /admin/billing — landing page with sub-section links and a
+ * quick overview of orgs in arrears.
+ *
+ * Sub-pages:
+ *   - /admin/billing/pricing   — platform + skill prices
+ *   - /admin/billing/generate  — manual invoice generator (testing)
+ *   - /admin/billing/invoices  — invoice list/detail
+ *
+ * The Phase 2 customer-side /billing landing page is added in
+ * Phase 3.
+ */
+export default async function AdminBillingPage() {
+  const user = await getSessionUser();
+  if (!user) redirect("/login");
+  if (!user.isPlatform) redirect("/dashboard");
+  const t = await getTranslations("adminBilling");
+
+  // Sweep open invoices past due → 'overdue' so the counters below
+  // reflect reality without needing a cron.
+  await syncOverdueInvoices().catch((e) =>
+    console.error("syncOverdueInvoices failed:", e)
+  );
+  const balances = await getOrgOpenBalances().catch(() => []);
+  const totalOpen = balances.reduce((acc, b) => acc + b.totalOpenChf, 0);
+  const totalOverdue = balances.reduce((acc, b) => acc + b.overdueCount, 0);
+
+  return (
+    <main className="max-w-5xl mx-auto px-6 py-8">
+      <div className="mb-8 animate-in">
+        <h1 className="font-display text-2xl font-semibold accent-rule">
+          {t("title")}
+        </h1>
+        <p className="text-sm text-text-secondary mt-3">{t("subtitle")}</p>
+      </div>
+
+      {/* Stats strip */}
+      <div className="grid grid-cols-3 gap-4 mb-8 animate-in animate-in-delay-1">
+        <Card>
+          <div className="text-xs text-text-muted">{t("totalOpenBalance")}</div>
+          <div className="text-2xl font-semibold mt-1">
+            CHF {totalOpen.toFixed(2)}
+          </div>
+        </Card>
+        <Card>
+          <div className="text-xs text-text-muted">{t("orgsWithBalance")}</div>
+          <div className="text-2xl font-semibold mt-1">{balances.length}</div>
+        </Card>
+        <Card>
+          <div className="text-xs text-text-muted">{t("overdueInvoices")}</div>
+          <div className="text-2xl font-semibold mt-1">
+            {totalOverdue > 0 ? (
+              <span className="text-error">{totalOverdue}</span>
+            ) : (
+              totalOverdue
+            )}
+          </div>
+        </Card>
+      </div>
+
+      {/* Sub-tool cards */}
+      <div className="grid grid-cols-3 gap-4 mb-8 animate-in animate-in-delay-2">
+        <Link href="/admin/billing/pricing">
+          <Card interactive>
+            <div className="font-semibold mb-1">{t("pricingTitle")}</div>
+            <div className="text-sm text-text-muted">{t("pricingDesc")}</div>
+          </Card>
+        </Link>
+        <Link href="/admin/billing/generate">
+          <Card interactive>
+            <div className="font-semibold mb-1">{t("generateTitle")}</div>
+            <div className="text-sm text-text-muted">{t("generateDesc")}</div>
+          </Card>
+        </Link>
+        <Link href="/admin/billing/invoices">
+          <Card interactive>
+            <div className="font-semibold mb-1">{t("invoicesTitle")}</div>
+            <div className="text-sm text-text-muted">{t("invoicesDesc")}</div>
+          </Card>
+        </Link>
+      </div>
+
+      {/* Orgs with open balance */}
+      {balances.length > 0 && (
+        <div className="animate-in animate-in-delay-3">
+          <h2 className="text-lg font-semibold mb-3">{t("balancesTitle")}</h2>
+          <Card>
+            <table className="w-full text-sm">
+              <thead className="text-xs text-text-muted text-left">
+                <tr>
+                  <th className="pb-2">{t("orgIdCol")}</th>
+                  <th className="pb-2 text-right">{t("openCountCol")}</th>
+                  <th className="pb-2 text-right">{t("overdueCountCol")}</th>
+                  <th className="pb-2 text-right">{t("totalOpenCol")}</th>
+                </tr>
+              </thead>
+              <tbody>
+                {balances.map((b) => (
+                  <tr key={b.zitadelOrgId} className="border-t border-border">
+                    <td className="py-2 font-mono text-xs">{b.zitadelOrgId}</td>
+                    <td className="py-2 text-right">{b.openCount}</td>
+                    <td className="py-2 text-right">
+                      {b.overdueCount > 0 ? (
+                        <span className="text-error">{b.overdueCount}</span>
+                      ) : (
+                        <span className="text-text-muted">0</span>
+                      )}
+                    </td>
+                    <td className="py-2 text-right">
+                      CHF {b.totalOpenChf.toFixed(2)}
+                    </td>
+                  </tr>
+                ))}
+              </tbody>
+            </table>
+          </Card>
+        </div>
+      )}
+    </main>
+  );
+}

src/app/[locale]/admin/billing/pricing/page.tsx

@@ -0,0 +1,55 @@
+import { redirect } from "next/navigation";
+import { getTranslations } from "next-intl/server";
+import { getSessionUser } from "@/lib/session";
+import { getPlatformPricing, listSkillPricing } from "@/lib/db";
+import { PACKAGE_CATALOG } from "@/lib/packages";
+import { BackLink } from "@/components/ui/back-link";
+import { PricingEditor } from "@/components/admin/billing/pricing-editor";
+
+/**
+ * /admin/billing/pricing — edit platform-wide pricing config
+ * (monthly fee, setup fee, Threema per-message, VAT rate for
+ * CH/LI) and per-skill daily prices.
+ *
+ * Single-row platform_pricing semantics: one global pricing
+ * config applies to every tenant. No per-tenant overrides in
+ * v1.
+ */
+export default async function AdminBillingPricingPage() {
+  const user = await getSessionUser();
+  if (!user) redirect("/login");
+  if (!user.isPlatform) redirect("/dashboard");
+  const t = await getTranslations("adminBilling");
+
+  const [pricing, skillPricing] = await Promise.all([
+    getPlatformPricing(),
+    listSkillPricing(),
+  ]);
+
+  // Surface every package in the catalog so admin can price any of
+  // them — UI defaults the picker to skill-kind entries but doesn't
+  // hard-block other kinds (a future scenario where a non-skill
+  // package gets a per-day price shouldn't need a code change).
+  const catalog = Object.values(PACKAGE_CATALOG).map((p) => ({
+    id: p.id,
+    name: p.name,
+    category: p.category,
+  }));
+
+  return (
+    <main className="max-w-4xl mx-auto px-6 py-8">
+      <BackLink href="/admin/billing" label={t("backToBilling")} />
+      <div className="mb-8 animate-in">
+        <h1 className="font-display text-2xl font-semibold accent-rule">
+          {t("pricingTitle")}
+        </h1>
+        <p className="text-sm text-text-secondary mt-3">{t("pricingPageDesc")}</p>
+      </div>
+      <PricingEditor
+        initialPricing={pricing}
+        initialSkillPricing={skillPricing}
+        catalog={catalog}
+      />
+    </main>
+  );
+}

src/app/[locale]/admin/page.tsx

@@ -32,12 +32,20 @@ export default async function AdminPage() {
         {/* Sub-tools: links to other admin pages. Plain links rather
             than nav-shell entries — these are platform-team utilities,
             not main navigation. */}
-        <a
-          href="/admin/openclaw"
-          className="text-sm px-4 py-2 rounded-lg border border-border text-text-secondary hover:text-text-primary hover:border-text-secondary transition-colors"
-        >
-          {t("openclawTool")}
-        </a>
+        <div className="flex items-center gap-2">
+          <a
+            href="/admin/billing"
+            className="text-sm px-4 py-2 rounded-lg border border-border text-text-secondary hover:text-text-primary hover:border-text-secondary transition-colors"
+          >
+            {t("billingTool")}
+          </a>
+          <a
+            href="/admin/openclaw"
+            className="text-sm px-4 py-2 rounded-lg border border-border text-text-secondary hover:text-text-primary hover:border-text-secondary transition-colors"
+          >
+            {t("openclawTool")}
+          </a>
+        </div>
       </div>
 
       <div className="animate-in animate-in-delay-1">

src/app/api/admin/billing/backfill/route.ts

@@ -0,0 +1,70 @@
+import { NextResponse } from "next/server";
+import { requirePlatformRole } from "@/lib/session";
+import { listTenants } from "@/lib/k8s";
+import { backfillTenantBillingLifecycle } from "@/lib/db";
+import { safeError } from "@/lib/errors";
+
+/**
+ * POST /api/admin/billing/backfill
+ *
+ * One-off bootstrap that reads every live PiecedTenant CR and
+ * mirrors it into the Phase 1 billing tables:
+ *   - tenant_billing_lifecycle.created_at ← CR's creationTimestamp
+ *   - tenant_skill_events: one 'enabled' event per package in
+ *     spec.packages, anchored at the CR's creationTimestamp
+ *   - tenant_suspension_events: one 'suspended' event if the CR is
+ *     currently suspended (anchored at status.suspendedAt)
+ *
+ * Idempotent — re-running is safe. The helper only inserts rows
+ * for tenants that have no lifecycle row / no events yet; running
+ * twice produces zero additional rows.
+ *
+ * Authorization: platform role only. The body of the request is
+ * ignored.
+ *
+ * Response: counts of rows inserted, mostly for sanity-checking
+ * (expect non-zero on first run, zero on subsequent runs).
+ *
+ * Phase 2 will surface this behind an admin UI button.
+ */
+export async function POST() {
+  try {
+    await requirePlatformRole();
+  } catch {
+    return NextResponse.json({ error: "Forbidden" }, { status: 403 });
+  }
+
+  try {
+    const tenants = await listTenants();
+    const result = await backfillTenantBillingLifecycle(
+      tenants.map((t) => ({
+        name: t.metadata.name,
+        // Tenants without the org label exist as a pre-Slice-3
+        // artifact; we still record them but with 'unknown' as the
+        // org id, which surfaces them in admin reports for manual
+        // labelling. Per-org billing computation skips rows with
+        // org id = 'unknown'.
+        zitadelOrgId:
+          t.metadata.labels?.["pieced.ch/zitadel-org-id"] ?? "unknown",
+        createdAt: t.metadata.creationTimestamp
+          ? new Date(t.metadata.creationTimestamp)
+          : new Date(),
+        packages: t.spec.packages ?? [],
+        suspendedAt: t.status?.suspendedAt
+          ? new Date(t.status.suspendedAt)
+          : null,
+      }))
+    );
+    return NextResponse.json({
+      message: "Backfill complete.",
+      tenantsExamined: tenants.length,
+      ...result,
+    });
+  } catch (e: any) {
+    console.error("Backfill failed:", e);
+    return NextResponse.json(
+      { error: safeError(e, "Backfill failed") },
+      { status: 500 }
+    );
+  }
+}

src/app/api/admin/billing/generate/route.ts

@@ -0,0 +1,66 @@
+import { NextResponse } from "next/server";
+import { z } from "zod";
+import { requirePlatformRole } from "@/lib/session";
+import { generateInvoice } from "@/lib/billing";
+import { safeError } from "@/lib/errors";
+
+/**
+ * POST /api/admin/billing/generate
+ *
+ * Compute (and optionally commit) an invoice for an (org, year,
+ * month). Platform-only — this is the testing/admin tool.
+ *
+ * Body:
+ *   {
+ *     zitadelOrgId: string,
+ *     year: number (e.g. 2026),
+ *     month: number (1-12),
+ *     locale?: 'de' | 'en' | 'fr' | 'it',  // default: from country
+ *     dryRun?: boolean                      // default: false
+ *   }
+ *
+ * Response on success:
+ *   {
+ *     draft: InvoiceDraft,           // line breakdown + warnings
+ *     invoice: Invoice | null,       // null when dryRun=true
+ *   }
+ *
+ * If an invoice for that (org, period) already exists, returns
+ * 409 with a clear message. Use the delete endpoint first to
+ * regenerate.
+ */
+
+const bodySchema = z.object({
+  zitadelOrgId: z.string().min(1),
+  year: z.number().int().min(2020).max(2100),
+  month: z.number().int().min(1).max(12),
+  locale: z.enum(["de", "en", "fr", "it"]).optional(),
+  dryRun: z.boolean().optional().default(false),
+});
+
+export async function POST(request: Request) {
+  try {
+    await requirePlatformRole();
+  } catch {
+    return NextResponse.json({ error: "Forbidden" }, { status: 403 });
+  }
+  const body = await request.json().catch(() => ({}));
+  const parsed = bodySchema.safeParse(body);
+  if (!parsed.success) {
+    return NextResponse.json(
+      { error: "Invalid request", details: parsed.error.flatten() },
+      { status: 400 }
+    );
+  }
+  try {
+    const result = await generateInvoice(parsed.data);
+    return NextResponse.json(result);
+  } catch (e: any) {
+    console.error("Invoice generation failed:", e);
+    const msg = safeError(e, "Generation failed");
+    // Specific 409 for the "already exists" case so the UI can
+    // show a "delete first" link.
+    const status = /already exists/i.test(msg) ? 409 : 500;
+    return NextResponse.json({ error: msg }, { status });
+  }
+}

src/app/api/admin/billing/invoices/[id]/mark-paid/route.ts

@@ -0,0 +1,81 @@
+import { NextResponse } from "next/server";
+import { z } from "zod";
+import { requirePlatformRole, getSessionUser } from "@/lib/session";
+import { markInvoicePaid } from "@/lib/db";
+import { safeError } from "@/lib/errors";
+
+/**
+ * POST /api/admin/billing/invoices/[id]/mark-paid
+ *
+ * Manually mark an open/overdue invoice as paid. Used for the
+ * "pay by invoice" flow where the customer transfers money to
+ * the bank account printed on the PDF and the admin reconciles
+ * by hand.
+ *
+ * Body (all optional):
+ *   {
+ *     paidAt?: ISO timestamp,        // defaults to now
+ *     note?: string                  // free-form, stored in paid_method_detail
+ *   }
+ *
+ * paid_by is set to the admin user's id automatically.
+ * Idempotent: trying to mark an already-paid invoice returns 409.
+ *
+ * Phase 4 will introduce a parallel auto-paid path triggered by
+ * Stripe webhooks; for Phase 2 this is the only way to flip the
+ * status.
+ */
+
+const bodySchema = z.object({
+  paidAt: z.string().datetime().optional(),
+  note: z.string().max(500).optional(),
+});
+
+export async function POST(
+  request: Request,
+  { params }: { params: Promise<{ id: string }> }
+) {
+  let user;
+  try {
+    await requirePlatformRole();
+    user = await getSessionUser();
+  } catch {
+    return NextResponse.json({ error: "Forbidden" }, { status: 403 });
+  }
+  if (!user) {
+    return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
+  }
+  const { id } = await params;
+  const body = await request.json().catch(() => ({}));
+  const parsed = bodySchema.safeParse(body);
+  if (!parsed.success) {
+    return NextResponse.json(
+      { error: "Invalid request", details: parsed.error.flatten() },
+      { status: 400 }
+    );
+  }
+  try {
+    const detail = parsed.data.note
+      ? `${user.id}: ${parsed.data.note}`
+      : user.id;
+    const invoice = await markInvoicePaid(id, {
+      paidBy: "manual",
+      paidMethodDetail: detail,
+      paidAt: parsed.data.paidAt ? new Date(parsed.data.paidAt) : undefined,
+    });
+    if (!invoice) {
+      // Either not found or status not in {open, overdue}.
+      return NextResponse.json(
+        { error: "Invoice not found, or already paid/void." },
+        { status: 409 }
+      );
+    }
+    return NextResponse.json(invoice);
+  } catch (e) {
+    console.error("Failed to mark invoice paid:", e);
+    return NextResponse.json(
+      { error: safeError(e, "Mark-paid failed") },
+      { status: 500 }
+    );
+  }
+}

src/app/api/admin/billing/invoices/[id]/pdf/route.ts

@@ -0,0 +1,48 @@
+import { NextResponse } from "next/server";
+import { requirePlatformRole } from "@/lib/session";
+import { getInvoicePdf } from "@/lib/db";
+
+/**
+ * GET /api/admin/billing/invoices/[id]/pdf
+ *
+ * Streams the stored PDF bytes for an invoice. The bytea column is
+ * read once and returned as an octet stream; no on-the-fly
+ * re-rendering — PDFs are immutable once issued.
+ *
+ * Phase 3 will add a parallel customer-facing route at
+ * /api/billing/invoices/[id]/pdf with org-scoped authorization.
+ */
+export async function GET(
+  _request: Request,
+  { params }: { params: Promise<{ id: string }> }
+) {
+  try {
+    await requirePlatformRole();
+  } catch {
+    return new NextResponse("Forbidden", { status: 403 });
+  }
+  const { id } = await params;
+  const pdf = await getInvoicePdf(id);
+  if (!pdf) {
+    return new NextResponse("Not found", { status: 404 });
+  }
+  // Web `Response`'s BodyInit accepts BufferSource, which IS satisfied
+  // by a Uint8Array. But the pg-returned Buffer types as
+  // `Uint8Array<ArrayBufferLike>` (the @types/node 22+ generic form),
+  // and lib.dom's BufferSource only accepts `Uint8Array<ArrayBuffer>` —
+  // the narrower concrete form. The variance kills assignability,
+  // even though Buffer extends Uint8Array at runtime.
+  //
+  // `Uint8Array.from(buf)` allocates a fresh typed array; the result
+  // is `Uint8Array<ArrayBuffer>` (concrete generic), which BodyInit
+  // accepts. Copy cost is trivial at PDF sizes.
+  const body = Uint8Array.from(pdf.data);
+  return new NextResponse(body, {
+    status: 200,
+    headers: {
+      "Content-Type": "application/pdf",
+      "Content-Disposition": `inline; filename="${pdf.filename}"`,
+      "Cache-Control": "private, max-age=0, must-revalidate",
+    },
+  });
+}

src/app/api/admin/billing/invoices/[id]/route.ts

@@ -0,0 +1,55 @@
+import { NextResponse } from "next/server";
+import { requirePlatformRole } from "@/lib/session";
+import { deleteInvoice, getInvoiceDetail } from "@/lib/db";
+import { safeError } from "@/lib/errors";
+
+/**
+ * GET /api/admin/billing/invoices/[id]
+ * Detail view: invoice + lines.
+ *
+ * DELETE /api/admin/billing/invoices/[id]
+ * Hard delete (testing tool). Invoice number is consumed — gaps
+ * in the sequence are intentional and documented. Reminders
+ * (and their PDFs) cascade-delete via the FK.
+ */
+export async function GET(
+  _request: Request,
+  { params }: { params: Promise<{ id: string }> }
+) {
+  try {
+    await requirePlatformRole();
+  } catch {
+    return NextResponse.json({ error: "Forbidden" }, { status: 403 });
+  }
+  const { id } = await params;
+  const detail = await getInvoiceDetail(id);
+  if (!detail) {
+    return NextResponse.json({ error: "Not found" }, { status: 404 });
+  }
+  return NextResponse.json(detail);
+}
+
+export async function DELETE(
+  _request: Request,
+  { params }: { params: Promise<{ id: string }> }
+) {
+  try {
+    await requirePlatformRole();
+  } catch {
+    return NextResponse.json({ error: "Forbidden" }, { status: 403 });
+  }
+  const { id } = await params;
+  try {
+    const ok = await deleteInvoice(id);
+    if (!ok) {
+      return NextResponse.json({ error: "Not found" }, { status: 404 });
+    }
+    return NextResponse.json({ message: "Deleted." });
+  } catch (e) {
+    console.error("Failed to delete invoice:", e);
+    return NextResponse.json(
+      { error: safeError(e, "Delete failed") },
+      { status: 500 }
+    );
+  }
+}

src/app/api/admin/billing/invoices/route.ts

@@ -0,0 +1,44 @@
+import { NextResponse } from "next/server";
+import { requirePlatformRole } from "@/lib/session";
+import { listInvoices, syncOverdueInvoices } from "@/lib/db";
+import type { InvoiceStatus } from "@/types";
+
+/**
+ * GET /api/admin/billing/invoices
+ *
+ * List invoices for admin. Optional filters:
+ *   ?status=open|paid|overdue|void|uncollectible
+ *   ?orgId=...
+ *   ?month=YYYY-MM
+ *   ?limit=200
+ *
+ * Refreshes overdue status on each call (cheap UPDATE), so the
+ * admin list always reflects the latest due-date math without
+ * needing a cron.
+ */
+export async function GET(request: Request) {
+  try {
+    await requirePlatformRole();
+  } catch {
+    return NextResponse.json({ error: "Forbidden" }, { status: 403 });
+  }
+
+  await syncOverdueInvoices().catch((e) =>
+    console.error("syncOverdueInvoices failed:", e)
+  );
+
+  const { searchParams } = new URL(request.url);
+  const status = searchParams.get("status") as InvoiceStatus | null;
+  const orgId = searchParams.get("orgId");
+  const month = searchParams.get("month");
+  const limitParam = searchParams.get("limit");
+  const limit = limitParam ? Math.max(1, Math.min(1000, parseInt(limitParam, 10))) : 200;
+
+  const invoices = await listInvoices({
+    status: status ?? undefined,
+    zitadelOrgId: orgId ?? undefined,
+    periodMonth: month ?? undefined,
+    limit,
+  });
+  return NextResponse.json(invoices);
+}

src/app/api/admin/billing/orgs/route.ts

@@ -0,0 +1,80 @@
+import { NextResponse } from "next/server";
+import { requirePlatformRole } from "@/lib/session";
+import { listTenants } from "@/lib/k8s";
+import { getOrgBilling, getOrgOpenBalances } from "@/lib/db";
+
+/**
+ * GET /api/admin/billing/orgs
+ *
+ * Returns the orgs known to the platform via tenant labels, with
+ * their billing-address-on-file status and open balance summary.
+ * Powers the generate form's org dropdown and the billing landing
+ * page's open-balance table.
+ *
+ * Each entry:
+ *   {
+ *     zitadelOrgId: string,
+ *     tenantCount: number,
+ *     hasBillingAddress: boolean,
+ *     companyName: string | null,
+ *     openCount: number,
+ *     overdueCount: number,
+ *     totalOpenChf: number
+ *   }
+ */
+export async function GET() {
+  try {
+    await requirePlatformRole();
+  } catch {
+    return NextResponse.json({ error: "Forbidden" }, { status: 403 });
+  }
+
+  // Org membership is derived from tenant labels — there's no
+  // separate "orgs" table on the portal. listTenants reads from
+  // K8s, which is the source of truth.
+  const tenants = await listTenants();
+  const orgIdToTenants = new Map<string, string[]>();
+  for (const t of tenants) {
+    const oid = t.metadata.labels?.["pieced.ch/zitadel-org-id"];
+    if (!oid) continue;
+    if (!orgIdToTenants.has(oid)) orgIdToTenants.set(oid, []);
+    orgIdToTenants.get(oid)!.push(t.metadata.name);
+  }
+
+  const balances = await getOrgOpenBalances();
+  const balanceMap = new Map(balances.map((b) => [b.zitadelOrgId, b]));
+
+  // Hydrate billing-address presence + company name per org.
+  const results = await Promise.all(
+    [...orgIdToTenants.entries()].map(async ([orgId, tenantNames]) => {
+      const billing = await getOrgBilling(orgId).catch(() => null);
+      const bal = balanceMap.get(orgId);
+      return {
+        zitadelOrgId: orgId,
+        tenantCount: tenantNames.length,
+        tenantNames,
+        hasBillingAddress: !!billing,
+        companyName: billing?.companyName ?? null,
+        country: billing?.country ?? null,
+        openCount: bal?.openCount ?? 0,
+        overdueCount: bal?.overdueCount ?? 0,
+        totalOpenChf: bal?.totalOpenChf ?? 0,
+      };
+    })
+  );
+
+  // Sort: orgs with overdue first, then open, then by name.
+  results.sort((a, b) => {
+    if (a.overdueCount !== b.overdueCount) {
+      return b.overdueCount - a.overdueCount;
+    }
+    if (a.openCount !== b.openCount) {
+      return b.openCount - a.openCount;
+    }
+    return (a.companyName ?? a.zitadelOrgId).localeCompare(
+      b.companyName ?? b.zitadelOrgId
+    );
+  });
+
+  return NextResponse.json(results);
+}

src/app/api/admin/billing/pricing/route.ts

@@ -0,0 +1,59 @@
+import { NextResponse } from "next/server";
+import { z } from "zod";
+import { requirePlatformRole } from "@/lib/session";
+import { getPlatformPricing, updatePlatformPricing } from "@/lib/db";
+import { safeError } from "@/lib/errors";
+
+/**
+ * GET /api/admin/billing/pricing
+ * Returns the single-row platform pricing config.
+ *
+ * PUT /api/admin/billing/pricing
+ * Updates one or more pricing fields. Missing fields are left
+ * unchanged.
+ *
+ * Both endpoints are platform-role only.
+ */
+
+const updateSchema = z.object({
+  tenantMonthlyFeeChf: z.number().min(0).max(99_999_999).optional(),
+  tenantSetupFeeChf: z.number().min(0).max(99_999_999).optional(),
+  threemaMessageChf: z.number().min(0).max(1000).optional(),
+  vatRateChli: z.number().min(0).max(100).optional(),
+});
+
+export async function GET() {
+  try {
+    await requirePlatformRole();
+  } catch {
+    return NextResponse.json({ error: "Forbidden" }, { status: 403 });
+  }
+  const pricing = await getPlatformPricing();
+  return NextResponse.json(pricing);
+}
+
+export async function PUT(request: Request) {
+  try {
+    await requirePlatformRole();
+  } catch {
+    return NextResponse.json({ error: "Forbidden" }, { status: 403 });
+  }
+  const body = await request.json().catch(() => ({}));
+  const parsed = updateSchema.safeParse(body);
+  if (!parsed.success) {
+    return NextResponse.json(
+      { error: "Invalid pricing payload", details: parsed.error.flatten() },
+      { status: 400 }
+    );
+  }
+  try {
+    const updated = await updatePlatformPricing(parsed.data);
+    return NextResponse.json(updated);
+  } catch (e) {
+    console.error("Failed to update platform pricing:", e);
+    return NextResponse.json(
+      { error: safeError(e, "Update failed") },
+      { status: 500 }
+    );
+  }
+}

src/app/api/admin/billing/skill-pricing/[skill]/route.ts

@@ -0,0 +1,33 @@
+import { NextResponse } from "next/server";
+import { requirePlatformRole } from "@/lib/session";
+import { removeSkillPricing } from "@/lib/db";
+import { safeError } from "@/lib/errors";
+
+/**
+ * DELETE /api/admin/billing/skill-pricing/[skill]
+ * Remove pricing for a skill. Toggle events continue to be
+ * recorded; the skill simply becomes free starting from the next
+ * generated invoice. Historical invoices already issued are
+ * unaffected (they carry frozen line amounts).
+ */
+export async function DELETE(
+  _request: Request,
+  { params }: { params: Promise<{ skill: string }> }
+) {
+  try {
+    await requirePlatformRole();
+  } catch {
+    return NextResponse.json({ error: "Forbidden" }, { status: 403 });
+  }
+  const { skill } = await params;
+  try {
+    await removeSkillPricing(skill);
+    return NextResponse.json({ message: "Removed." });
+  } catch (e) {
+    console.error("Failed to remove skill pricing:", e);
+    return NextResponse.json(
+      { error: safeError(e, "Remove failed") },
+      { status: 500 }
+    );
+  }
+}

src/app/api/admin/billing/skill-pricing/route.ts

@@ -0,0 +1,76 @@
+import { NextResponse } from "next/server";
+import { z } from "zod";
+import { requirePlatformRole } from "@/lib/session";
+import { listSkillPricing, setSkillPricing } from "@/lib/db";
+import { getPackageDef } from "@/lib/packages";
+import { safeError } from "@/lib/errors";
+
+/**
+ * GET /api/admin/billing/skill-pricing
+ *   List all configured skill prices.
+ *
+ * PUT /api/admin/billing/skill-pricing
+ *   Upsert a daily price for a single skill. Body:
+ *     { skillId: string, dailyPriceChf: number }
+ *
+ * Both endpoints are platform-only.
+ *
+ * Note on skillId validation: we accept any package id that exists
+ * in PACKAGE_CATALOG. The PIN to "skills only" is enforced at the
+ * UI layer, not here, so admins can price a non-skill package in
+ * an emergency without code changes.
+ */
+
+const upsertSchema = z.object({
+  skillId: z.string().min(1).max(100),
+  dailyPriceChf: z.number().min(0).max(1_000_000),
+});
+
+export async function GET() {
+  try {
+    await requirePlatformRole();
+  } catch {
+    return NextResponse.json({ error: "Forbidden" }, { status: 403 });
+  }
+  const rows = await listSkillPricing();
+  return NextResponse.json(rows);
+}
+
+export async function PUT(request: Request) {
+  try {
+    await requirePlatformRole();
+  } catch {
+    return NextResponse.json({ error: "Forbidden" }, { status: 403 });
+  }
+  const body = await request.json().catch(() => ({}));
+  const parsed = upsertSchema.safeParse(body);
+  if (!parsed.success) {
+    return NextResponse.json(
+      { error: "Invalid payload", details: parsed.error.flatten() },
+      { status: 400 }
+    );
+  }
+  // Validate the skill id exists in PACKAGE_CATALOG. Returns null
+  // for unknown ids; we reject those rather than persist a row that
+  // would never match a real toggle event.
+  const pkg = getPackageDef(parsed.data.skillId);
+  if (!pkg) {
+    return NextResponse.json(
+      { error: `Unknown package id: ${parsed.data.skillId}` },
+      { status: 400 }
+    );
+  }
+  try {
+    const row = await setSkillPricing(
+      parsed.data.skillId,
+      parsed.data.dailyPriceChf
+    );
+    return NextResponse.json(row);
+  } catch (e) {
+    console.error("Failed to upsert skill pricing:", e);
+    return NextResponse.json(
+      { error: safeError(e, "Upsert failed") },
+      { status: 500 }
+    );
+  }
+}

src/app/api/admin/requests/[id]/approve/route.ts

@@ -4,6 +4,9 @@ import {
   getTenantRequestById,
   updateTenantRequestStatus,
   clearEncryptedSecrets,
+  recordTenantCreated,
+  recordSkillEvents,
+  recordSuspensionEvent,
 } from "@/lib/db";
 import { createTenant, patchTenantSpec, setTenantAnnotation } from "@/lib/k8s";
 import { sendApprovalEmail, sendResumeApprovalEmail } from "@/lib/email";
@@ -85,6 +88,23 @@ export async function POST(
     }
     try {
       await patchTenantSpec(tenantRequest.tenantName, { suspend: false });
+
+      // Billing — Phase 1: record the resume so monthly proration
+      // counts the suspended segment correctly. Best-effort; if
+      // logging fails, the approval still succeeds.
+      try {
+        await recordSuspensionEvent(
+          tenantRequest.tenantName,
+          tenantRequest.zitadelOrgId,
+          "resumed"
+        );
+      } catch (e) {
+        console.error(
+          "billing: failed to record resumed suspension event:",
+          e
+        );
+      }
+
       // Clear the annotation that pauses the operator's 60-day TTL.
       // Best-effort — annotation cleanup is also done by the operator
       // when it sees suspend=false on the next reconcile (it clears
@@ -199,6 +219,35 @@ export async function POST(
       }
     );
 
+    // Billing — Phase 1: record the tenant's creation and initial
+    // package state. Anchored at "now" rather than the CR's
+    // creationTimestamp because we don't get the timestamp back from
+    // createTenant — the few-millisecond skew vs the CR's actual
+    // creationTimestamp is irrelevant for monthly billing.
+    //
+    // Best-effort: tracking failures must never block provisioning.
+    // The backfill helper can repair any gaps later if needed.
+    const billingAnchor = new Date();
+    try {
+      await recordTenantCreated(
+        tenantName,
+        tenantRequest.zitadelOrgId,
+        billingAnchor
+      );
+      await recordSkillEvents(
+        tenantName,
+        tenantRequest.zitadelOrgId,
+        packages,
+        [],
+        billingAnchor
+      );
+    } catch (e) {
+      console.error(
+        "billing: failed to record tenant creation / initial skill events:",
+        e
+      );
+    }
+
     // Step 5: Update request status — clear admin notes on re-approval
     const updated = await updateTenantRequestStatus(id, "provisioning", {
       adminNotes: isReApproval ? null : adminNotes,

src/app/api/admin/tenants/[name]/delete/route.ts

@@ -4,6 +4,7 @@ import { getTenant, deleteTenant } from "@/lib/k8s";
 import {
   markTenantRequestDeletedByTenantName,
   removeAllAssignmentsForTenant,
+  recordTenantDeleted,
 } from "@/lib/db";
 import { safeError } from "@/lib/errors";
 
@@ -49,6 +50,15 @@ export async function POST(
       console.error("Failed to clean up tenant assignments:", e)
     );
 
+    // Billing — Phase 1: stamp deletion timestamp on the lifecycle
+    // row so the final invoice covering the deletion month can
+    // prorate correctly. Idempotent at the DB layer; a missing
+    // lifecycle row (e.g. pre-Phase-1 tenants that haven't been
+    // backfilled yet) makes this a no-op.
+    await recordTenantDeleted(name).catch((e) =>
+      console.error("billing: failed to stamp tenant deletion:", e)
+    );
+
     return NextResponse.json({
       message: "Tenant deletion initiated. The operator will clean up all resources.",
     });

src/app/api/admin/tenants/[name]/suspend/route.ts

@@ -1,6 +1,7 @@
 import { NextResponse } from "next/server";
 import { requirePlatformRole } from "@/lib/session";
 import { getTenant, patchTenantSpec } from "@/lib/k8s";
+import { recordSuspensionEvent } from "@/lib/db";
 import { safeError } from "@/lib/errors";
 
 /**
@@ -29,6 +30,32 @@ export async function POST(
 
   try {
     const updated = await patchTenantSpec(name, { suspend });
+
+    // Billing — Phase 1: record the transition. Mirrors the same
+    // hook in the customer-side suspend route so admin actions
+    // also produce events. Best-effort; logging failures don't
+    // block the response.
+    try {
+      const orgId =
+        tenant.metadata.labels?.["pieced.ch/zitadel-org-id"] ?? null;
+      if (orgId) {
+        await recordSuspensionEvent(
+          name,
+          orgId,
+          suspend ? "suspended" : "resumed"
+        );
+      } else {
+        console.warn(
+          `billing: tenant ${name} has no zitadel-org-id label; suspension event not recorded`
+        );
+      }
+    } catch (e) {
+      console.error(
+        `billing: failed to record suspension event for ${name}:`,
+        e
+      );
+    }
+
     return NextResponse.json({
       message: suspend ? "Tenant suspended." : "Tenant resumed.",
       tenant: updated,

src/app/api/tenants/[name]/route.ts

@@ -3,6 +3,7 @@ import { getSessionUser, canMutate } from "@/lib/session";
 import { canUserSeeTenant } from "@/lib/visibility";
 import { getTenant, patchTenantSpec } from "@/lib/k8s";
 import { getPackageDef } from "@/lib/packages";
+import { recordSkillEvents } from "@/lib/db";
 import { safeError } from "@/lib/errors";
 
 const ALLOWED_WORKSPACE_FILES = ["SOUL.md", "AGENTS.md", "TOOLS.md"];
@@ -187,6 +188,50 @@ export async function PATCH(
     }
 
     const updated = await patchTenantSpec(name, specPatch);
+
+    // Billing — Phase 1: if packages changed, record enable/disable
+    // events. The diff is computed against the patched CR (the
+    // returned state) rather than `existing` so the events match
+    // what K8s actually committed. Best-effort: a logging failure
+    // never poisons the PATCH response — drift would be reconciled
+    // on the next backfill or by the next normal toggle.
+    //
+    // Note on races: two concurrent PATCHes could each see the
+    // same `existing` and both succeed at the K8s layer (last write
+    // wins for spec.packages, which is replaced wholesale). The
+    // events from the losing PATCH would then describe a transition
+    // that no longer reflects reality. Acceptable trade-off for v1
+    // — the toggle UI sends one request at a time and races would
+    // only matter for adjacent same-day toggles, which the billing
+    // computation collapses to a single billable day anyway.
+    if (specPatch.packages !== undefined) {
+      try {
+        const orgId =
+          existing.metadata.labels?.["pieced.ch/zitadel-org-id"] ?? null;
+        if (orgId) {
+          const oldSet = new Set<string>(existing.spec.packages ?? []);
+          const newSet = new Set<string>(updated.spec.packages ?? []);
+          const added = [...newSet].filter((x) => !oldSet.has(x));
+          const removed = [...oldSet].filter((x) => !newSet.has(x));
+          if (added.length > 0 || removed.length > 0) {
+            await recordSkillEvents(name, orgId, added, removed);
+          }
+        } else {
+          // A tenant without the org label is a pre-Slice-3 artifact
+          // — we can't attribute its skill events to any org. Log
+          // and skip rather than guess.
+          console.warn(
+            `billing: tenant ${name} has no zitadel-org-id label; skill events not recorded`
+          );
+        }
+      } catch (e) {
+        console.error(
+          `billing: failed to record skill events for ${name}:`,
+          e
+        );
+      }
+    }
+
     return NextResponse.json(updated);
   } catch (e: any) {
     return NextResponse.json(

src/app/api/tenants/[name]/suspend/route.ts

@@ -3,6 +3,7 @@ import { z } from "zod";
 import { getSessionUser, canMutate } from "@/lib/session";
 import { getTenant, patchTenantSpec, setTenantAnnotation } from "@/lib/k8s";
 import { canUserSeeTenant } from "@/lib/visibility";
+import { recordSuspensionEvent } from "@/lib/db";
 import { safeError } from "@/lib/errors";
 
 const patchSchema = z.object({
@@ -101,6 +102,33 @@ export async function PATCH(
   try {
     await patchTenantSpec(name, { suspend });
 
+    // Billing — Phase 1: record the transition so monthly proration
+    // can exclude suspended days from the fixed fee. The portal
+    // commands this transition; the operator's status.suspendedAt
+    // lags by a reconcile cycle (seconds), which is irrelevant for
+    // monthly billing. Best-effort: a logging failure never blocks
+    // the suspend/resume itself.
+    try {
+      const orgId =
+        tenant.metadata.labels?.["pieced.ch/zitadel-org-id"] ?? null;
+      if (orgId) {
+        await recordSuspensionEvent(
+          name,
+          orgId,
+          suspend ? "suspended" : "resumed"
+        );
+      } else {
+        console.warn(
+          `billing: tenant ${name} has no zitadel-org-id label; suspension event not recorded`
+        );
+      }
+    } catch (e) {
+      console.error(
+        `billing: failed to record suspension event for ${name}:`,
+        e
+      );
+    }
+
     // On admin-side resume, also clear the pending-resume-request
     // annotation if it exists. Belt-and-suspenders: the admin-approve
     // endpoint already clears it on its happy path, but a platform

src/components/admin/billing/generate-form.tsx

@@ -0,0 +1,345 @@
+"use client";
+
+import { useState, Fragment } from "react";
+import { useRouter } from "next/navigation";
+import { useTranslations } from "next-intl";
+import { Card, CardHeader } from "@/components/ui/card";
+import type { InvoiceDraft } from "@/types";
+
+interface OrgEntry {
+  zitadelOrgId: string;
+  tenantNames: string[];
+  companyName: string | null;
+  country: string | null;
+  hasBillingAddress: boolean;
+}
+
+interface Props {
+  orgs: OrgEntry[];
+}
+
+const LOCALE_OPTIONS = [
+  { value: "de", label: "Deutsch" },
+  { value: "en", label: "English" },
+  { value: "fr", label: "Français" },
+  { value: "it", label: "Italiano" },
+];
+
+/**
+ * Two-step flow: preview (dryRun) → commit.
+ *
+ * Preview displays the InvoiceDraft (lines, subtotal, VAT, total)
+ * plus any warnings. Admin reviews and either commits or aborts.
+ * Commit re-runs the generator without dryRun and redirects to the
+ * persisted invoice's detail page.
+ */
+export function GenerateForm({ orgs }: Props) {
+  const t = useTranslations("adminBilling");
+  const router = useRouter();
+
+  // Default to previous calendar month — that's the typical "bill
+  // for last month" use case.
+  const now = new Date();
+  const prevMonth = new Date(now.getFullYear(), now.getMonth() - 1, 1);
+  const [orgId, setOrgId] = useState(orgs[0]?.zitadelOrgId ?? "");
+  const [year, setYear] = useState(String(prevMonth.getFullYear()));
+  const [month, setMonth] = useState(String(prevMonth.getMonth() + 1));
+  const [locale, setLocale] = useState<string>("");
+  const [draft, setDraft] = useState<InvoiceDraft | null>(null);
+  const [error, setError] = useState("");
+  const [busy, setBusy] = useState(false);
+
+  const selectedOrg = orgs.find((o) => o.zitadelOrgId === orgId);
+  // Auto-detect default locale from country if admin hasn't picked
+  // one. Same logic as billing.ts's defaultLocaleForCountry.
+  const effectiveLocale =
+    locale ||
+    (() => {
+      const c = (selectedOrg?.country || "").toUpperCase();
+      if (["CH", "LI", "AT", "DE"].includes(c)) return "de";
+      if (["FR", "BE", "LU"].includes(c)) return "fr";
+      if (c === "IT") return "it";
+      return "en";
+    })();
+
+  const preview = async () => {
+    setError("");
+    setDraft(null);
+    setBusy(true);
+    try {
+      const res = await fetch("/api/admin/billing/generate", {
+        method: "POST",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify({
+          zitadelOrgId: orgId,
+          year: Number(year),
+          month: Number(month),
+          locale: effectiveLocale,
+          dryRun: true,
+        }),
+      });
+      const j = await res.json();
+      if (!res.ok) throw new Error(j.error || `HTTP ${res.status}`);
+      setDraft(j.draft);
+    } catch (e: any) {
+      setError(e.message);
+    } finally {
+      setBusy(false);
+    }
+  };
+
+  const commit = async () => {
+    if (!draft) return;
+    if (!confirm(t("confirmGenerate"))) return;
+    setError("");
+    setBusy(true);
+    try {
+      const res = await fetch("/api/admin/billing/generate", {
+        method: "POST",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify({
+          zitadelOrgId: orgId,
+          year: Number(year),
+          month: Number(month),
+          locale: effectiveLocale,
+          dryRun: false,
+        }),
+      });
+      const j = await res.json();
+      if (!res.ok) throw new Error(j.error || `HTTP ${res.status}`);
+      // Navigate to the new invoice's detail page.
+      if (j.invoice?.id) {
+        router.push(`/admin/billing/invoices/${j.invoice.id}`);
+      }
+    } catch (e: any) {
+      setError(e.message);
+      setBusy(false);
+    }
+  };
+
+  return (
+    <div className="space-y-6">
+      <Card>
+        <CardHeader>{t("generateFormTitle")}</CardHeader>
+        {orgs.length === 0 ? (
+          <p className="text-sm text-text-muted italic">{t("noOrgsToGenerate")}</p>
+        ) : (
+          <div className="space-y-4">
+            <label className="block">
+              <span className="text-sm text-text-secondary">{t("orgLabel")}</span>
+              <select
+                value={orgId}
+                onChange={(e) => {
+                  setOrgId(e.target.value);
+                  setDraft(null);
+                }}
+                className="mt-1 w-full px-3 py-2 rounded-md border border-border bg-surface-2 text-sm"
+              >
+                {orgs.map((o) => (
+                  <option key={o.zitadelOrgId} value={o.zitadelOrgId}>
+                    {o.companyName ?? o.zitadelOrgId}
+                    {!o.hasBillingAddress ? ` — ${t("noBillingAddrTag")}` : ""}
+                    {` (${o.tenantNames.length} ${t("tenantsLabel")})`}
+                  </option>
+                ))}
+              </select>
+              {selectedOrg && !selectedOrg.hasBillingAddress && (
+                <p className="text-xs text-error mt-1">
+                  {t("noBillingAddrWarning")}
+                </p>
+              )}
+            </label>
+            <div className="grid grid-cols-3 gap-3">
+              <label className="block">
+                <span className="text-sm text-text-secondary">{t("yearLabel")}</span>
+                <input
+                  type="number"
+                  min="2020"
+                  max="2100"
+                  value={year}
+                  onChange={(e) => {
+                    setYear(e.target.value);
+                    setDraft(null);
+                  }}
+                  className="mt-1 w-full px-3 py-2 rounded-md border border-border bg-surface-2 text-sm"
+                />
+              </label>
+              <label className="block">
+                <span className="text-sm text-text-secondary">{t("monthLabel")}</span>
+                <select
+                  value={month}
+                  onChange={(e) => {
+                    setMonth(e.target.value);
+                    setDraft(null);
+                  }}
+                  className="mt-1 w-full px-3 py-2 rounded-md border border-border bg-surface-2 text-sm"
+                >
+                  {Array.from({ length: 12 }, (_, i) => i + 1).map((m) => (
+                    <option key={m} value={m}>
+                      {String(m).padStart(2, "0")}
+                    </option>
+                  ))}
+                </select>
+              </label>
+              <label className="block">
+                <span className="text-sm text-text-secondary">
+                  {t("localeLabel")}
+                </span>
+                <select
+                  value={locale}
+                  onChange={(e) => {
+                    setLocale(e.target.value);
+                    setDraft(null);
+                  }}
+                  className="mt-1 w-full px-3 py-2 rounded-md border border-border bg-surface-2 text-sm"
+                >
+                  <option value="">
+                    {t("localeAuto")} ({effectiveLocale})
+                  </option>
+                  {LOCALE_OPTIONS.map((o) => (
+                    <option key={o.value} value={o.value}>
+                      {o.label}
+                    </option>
+                  ))}
+                </select>
+              </label>
+            </div>
+            <div className="flex items-center gap-3 pt-2">
+              <button
+                onClick={preview}
+                disabled={busy || !selectedOrg?.hasBillingAddress}
+                className="px-4 py-2 rounded-md border border-border text-sm disabled:opacity-50"
+              >
+                {busy && !draft ? t("computing") : t("previewBtn")}
+              </button>
+              {draft && (
+                <button
+                  onClick={commit}
+                  disabled={busy}
+                  className="px-4 py-2 rounded-md bg-accent text-white text-sm disabled:opacity-50"
+                >
+                  {busy ? t("saving") : t("commitBtn")}
+                </button>
+              )}
+              {error && (
+                <span className="text-sm text-error">{error}</span>
+              )}
+            </div>
+          </div>
+        )}
+      </Card>
+
+      {draft && <DraftPreview draft={draft} />}
+    </div>
+  );
+}
+
+function DraftPreview({ draft }: { draft: InvoiceDraft }) {
+  const t = useTranslations("adminBilling");
+
+  // Group lines by tenant for the preview (matches PDF layout).
+  const linesByTenant = new Map<string | null, typeof draft.lines>();
+  for (const ln of draft.lines) {
+    const key = ln.tenantName;
+    if (!linesByTenant.has(key)) linesByTenant.set(key, []);
+    linesByTenant.get(key)!.push(ln);
+  }
+  const tenantOrder = [...linesByTenant.keys()].sort((a, b) => {
+    if (a === null) return 1;
+    if (b === null) return -1;
+    return a.localeCompare(b);
+  });
+
+  return (
+    <Card>
+      <CardHeader>
+        {t("previewTitle")} — {draft.periodStart} → {draft.periodEnd}
+      </CardHeader>
+
+      {draft.warnings.length > 0 && (
+        <div className="mb-4 p-3 rounded-md border border-warning bg-warning/10 text-sm space-y-1">
+          <div className="font-semibold text-warning">{t("warningsTitle")}</div>
+          {draft.warnings.map((w, i) => (
+            <div key={i} className="text-text-secondary">• {w}</div>
+          ))}
+        </div>
+      )}
+
+      <table className="w-full text-sm">
+        <thead className="text-xs text-text-muted text-left">
+          <tr>
+            <th className="pb-2">{t("descCol")}</th>
+            <th className="pb-2 text-right">{t("qtyCol")}</th>
+            <th className="pb-2 text-right">{t("unitPriceCol")}</th>
+            <th className="pb-2 text-right">{t("amountCol")}</th>
+          </tr>
+        </thead>
+        <tbody>
+          {tenantOrder.map((tenantKey) => {
+            const lines = linesByTenant.get(tenantKey)!;
+            return (
+              <Fragment key={tenantKey ?? "_org"}>
+                {tenantKey && (
+                  <tr className="border-t border-border">
+                    <td colSpan={4} className="py-1.5 pt-3">
+                      <span className="text-xs font-semibold text-accent">
+                        {tenantKey}
+                      </span>
+                    </td>
+                  </tr>
+                )}
+                {lines.map((ln, i) => (
+                  <tr
+                    key={`${tenantKey}-${i}`}
+                    className="border-t border-border"
+                  >
+                    <td className="py-1.5">
+                      <div>{ln.description}</div>
+                      <div className="text-xs text-text-muted font-mono">
+                        {ln.kind}
+                      </div>
+                    </td>
+                    <td className="py-1.5 text-right">
+                      {ln.quantity}
+                      {ln.unitLabel ? ` ${ln.unitLabel}` : ""}
+                    </td>
+                    <td className="py-1.5 text-right font-mono text-xs">
+                      {ln.unitPriceChf.toFixed(4)}
+                    </td>
+                    <td className="py-1.5 text-right">
+                      {ln.amountChf.toFixed(2)}
+                    </td>
+                  </tr>
+                ))}
+              </Fragment>
+            );
+          })}
+          {draft.lines.length === 0 && (
+            <tr>
+              <td colSpan={4} className="py-4 text-center text-text-muted italic">
+                {t("noLinesGenerated")}
+              </td>
+            </tr>
+          )}
+        </tbody>
+      </table>
+
+      <div className="mt-4 pt-3 border-t border-border space-y-1 text-sm">
+        <div className="flex justify-between">
+          <span className="text-text-muted">{t("subtotal")}</span>
+          <span>CHF {draft.subtotalChf.toFixed(2)}</span>
+        </div>
+        <div className="flex justify-between">
+          <span className="text-text-muted">
+            {t("vat")} ({draft.vatRate.toFixed(2)}%)
+          </span>
+          <span>CHF {draft.vatAmountChf.toFixed(2)}</span>
+        </div>
+        <div className="flex justify-between pt-1 border-t border-border font-semibold">
+          <span>{t("total")}</span>
+          <span>CHF {draft.totalChf.toFixed(2)}</span>
+        </div>
+      </div>
+    </Card>
+  );
+}

src/components/admin/billing/invoice-detail-view.tsx

@@ -0,0 +1,307 @@
+"use client";
+
+import { useState, Fragment } from "react";
+import { useRouter } from "next/navigation";
+import { useTranslations } from "next-intl";
+import { Card, CardHeader } from "@/components/ui/card";
+import type { InvoiceDetail, InvoiceStatus } from "@/types";
+
+interface Props {
+  detail: InvoiceDetail;
+}
+
+/**
+ * Renders the invoice header (status, totals, action bar) then
+ * line items grouped by tenant, then billing snapshot. Actions are
+ * mark-paid (POST), delete (DELETE), PDF download (link to /pdf).
+ *
+ * On successful action we router.refresh() — the server-side page
+ * re-renders against the new DB state. For delete we navigate
+ * away first.
+ */
+export function InvoiceDetailView({ detail }: Props) {
+  const t = useTranslations("adminBilling");
+  const router = useRouter();
+  const { invoice, lines } = detail;
+
+  const [busyAction, setBusyAction] = useState<null | "mark-paid" | "delete">(
+    null
+  );
+  const [actionError, setActionError] = useState("");
+  const [noteInput, setNoteInput] = useState("");
+  const [noteOpen, setNoteOpen] = useState(false);
+
+  const markPaid = async () => {
+    setActionError("");
+    setBusyAction("mark-paid");
+    try {
+      const res = await fetch(
+        `/api/admin/billing/invoices/${invoice.id}/mark-paid`,
+        {
+          method: "POST",
+          headers: { "Content-Type": "application/json" },
+          body: JSON.stringify({ note: noteInput || undefined }),
+        }
+      );
+      const j = await res.json().catch(() => ({}));
+      if (!res.ok) throw new Error(j.error || `HTTP ${res.status}`);
+      setNoteOpen(false);
+      setNoteInput("");
+      router.refresh();
+    } catch (e: any) {
+      setActionError(e.message);
+    } finally {
+      setBusyAction(null);
+    }
+  };
+
+  const deleteInvoice = async () => {
+    if (!confirm(t("confirmDeleteInvoice", { num: invoice.invoiceNumber })))
+      return;
+    setActionError("");
+    setBusyAction("delete");
+    try {
+      const res = await fetch(`/api/admin/billing/invoices/${invoice.id}`, {
+        method: "DELETE",
+      });
+      if (!res.ok) {
+        const j = await res.json().catch(() => ({}));
+        throw new Error(j.error || `HTTP ${res.status}`);
+      }
+      router.push("/admin/billing/invoices");
+    } catch (e: any) {
+      setActionError(e.message);
+      setBusyAction(null);
+    }
+  };
+
+  // Group lines by tenant for display (matches PDF layout).
+  const linesByTenant = new Map<string | null, typeof lines>();
+  for (const ln of lines) {
+    const k = ln.tenantName;
+    if (!linesByTenant.has(k)) linesByTenant.set(k, []);
+    linesByTenant.get(k)!.push(ln);
+  }
+  const tenantOrder = [...linesByTenant.keys()].sort((a, b) => {
+    if (a === null) return 1;
+    if (b === null) return -1;
+    return a.localeCompare(b);
+  });
+
+  return (
+    <div className="space-y-4 animate-in">
+      <div className="flex items-end justify-between flex-wrap gap-3">
+        <div>
+          <h1 className="font-display text-2xl font-semibold accent-rule">
+            {invoice.invoiceNumber}
+          </h1>
+          <div className="flex items-center gap-3 mt-3 text-sm">
+            <StatusPill status={invoice.status} />
+            <span className="text-text-muted">
+              {invoice.periodStart} → {invoice.periodEnd}
+            </span>
+            <span className="text-text-muted">·</span>
+            <span className="text-text-muted">
+              {t("dueOnLabel")}: {invoice.dueAt}
+            </span>
+            <span className="text-text-muted">·</span>
+            <span className="text-text-muted font-mono text-xs">
+              {invoice.locale}
+            </span>
+          </div>
+        </div>
+        <div className="text-right">
+          <div className="text-xs text-text-muted">{t("totalLabel")}</div>
+          <div className="text-2xl font-semibold font-mono">
+            CHF {invoice.totalChf.toFixed(2)}
+          </div>
+        </div>
+      </div>
+
+      {/* Action bar */}
+      <Card>
+        <div className="flex flex-wrap items-center gap-3">
+          {invoice.hasPdf && (
+            <a
+              href={`/api/admin/billing/invoices/${invoice.id}/pdf`}
+              target="_blank"
+              rel="noopener noreferrer"
+              className="px-4 py-2 rounded-md border border-border text-sm hover:bg-surface-2"
+            >
+              {t("downloadPdfBtn")}
+            </a>
+          )}
+          {(invoice.status === "open" || invoice.status === "overdue") && (
+            <>
+              {!noteOpen ? (
+                <button
+                  onClick={() => setNoteOpen(true)}
+                  disabled={busyAction !== null}
+                  className="px-4 py-2 rounded-md bg-accent text-white text-sm disabled:opacity-50"
+                >
+                  {t("markPaidBtn")}
+                </button>
+              ) : (
+                <div className="flex items-center gap-2 flex-grow">
+                  <input
+                    type="text"
+                    placeholder={t("paidNotePlaceholder")}
+                    value={noteInput}
+                    onChange={(e) => setNoteInput(e.target.value)}
+                    className="flex-grow px-3 py-1.5 rounded-md border border-border bg-surface-2 text-sm"
+                    autoFocus
+                  />
+                  <button
+                    onClick={markPaid}
+                    disabled={busyAction !== null}
+                    className="px-3 py-1.5 rounded-md bg-accent text-white text-sm disabled:opacity-50"
+                  >
+                    {busyAction === "mark-paid" ? t("saving") : t("confirm")}
+                  </button>
+                  <button
+                    onClick={() => {
+                      setNoteOpen(false);
+                      setNoteInput("");
+                    }}
+                    className="px-3 py-1.5 rounded-md border border-border text-sm"
+                  >
+                    {t("cancel")}
+                  </button>
+                </div>
+              )}
+            </>
+          )}
+          <button
+            onClick={deleteInvoice}
+            disabled={busyAction !== null}
+            className="ml-auto px-4 py-2 rounded-md border border-error text-error text-sm disabled:opacity-50 hover:bg-error/10"
+            title={t("deleteHint")}
+          >
+            {busyAction === "delete" ? t("deleting") : t("deleteBtn")}
+          </button>
+        </div>
+        {actionError && (
+          <div className="mt-3 text-sm text-error">{actionError}</div>
+        )}
+        {invoice.paidAt && (
+          <div className="mt-3 text-xs text-text-muted">
+            {t("paidOnLabel")}: {invoice.paidAt} · {invoice.paidBy} ·{" "}
+            {invoice.paidMethodDetail}
+          </div>
+        )}
+      </Card>
+
+      {/* Lines */}
+      <Card>
+        <CardHeader>{t("lineItemsTitle")}</CardHeader>
+        <table className="w-full text-sm">
+          <thead className="text-xs text-text-muted text-left">
+            <tr>
+              <th className="pb-2">{t("descCol")}</th>
+              <th className="pb-2 text-right">{t("qtyCol")}</th>
+              <th className="pb-2 text-right">{t("unitPriceCol")}</th>
+              <th className="pb-2 text-right">{t("amountCol")}</th>
+            </tr>
+          </thead>
+          <tbody>
+            {tenantOrder.map((tenantKey) => {
+              const tenantLines = linesByTenant.get(tenantKey)!;
+              return (
+                <Fragment key={tenantKey ?? "_org"}>
+                  {tenantKey && (
+                    <tr>
+                      <td colSpan={4} className="pt-3 pb-1">
+                        <span className="text-xs font-semibold text-accent">
+                          {tenantKey}
+                        </span>
+                      </td>
+                    </tr>
+                  )}
+                  {tenantLines.map((ln) => (
+                    <tr key={ln.id} className="border-t border-border">
+                      <td className="py-1.5">
+                        <div>{ln.description}</div>
+                        <div className="text-xs text-text-muted font-mono">
+                          {ln.kind}
+                        </div>
+                      </td>
+                      <td className="py-1.5 text-right">
+                        {ln.quantity}
+                        {ln.unitLabel ? ` ${ln.unitLabel}` : ""}
+                      </td>
+                      <td className="py-1.5 text-right font-mono text-xs">
+                        {ln.unitPriceChf.toFixed(4)}
+                      </td>
+                      <td className="py-1.5 text-right">
+                        {ln.amountChf.toFixed(2)}
+                      </td>
+                    </tr>
+                  ))}
+                </Fragment>
+              );
+            })}
+          </tbody>
+        </table>
+        <div className="mt-4 pt-3 border-t border-border space-y-1 text-sm">
+          <div className="flex justify-between">
+            <span className="text-text-muted">{t("subtotal")}</span>
+            <span>CHF {invoice.subtotalChf.toFixed(2)}</span>
+          </div>
+          <div className="flex justify-between">
+            <span className="text-text-muted">
+              {t("vat")} ({invoice.vatRate.toFixed(2)}%)
+            </span>
+            <span>CHF {invoice.vatAmountChf.toFixed(2)}</span>
+          </div>
+          <div className="flex justify-between pt-1 border-t border-border font-semibold">
+            <span>{t("total")}</span>
+            <span>CHF {invoice.totalChf.toFixed(2)}</span>
+          </div>
+        </div>
+      </Card>
+
+      {/* Billing snapshot */}
+      <Card>
+        <CardHeader>{t("billToSnapshotTitle")}</CardHeader>
+        <div className="text-sm space-y-1">
+          <div className="font-semibold">
+            {invoice.billingSnapshot.companyName}
+          </div>
+          <div>{invoice.billingSnapshot.streetAddress}</div>
+          <div>
+            {invoice.billingSnapshot.postalCode}{" "}
+            {invoice.billingSnapshot.city}
+          </div>
+          <div>{invoice.billingSnapshot.country}</div>
+          {invoice.billingSnapshot.vatNumber && (
+            <div className="text-text-muted">
+              VAT: {invoice.billingSnapshot.vatNumber}
+            </div>
+          )}
+          <div className="text-text-muted">
+            {invoice.billingSnapshot.billingEmail}
+          </div>
+        </div>
+      </Card>
+    </div>
+  );
+}
+
+function StatusPill({ status }: { status: InvoiceStatus }) {
+  const t = useTranslations("adminBilling");
+  const color =
+    status === "paid"
+      ? "bg-success/15 text-success"
+      : status === "overdue"
+        ? "bg-error/15 text-error"
+        : status === "void" || status === "uncollectible"
+          ? "bg-text-muted/15 text-text-muted"
+          : "bg-accent/15 text-accent";
+  return (
+    <span
+      className={`inline-block px-2 py-0.5 rounded text-xs font-medium ${color}`}
+    >
+      {t(`status_${status}`)}
+    </span>
+  );
+}

src/components/admin/billing/invoices-table.tsx

@@ -0,0 +1,183 @@
+"use client";
+
+import { useState, useEffect } from "react";
+import Link from "next/link";
+import { useTranslations } from "next-intl";
+import { Card } from "@/components/ui/card";
+import type { Invoice, InvoiceStatus } from "@/types";
+
+interface Props {
+  initialInvoices: Invoice[];
+}
+
+const STATUS_FILTERS: (InvoiceStatus | "all")[] = [
+  "all",
+  "open",
+  "overdue",
+  "paid",
+  "void",
+];
+
+/**
+ * Filterable invoice list. Filters live in URL-less local state
+ * (simpler than syncing to query string for a v1 admin tool); a
+ * page refresh resets.
+ *
+ * Re-fetching strategy: when filters change, hit the API directly
+ * rather than router.refresh() so we don't bounce the user through
+ * a full page render.
+ */
+export function InvoicesTable({ initialInvoices }: Props) {
+  const t = useTranslations("adminBilling");
+  const [statusFilter, setStatusFilter] = useState<InvoiceStatus | "all">("all");
+  const [monthFilter, setMonthFilter] = useState("");
+  const [invoices, setInvoices] = useState(initialInvoices);
+  const [busy, setBusy] = useState(false);
+
+  useEffect(() => {
+    // Effect runs after initial render too; skip refetch on mount
+    // when filters are at their defaults — the server already
+    // gave us the right initial set.
+    if (statusFilter === "all" && monthFilter === "") return;
+    let cancelled = false;
+    setBusy(true);
+    const params = new URLSearchParams();
+    if (statusFilter !== "all") params.set("status", statusFilter);
+    if (monthFilter) params.set("month", monthFilter);
+    fetch(`/api/admin/billing/invoices?${params}`)
+      .then((r) => r.json())
+      .then((data) => {
+        if (!cancelled) setInvoices(data);
+      })
+      .catch((e) => console.error("Failed to load invoices:", e))
+      .finally(() => {
+        if (!cancelled) setBusy(false);
+      });
+    return () => {
+      cancelled = true;
+    };
+  }, [statusFilter, monthFilter]);
+
+  return (
+    <div className="space-y-4">
+      <Card>
+        <div className="flex flex-wrap items-end gap-4">
+          <label className="block">
+            <span className="text-xs text-text-muted">{t("statusFilterLabel")}</span>
+            <select
+              value={statusFilter}
+              onChange={(e) =>
+                setStatusFilter(e.target.value as InvoiceStatus | "all")
+              }
+              className="mt-1 px-3 py-1.5 rounded-md border border-border bg-surface-2 text-sm"
+            >
+              {STATUS_FILTERS.map((s) => (
+                <option key={s} value={s}>
+                  {s === "all" ? t("allStatuses") : t(`status_${s}`)}
+                </option>
+              ))}
+            </select>
+          </label>
+          <label className="block">
+            <span className="text-xs text-text-muted">{t("monthFilterLabel")}</span>
+            <input
+              type="month"
+              value={monthFilter}
+              onChange={(e) => setMonthFilter(e.target.value)}
+              className="mt-1 px-3 py-1.5 rounded-md border border-border bg-surface-2 text-sm"
+            />
+          </label>
+          {monthFilter && (
+            <button
+              onClick={() => setMonthFilter("")}
+              className="text-xs text-text-muted hover:underline"
+            >
+              {t("clearFilter")}
+            </button>
+          )}
+          {busy && (
+            <span className="text-xs text-text-muted ml-auto">
+              {t("loading")}
+            </span>
+          )}
+        </div>
+      </Card>
+
+      <Card>
+        {invoices.length === 0 ? (
+          <p className="text-sm text-text-muted italic text-center py-6">
+            {t("noInvoicesFound")}
+          </p>
+        ) : (
+          <table className="w-full text-sm">
+            <thead className="text-xs text-text-muted text-left">
+              <tr>
+                <th className="pb-2">{t("invoiceNumberCol")}</th>
+                <th className="pb-2">{t("orgCol")}</th>
+                <th className="pb-2">{t("periodCol")}</th>
+                <th className="pb-2">{t("statusCol")}</th>
+                <th className="pb-2 text-right">{t("totalCol")}</th>
+                <th className="pb-2 text-right">{t("dueCol")}</th>
+              </tr>
+            </thead>
+            <tbody>
+              {invoices.map((inv) => (
+                <tr
+                  key={inv.id}
+                  className="border-t border-border hover:bg-surface-2 cursor-pointer"
+                >
+                  <td className="py-2">
+                    <Link
+                      href={`/admin/billing/invoices/${inv.id}`}
+                      className="font-mono text-xs hover:underline"
+                    >
+                      {inv.invoiceNumber}
+                    </Link>
+                  </td>
+                  <td className="py-2">
+                    <div className="text-xs">
+                      {inv.billingSnapshot.companyName || (
+                        <span className="font-mono">{inv.zitadelOrgId}</span>
+                      )}
+                    </div>
+                  </td>
+                  <td className="py-2 text-xs font-mono">
+                    {inv.periodStart.slice(0, 7)}
+                  </td>
+                  <td className="py-2">
+                    <StatusPill status={inv.status} />
+                  </td>
+                  <td className="py-2 text-right">
+                    CHF {inv.totalChf.toFixed(2)}
+                  </td>
+                  <td className="py-2 text-right text-xs text-text-muted">
+                    {inv.dueAt}
+                  </td>
+                </tr>
+              ))}
+            </tbody>
+          </table>
+        )}
+      </Card>
+    </div>
+  );
+}
+
+function StatusPill({ status }: { status: InvoiceStatus }) {
+  const t = useTranslations("adminBilling");
+  const color =
+    status === "paid"
+      ? "bg-success/15 text-success"
+      : status === "overdue"
+        ? "bg-error/15 text-error"
+        : status === "void" || status === "uncollectible"
+          ? "bg-text-muted/15 text-text-muted"
+          : "bg-accent/15 text-accent";
+  return (
+    <span
+      className={`inline-block px-2 py-0.5 rounded text-xs font-medium ${color}`}
+    >
+      {t(`status_${status}`)}
+    </span>
+  );
+}

src/components/admin/billing/pricing-editor.tsx

@@ -0,0 +1,391 @@
+"use client";
+
+import { useState } from "react";
+import { useRouter } from "next/navigation";
+import { useTranslations } from "next-intl";
+import { Card, CardHeader } from "@/components/ui/card";
+import type { PlatformPricing, SkillPricing } from "@/types";
+
+interface CatalogEntry {
+  id: string;
+  name: string;
+  category: string;
+}
+
+interface Props {
+  initialPricing: PlatformPricing;
+  initialSkillPricing: SkillPricing[];
+  catalog: CatalogEntry[];
+}
+
+/**
+ * Two-card layout:
+ *   1. Platform pricing form (4 inputs, save = PUT to /pricing).
+ *   2. Skill pricing table — list of priced skills, "Add skill"
+ *      picker below.
+ *
+ * No optimistic updates — every save round-trips and we
+ * router.refresh() afterwards so the server-side render stays
+ * the source of truth.
+ */
+export function PricingEditor({
+  initialPricing,
+  initialSkillPricing,
+  catalog,
+}: Props) {
+  const t = useTranslations("adminBilling");
+  const router = useRouter();
+
+  // -- Platform pricing form ----------------------------------------------
+  const [monthly, setMonthly] = useState(
+    String(initialPricing.tenantMonthlyFeeChf)
+  );
+  const [setup, setSetup] = useState(String(initialPricing.tenantSetupFeeChf));
+  const [threema, setThreema] = useState(
+    String(initialPricing.threemaMessageChf)
+  );
+  const [vat, setVat] = useState(String(initialPricing.vatRateChli));
+  const [savingPricing, setSavingPricing] = useState(false);
+  const [pricingError, setPricingError] = useState("");
+  const [pricingSaved, setPricingSaved] = useState(false);
+
+  const savePricing = async (e: React.FormEvent) => {
+    e.preventDefault();
+    setSavingPricing(true);
+    setPricingError("");
+    setPricingSaved(false);
+    try {
+      const res = await fetch("/api/admin/billing/pricing", {
+        method: "PUT",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify({
+          tenantMonthlyFeeChf: Number(monthly),
+          tenantSetupFeeChf: Number(setup),
+          threemaMessageChf: Number(threema),
+          vatRateChli: Number(vat),
+        }),
+      });
+      if (!res.ok) {
+        const j = await res.json().catch(() => ({}));
+        throw new Error(j.error || `HTTP ${res.status}`);
+      }
+      setPricingSaved(true);
+      router.refresh();
+    } catch (e: any) {
+      setPricingError(e.message);
+    } finally {
+      setSavingPricing(false);
+    }
+  };
+
+  // -- Skill pricing ------------------------------------------------------
+  // Server is authoritative — we don't keep an editable local copy of the
+  // table; instead each action posts to the API and we router.refresh().
+  const [newSkillId, setNewSkillId] = useState(
+    catalog.find((c) => c.category === "skill")?.id ?? ""
+  );
+  const [newSkillPrice, setNewSkillPrice] = useState("0.10");
+  const [addingSkill, setAddingSkill] = useState(false);
+  const [skillError, setSkillError] = useState("");
+
+  // Core upsert — used by both the "add new skill" form and the inline
+  // editor on existing rows. Kept event-free so callers can invoke it
+  // without synthesizing a fake form event.
+  const upsertSkillPrice = async (skillId: string, dailyPriceChf: number) => {
+    setAddingSkill(true);
+    setSkillError("");
+    try {
+      const res = await fetch("/api/admin/billing/skill-pricing", {
+        method: "PUT",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify({ skillId, dailyPriceChf }),
+      });
+      if (!res.ok) {
+        const j = await res.json().catch(() => ({}));
+        throw new Error(j.error || `HTTP ${res.status}`);
+      }
+      router.refresh();
+    } catch (e: any) {
+      setSkillError(e.message);
+    } finally {
+      setAddingSkill(false);
+    }
+  };
+
+  const onAddNewSkill = (e: React.FormEvent) => {
+    e.preventDefault();
+    if (!newSkillId) return;
+    void upsertSkillPrice(newSkillId, Number(newSkillPrice));
+  };
+
+  const deleteSkill = async (skillId: string) => {
+    if (!confirm(t("confirmDeleteSkillPrice", { skill: skillId }))) return;
+    setSkillError("");
+    try {
+      const res = await fetch(
+        `/api/admin/billing/skill-pricing/${encodeURIComponent(skillId)}`,
+        { method: "DELETE" }
+      );
+      if (!res.ok) {
+        const j = await res.json().catch(() => ({}));
+        throw new Error(j.error || `HTTP ${res.status}`);
+      }
+      router.refresh();
+    } catch (e: any) {
+      setSkillError(e.message);
+    }
+  };
+
+  // Catalog filtered to skill-kind entries for the picker, but keeping
+  // existing pricing rows even if they reference non-skill packages.
+  const skillCatalogOptions = catalog.filter((c) => c.category === "skill");
+  const catalogIndex = new Map(catalog.map((c) => [c.id, c]));
+  const pricedIds = new Set(initialSkillPricing.map((s) => s.skillId));
+
+  return (
+    <div className="space-y-6">
+      <Card>
+        <CardHeader>{t("platformPricingTitle")}</CardHeader>
+        <form onSubmit={savePricing} className="space-y-4">
+          <div className="grid grid-cols-2 gap-4">
+            <label className="block">
+              <span className="text-sm text-text-secondary">
+                {t("monthlyFeeLabel")} (CHF)
+              </span>
+              <input
+                type="number"
+                step="0.01"
+                min="0"
+                value={monthly}
+                onChange={(e) => setMonthly(e.target.value)}
+                className="mt-1 w-full px-3 py-2 rounded-md border border-border bg-surface-2 text-sm"
+                required
+              />
+            </label>
+            <label className="block">
+              <span className="text-sm text-text-secondary">
+                {t("setupFeeLabel")} (CHF)
+              </span>
+              <input
+                type="number"
+                step="0.01"
+                min="0"
+                value={setup}
+                onChange={(e) => setSetup(e.target.value)}
+                className="mt-1 w-full px-3 py-2 rounded-md border border-border bg-surface-2 text-sm"
+                required
+              />
+            </label>
+            <label className="block">
+              <span className="text-sm text-text-secondary">
+                {t("threemaMessageLabel")} (CHF)
+              </span>
+              <input
+                type="number"
+                step="0.0001"
+                min="0"
+                value={threema}
+                onChange={(e) => setThreema(e.target.value)}
+                className="mt-1 w-full px-3 py-2 rounded-md border border-border bg-surface-2 text-sm"
+                required
+              />
+            </label>
+            <label className="block">
+              <span className="text-sm text-text-secondary">
+                {t("vatRateLabel")} (%)
+              </span>
+              <input
+                type="number"
+                step="0.01"
+                min="0"
+                max="100"
+                value={vat}
+                onChange={(e) => setVat(e.target.value)}
+                className="mt-1 w-full px-3 py-2 rounded-md border border-border bg-surface-2 text-sm"
+                required
+              />
+            </label>
+          </div>
+          <div className="flex items-center gap-3">
+            <button
+              type="submit"
+              disabled={savingPricing}
+              className="px-4 py-2 rounded-md bg-accent text-white text-sm disabled:opacity-50"
+            >
+              {savingPricing ? t("saving") : t("save")}
+            </button>
+            {pricingSaved && (
+              <span className="text-sm text-success">{t("savedOk")}</span>
+            )}
+            {pricingError && (
+              <span className="text-sm text-error">{pricingError}</span>
+            )}
+          </div>
+        </form>
+      </Card>
+
+      <Card>
+        <CardHeader>{t("skillPricingTitle")}</CardHeader>
+        <p className="text-sm text-text-muted mb-4">{t("skillPricingDesc")}</p>
+
+        {initialSkillPricing.length > 0 ? (
+          <table className="w-full text-sm mb-6">
+            <thead className="text-xs text-text-muted text-left">
+              <tr>
+                <th className="pb-2">{t("skillCol")}</th>
+                <th className="pb-2 text-right">{t("dailyPriceCol")}</th>
+                <th className="pb-2 text-right">{t("actionsCol")}</th>
+              </tr>
+            </thead>
+            <tbody>
+              {initialSkillPricing.map((sp) => {
+                const entry = catalogIndex.get(sp.skillId);
+                return (
+                  <tr
+                    key={sp.skillId}
+                    className="border-t border-border align-top"
+                  >
+                    <td className="py-2">
+                      <div className="font-mono text-xs">{sp.skillId}</div>
+                      {entry && (
+                        <div className="text-xs text-text-muted">{entry.name}</div>
+                      )}
+                    </td>
+                    <td className="py-2 text-right">
+                      <InlinePriceEditor
+                        skillId={sp.skillId}
+                        initialPrice={sp.dailyPriceChf}
+                        onSave={(price) => upsertSkillPrice(sp.skillId, price)}
+                      />
+                    </td>
+                    <td className="py-2 text-right">
+                      <button
+                        onClick={() => deleteSkill(sp.skillId)}
+                        className="text-xs text-error hover:underline"
+                      >
+                        {t("remove")}
+                      </button>
+                    </td>
+                  </tr>
+                );
+              })}
+            </tbody>
+          </table>
+        ) : (
+          <p className="text-sm text-text-muted italic mb-4">{t("noSkillsPriced")}</p>
+        )}
+
+        <form onSubmit={onAddNewSkill} className="flex items-end gap-3">
+          <label className="flex-grow">
+            <span className="text-xs text-text-muted">{t("addSkillLabel")}</span>
+            <select
+              value={newSkillId}
+              onChange={(e) => setNewSkillId(e.target.value)}
+              className="mt-1 w-full px-3 py-2 rounded-md border border-border bg-surface-2 text-sm"
+            >
+              {skillCatalogOptions
+                .filter((c) => !pricedIds.has(c.id))
+                .map((c) => (
+                  <option key={c.id} value={c.id}>
+                    {c.name} ({c.id})
+                  </option>
+                ))}
+            </select>
+          </label>
+          <label className="w-32">
+            <span className="text-xs text-text-muted">
+              {t("dailyPriceLabel")} (CHF)
+            </span>
+            <input
+              type="number"
+              step="0.01"
+              min="0"
+              value={newSkillPrice}
+              onChange={(e) => setNewSkillPrice(e.target.value)}
+              className="mt-1 w-full px-3 py-2 rounded-md border border-border bg-surface-2 text-sm"
+            />
+          </label>
+          <button
+            type="submit"
+            disabled={addingSkill || !newSkillId}
+            className="px-4 py-2 rounded-md bg-accent text-white text-sm disabled:opacity-50"
+          >
+            {addingSkill ? t("saving") : t("add")}
+          </button>
+        </form>
+        {skillError && (
+          <p className="text-sm text-error mt-2">{skillError}</p>
+        )}
+      </Card>
+    </div>
+  );
+}
+
+/**
+ * Tiny inline editor for a single skill's daily price. Mounts in
+ * "view" mode showing the current value as a clickable badge;
+ * clicking turns it into an input + save/cancel buttons.
+ */
+function InlinePriceEditor({
+  skillId,
+  initialPrice,
+  onSave,
+}: {
+  skillId: string;
+  initialPrice: number;
+  onSave: (price: number) => Promise<void> | void;
+}) {
+  const t = useTranslations("adminBilling");
+  const [editing, setEditing] = useState(false);
+  const [value, setValue] = useState(String(initialPrice));
+  const [busy, setBusy] = useState(false);
+
+  if (!editing) {
+    return (
+      <button
+        onClick={() => setEditing(true)}
+        className="text-sm font-mono hover:underline"
+        title={t("clickToEdit")}
+      >
+        CHF {initialPrice.toFixed(2)}
+      </button>
+    );
+  }
+  return (
+    <span className="inline-flex items-center gap-1">
+      <input
+        type="number"
+        step="0.01"
+        min="0"
+        value={value}
+        onChange={(e) => setValue(e.target.value)}
+        className="w-20 px-2 py-1 text-sm border border-border bg-surface-2 rounded"
+        autoFocus
+      />
+      <button
+        onClick={async () => {
+          setBusy(true);
+          try {
+            await onSave(Number(value));
+            setEditing(false);
+          } finally {
+            setBusy(false);
+          }
+        }}
+        disabled={busy}
+        className="text-xs px-2 py-1 bg-accent text-white rounded"
+      >
+        {busy ? "…" : "✓"}
+      </button>
+      <button
+        onClick={() => {
+          setValue(String(initialPrice));
+          setEditing(false);
+        }}
+        className="text-xs px-2 py-1 border border-border rounded"
+      >
+        ✕
+      </button>
+    </span>
+  );
+}

src/components/channel-users/channel-users.tsx

@@ -3,6 +3,7 @@
 import { useState, useCallback } from "react";
 import { useTranslations } from "next-intl";
 import { useRouter } from "next/navigation";
+import { ThreemaQrModal } from "./threema-qr-modal";
 
 /** Maps channel IDs to the instructions for finding the user ID. */
 const CHANNEL_ID_HELP: Record<string, string> = {
@@ -51,6 +52,14 @@ export function ChannelUsers({
   const [inputValues, setInputValues] = useState<Record<string, string>>({});
   const [channelUsers, setChannelUsers] =
     useState<Record<string, string[]>>(initialChannelUsers);
+  /** Which channel's QR helper modal is open, if any. */
+  const [showQrFor, setShowQrFor] = useState<string | null>(null);
+  /**
+   * Tracks channels for which we've already auto-opened the helper
+   * modal on this page load. Prevents the modal from re-popping every
+   * time the user refocuses the input after dismissing it.
+   */
+  const [autoOpened, setAutoOpened] = useState<Set<string>>(() => new Set());
 
   const updateChannelUsers = useCallback(
     async (updated: Record<string, string[]>) => {
@@ -224,6 +233,39 @@ export function ChannelUsers({
               </span>
             </div>
 
+            {channel === "threema" && (
+              <div className="mb-3 flex flex-col sm:flex-row gap-3 items-start sm:items-center justify-between bg-accent/5 border border-accent/30 rounded-lg p-3">
+                <div className="flex items-start gap-2 flex-1">
+                  <svg
+                    className="w-4 h-4 mt-0.5 text-accent flex-shrink-0"
+                    fill="none"
+                    viewBox="0 0 24 24"
+                    stroke="currentColor"
+                    strokeWidth="2"
+                    aria-hidden="true"
+                  >
+                    <path
+                      strokeLinecap="round"
+                      strokeLinejoin="round"
+                      d="M3 4a1 1 0 011-1h4a1 1 0 011 1v4a1 1 0 01-1 1H4a1 1 0 01-1-1V4zM15 4a1 1 0 011-1h4a1 1 0 011 1v4a1 1 0 01-1 1h-4a1 1 0 01-1-1V4zM3 16a1 1 0 011-1h4a1 1 0 011 1v4a1 1 0 01-1 1H4a1 1 0 01-1-1v-4zM13 13h3v3h-3zM18 13h3v3h-3zM13 18h3v3h-3zM18 18h3v3h-3z"
+                    />
+                  </svg>
+                  <div className="text-xs text-text-secondary leading-relaxed">
+                    <p className="font-medium text-text-primary mb-0.5">
+                      {t("threemaSetup.bannerTitle")}
+                    </p>
+                    <p>{t("threemaSetup.bannerBody")}</p>
+                  </div>
+                </div>
+                <button
+                  onClick={() => setShowQrFor("threema")}
+                  className="self-stretch sm:self-auto px-3 py-2 text-xs font-medium bg-accent text-surface-0 rounded-lg hover:bg-accent-dim transition-colors whitespace-nowrap cursor-pointer shadow-lg shadow-accent/20"
+                >
+                  {t("threemaSetup.bannerButton")}
+                </button>
+              </div>
+            )}
+
             {helpKey && (
               <p className="text-xs text-text-secondary bg-surface-1 border border-border rounded-lg p-3 mb-3 whitespace-pre-line">
                 {t(helpKey)}
@@ -266,6 +308,17 @@ export function ChannelUsers({
                       [channel]: e.target.value,
                     }))
                   }
+                  onFocus={() => {
+                    // For threema specifically, open the QR helper the
+                    // first time the user clicks into the input on this
+                    // page load. We don't repeat after dismiss — the
+                    // "Show QR" button next to the channel name covers
+                    // re-opens on demand.
+                    if (channel === "threema" && !autoOpened.has("threema")) {
+                      setShowQrFor("threema");
+                      setAutoOpened((prev) => new Set(prev).add("threema"));
+                    }
+                  }}
                   onKeyDown={(e) => {
                     if (e.key === "Enter") handleAdd(channel);
                   }}
@@ -284,6 +337,11 @@ export function ChannelUsers({
           </div>
         );
       })}
+
+      <ThreemaQrModal
+        open={showQrFor === "threema"}
+        onClose={() => setShowQrFor(null)}
+      />
     </div>
   );
 }

src/components/channel-users/threema-qr-modal.tsx

@@ -0,0 +1,82 @@
+"use client";
+
+import { useTranslations } from "next-intl";
+import { useEffect } from "react";
+import { THREEMA_GATEWAY } from "@/lib/threema-gateway-config";
+
+interface ThreemaQrModalProps {
+  open: boolean;
+  onClose: () => void;
+}
+
+/**
+ * On-demand modal showing the QR for adding the assistant on Threema.
+ * Triggered by the "Show QR" button in the threema channel card and
+ * closes on overlay click, ESC, or the close button.
+ *
+ * Uses a plain <img> not next/image — image optimization adds nothing
+ * for a 57KB static PNG and removes a potential source of rendering
+ * bugs in the Next.js standalone build.
+ */
+export function ThreemaQrModal({ open, onClose }: ThreemaQrModalProps) {
+  const t = useTranslations("channelUsers.threemaSetup");
+
+  useEffect(() => {
+    if (!open) return;
+    function onKey(e: KeyboardEvent) {
+      if (e.key === "Escape") onClose();
+    }
+    window.addEventListener("keydown", onKey);
+    return () => window.removeEventListener("keydown", onKey);
+  }, [open, onClose]);
+
+  if (!open) return null;
+
+  return (
+    <div
+      onClick={onClose}
+      className="fixed inset-0 z-50 flex items-center justify-center bg-black/60 backdrop-blur-sm p-4"
+    >
+      <div
+        onClick={(e) => e.stopPropagation()}
+        className="w-full max-w-md bg-surface-1 border border-border rounded-2xl p-6 shadow-2xl shadow-black/40 space-y-4"
+      >
+        <div className="flex items-start justify-between">
+          <h3 className="text-base font-semibold text-text-primary">
+            {t("title")}
+          </h3>
+          <button
+            onClick={onClose}
+            className="text-text-muted hover:text-text-primary text-xl leading-none"
+            aria-label="Close"
+          >
+            ×
+          </button>
+        </div>
+
+        <div className="flex justify-center">
+          <div className="bg-white p-3 rounded-md">
+            {/* eslint-disable-next-line @next/next/no-img-element */}
+            <img
+              src={THREEMA_GATEWAY.qrCodePath}
+              alt={t("qrAlt", { gateway: THREEMA_GATEWAY.displayName })}
+              width={220}
+              height={220}
+              style={{ display: "block" }}
+            />
+          </div>
+        </div>
+
+        <p className="text-center text-xs text-text-muted font-mono">
+          {THREEMA_GATEWAY.displayName}
+        </p>
+
+        <ol className="list-decimal list-inside text-xs text-text-secondary space-y-1.5">
+          <li>{t("step1")}</li>
+          <li>{t("step2")}</li>
+          <li>{t("step3")}</li>
+        </ol>
+      </div>
+    </div>
+  );
+}

src/lib/billing-pdf.tsx

@@ -0,0 +1,655 @@
+/**
+ * Invoice PDF rendering via @react-pdf/renderer.
+ *
+ * Design notes:
+ *
+ * - The template is a React component (JSX). Visual tweaks happen
+ *   here — colors, fonts, spacing, layout. To swap branding later,
+ *   edit BRAND_* constants below or replace the logo component.
+ *
+ * - All strings are pulled from MESSAGES[locale]. To add a new
+ *   language, copy the German block and translate. Locale is
+ *   frozen on the invoice at issue time (invoices.locale column);
+ *   re-rendering a historical invoice always uses the same locale.
+ *
+ * - The logo is inlined as React-PDF SVG primitives so no asset
+ *   loading or font-bundle wrangling is needed. It travels with
+ *   the code.
+ *
+ * - VAT note (reverse charge etc.) is appended below the totals
+ *   block. Notes are localized in the same MESSAGES map.
+ *
+ * - QR-bill (Swiss bank transfer) is intentionally NOT included
+ *   in v1 — it lands in Phase 7. We render plain bank instructions
+ *   as text.
+ */
+
+import React from "react";
+import {
+  Document,
+  Page,
+  Text,
+  View,
+  StyleSheet,
+  Svg,
+  Polygon,
+  Polyline,
+  renderToBuffer,
+} from "@react-pdf/renderer";
+import type { Invoice, InvoiceLine, InvoiceLineKind } from "@/types";
+
+// ---------------------------------------------------------------------------
+// Brand constants — edit here to tweak look without touching layout
+// ---------------------------------------------------------------------------
+
+const BRAND = {
+  name: "PieCed IT",
+  // Primary emerald — matches the logo SVG fill (#10B981).
+  primary: "#10B981",
+  // Slightly darker emerald for headings.
+  primaryDark: "#0a8060",
+  textColor: "#1a1a1a",
+  mutedColor: "#666",
+  borderColor: "#d4d4d4",
+  // Issuer block — change these to your real legal info.
+  issuer: {
+    legalName: "PieCed IT",
+    addressLine1: "Cedric Mosimann",
+    addressLine2: "[Strasse Nr.]",
+    postalCity: "[PLZ] Basel",
+    country: "Switzerland",
+    email: "billing@pieced.ch",
+    web: "pieced.ch",
+    // Show "MWST-Nr. ..." on PDF when set.
+    vatNumber: null as string | null,
+    // Bank instructions — Phase 7 replaces with QR-bill.
+    bankName: "[Bank name]",
+    bankIban: "[CHxx xxxx xxxx xxxx xxxx x]",
+    bankBic: "[BIC]",
+  },
+};
+
+// ---------------------------------------------------------------------------
+// Localized strings
+// ---------------------------------------------------------------------------
+
+interface PdfStrings {
+  invoice: string;
+  invoiceNumber: string;
+  issueDate: string;
+  dueDate: string;
+  period: string;
+  billTo: string;
+  description: string;
+  quantity: string;
+  unitPrice: string;
+  amount: string;
+  subtotal: string;
+  vat: string;
+  total: string;
+  paymentInstructions: string;
+  paymentRefHint: string;
+  thankYou: string;
+  page: string;
+  of: string;
+  // Per-line-kind labels (used as section headers)
+  kindLabels: Record<InvoiceLineKind, string>;
+  // VAT compliance notes
+  reverseCharge: string;
+  exportNote: string;
+}
+
+const MESSAGES: Record<string, PdfStrings> = {
+  de: {
+    invoice: "Rechnung",
+    invoiceNumber: "Rechnungs-Nr.",
+    issueDate: "Rechnungsdatum",
+    dueDate: "Zahlbar bis",
+    period: "Abrechnungsperiode",
+    billTo: "Rechnungsempfänger",
+    description: "Beschreibung",
+    quantity: "Menge",
+    unitPrice: "Einzelpreis",
+    amount: "Betrag",
+    subtotal: "Zwischensumme",
+    vat: "MWST",
+    total: "Total",
+    paymentInstructions: "Zahlungsinformationen",
+    paymentRefHint: "Bitte verwenden Sie die Rechnungsnummer als Referenz.",
+    thankYou: "Vielen Dank für Ihr Vertrauen.",
+    page: "Seite",
+    of: "von",
+    kindLabels: {
+      tenant_monthly: "Monatliche Grundgebühr",
+      tenant_setup: "Einrichtungsgebühr",
+      ai_usage: "KI-Nutzung",
+      threema_messages: "Threema-Nachrichten",
+      skill_usage: "Skill-Nutzung",
+      adjustment: "Anpassung",
+    },
+    reverseCharge:
+      "Steuerschuldnerschaft des Leistungsempfängers (Reverse Charge).",
+    exportNote: "Dienstleistungsexport — keine MWST in Rechnung gestellt.",
+  },
+  en: {
+    invoice: "Invoice",
+    invoiceNumber: "Invoice no.",
+    issueDate: "Issue date",
+    dueDate: "Due date",
+    period: "Billing period",
+    billTo: "Bill to",
+    description: "Description",
+    quantity: "Qty",
+    unitPrice: "Unit price",
+    amount: "Amount",
+    subtotal: "Subtotal",
+    vat: "VAT",
+    total: "Total",
+    paymentInstructions: "Payment instructions",
+    paymentRefHint: "Please use the invoice number as the payment reference.",
+    thankYou: "Thank you for your business.",
+    page: "Page",
+    of: "of",
+    kindLabels: {
+      tenant_monthly: "Monthly fee",
+      tenant_setup: "Setup fee",
+      ai_usage: "AI usage",
+      threema_messages: "Threema messages",
+      skill_usage: "Skill usage",
+      adjustment: "Adjustment",
+    },
+    reverseCharge:
+      "Reverse charge — VAT to be accounted for by the recipient.",
+    exportNote: "Export of services — VAT not applicable.",
+  },
+  fr: {
+    invoice: "Facture",
+    invoiceNumber: "N° facture",
+    issueDate: "Date d'émission",
+    dueDate: "Échéance",
+    period: "Période de facturation",
+    billTo: "Destinataire",
+    description: "Description",
+    quantity: "Qté",
+    unitPrice: "Prix unitaire",
+    amount: "Montant",
+    subtotal: "Sous-total",
+    vat: "TVA",
+    total: "Total",
+    paymentInstructions: "Informations de paiement",
+    paymentRefHint: "Veuillez utiliser le n° de facture comme référence.",
+    thankYou: "Merci de votre confiance.",
+    page: "Page",
+    of: "sur",
+    kindLabels: {
+      tenant_monthly: "Forfait mensuel",
+      tenant_setup: "Frais de configuration",
+      ai_usage: "Utilisation IA",
+      threema_messages: "Messages Threema",
+      skill_usage: "Utilisation Skill",
+      adjustment: "Ajustement",
+    },
+    reverseCharge:
+      "Autoliquidation — TVA à acquitter par le destinataire.",
+    exportNote: "Exportation de services — TVA non applicable.",
+  },
+  it: {
+    invoice: "Fattura",
+    invoiceNumber: "N. fattura",
+    issueDate: "Data di emissione",
+    dueDate: "Scadenza",
+    period: "Periodo di fatturazione",
+    billTo: "Destinatario",
+    description: "Descrizione",
+    quantity: "Qtà",
+    unitPrice: "Prezzo unitario",
+    amount: "Importo",
+    subtotal: "Subtotale",
+    vat: "IVA",
+    total: "Totale",
+    paymentInstructions: "Istruzioni di pagamento",
+    paymentRefHint: "Si prega di utilizzare il n. di fattura come riferimento.",
+    thankYou: "Grazie per la fiducia.",
+    page: "Pagina",
+    of: "di",
+    kindLabels: {
+      tenant_monthly: "Canone mensile",
+      tenant_setup: "Spese di attivazione",
+      ai_usage: "Utilizzo IA",
+      threema_messages: "Messaggi Threema",
+      skill_usage: "Utilizzo Skill",
+      adjustment: "Rettifica",
+    },
+    reverseCharge:
+      "Inversione contabile — IVA a carico del destinatario.",
+    exportNote: "Esportazione di servizi — IVA non applicabile.",
+  },
+};
+
+function getStrings(locale: string): PdfStrings {
+  return MESSAGES[locale] ?? MESSAGES.de;
+}
+
+// ---------------------------------------------------------------------------
+// Stylesheet
+// ---------------------------------------------------------------------------
+
+const styles = StyleSheet.create({
+  page: {
+    paddingTop: 40,
+    paddingBottom: 60,
+    paddingHorizontal: 40,
+    fontSize: 9,
+    color: BRAND.textColor,
+    lineHeight: 1.4,
+  },
+  headerRow: {
+    flexDirection: "row",
+    justifyContent: "space-between",
+    alignItems: "flex-start",
+    marginBottom: 28,
+  },
+  logoWrap: { width: 60, height: 90 },
+  issuerBlock: { textAlign: "right", fontSize: 8.5, color: BRAND.mutedColor },
+  issuerName: { fontSize: 11, color: BRAND.primaryDark, marginBottom: 2 },
+  invoiceTitle: { fontSize: 22, color: BRAND.primaryDark, marginBottom: 8 },
+  metaTable: {
+    flexDirection: "row",
+    justifyContent: "space-between",
+    marginBottom: 20,
+  },
+  metaCol: { flexGrow: 1, marginRight: 16 },
+  metaLabel: { color: BRAND.mutedColor, fontSize: 8, marginBottom: 2 },
+  metaValue: { fontSize: 10, marginBottom: 6 },
+  billToBlock: {
+    marginBottom: 24,
+    padding: 10,
+    backgroundColor: "#f7f7f5",
+    borderLeftWidth: 3,
+    borderLeftColor: BRAND.primary,
+  },
+  billToLabel: { fontSize: 8, color: BRAND.mutedColor, marginBottom: 4 },
+  billToName: { fontSize: 11, marginBottom: 2 },
+  table: { marginBottom: 14 },
+  tableHeader: {
+    flexDirection: "row",
+    backgroundColor: BRAND.primaryDark,
+    color: "#ffffff",
+    paddingVertical: 5,
+    paddingHorizontal: 6,
+    fontSize: 8.5,
+  },
+  tableRow: {
+    flexDirection: "row",
+    borderBottomWidth: 0.5,
+    borderBottomColor: BRAND.borderColor,
+    paddingVertical: 5,
+    paddingHorizontal: 6,
+  },
+  // Column widths (sum ≈ 100%)
+  colDesc: { width: "52%" },
+  colQty: { width: "12%", textAlign: "right" },
+  colUnit: { width: "16%", textAlign: "right" },
+  colAmt: { width: "20%", textAlign: "right" },
+  totalsBlock: {
+    alignSelf: "flex-end",
+    width: "45%",
+    marginTop: 8,
+  },
+  totalsRow: {
+    flexDirection: "row",
+    justifyContent: "space-between",
+    paddingVertical: 3,
+  },
+  totalsLabel: { color: BRAND.mutedColor },
+  totalsValue: { textAlign: "right" },
+  totalsGrand: {
+    flexDirection: "row",
+    justifyContent: "space-between",
+    borderTopWidth: 1,
+    borderTopColor: BRAND.primaryDark,
+    paddingTop: 6,
+    marginTop: 4,
+  },
+  totalsGrandLabel: { color: BRAND.primaryDark, fontSize: 11 },
+  totalsGrandValue: { color: BRAND.primaryDark, fontSize: 11, textAlign: "right" },
+  noteBox: {
+    marginTop: 18,
+    padding: 8,
+    backgroundColor: "#fff8e7",
+    borderLeftWidth: 2,
+    borderLeftColor: "#d4a017",
+    fontSize: 8.5,
+  },
+  paymentBlock: {
+    marginTop: 24,
+    paddingTop: 12,
+    borderTopWidth: 0.5,
+    borderTopColor: BRAND.borderColor,
+  },
+  paymentTitle: { fontSize: 10, color: BRAND.primaryDark, marginBottom: 6 },
+  paymentLine: { fontSize: 9, marginBottom: 1 },
+  footer: {
+    position: "absolute",
+    bottom: 24,
+    left: 40,
+    right: 40,
+    flexDirection: "row",
+    justifyContent: "space-between",
+    fontSize: 7.5,
+    color: BRAND.mutedColor,
+    borderTopWidth: 0.5,
+    borderTopColor: BRAND.borderColor,
+    paddingTop: 8,
+  },
+});
+
+// ---------------------------------------------------------------------------
+// Logo — inlined SVG primitives
+// ---------------------------------------------------------------------------
+
+/**
+ * PieCed honeycomb logo. Re-renders the same 6-hex glyph as the
+ * portal's `public/pieced-logo.svg` using React-PDF's SVG support.
+ * Width/height are independent of the original viewBox so we can
+ * scale it without losing stroke quality.
+ */
+const Logo = ({ size = 60 }: { size?: number }) => (
+  <Svg width={size} height={size * (106 / 70)} viewBox="0 0 70 106">
+    {/* H1 solid */}
+    <Polygon
+      points="38.5,22.69 31.5,10.566 17.5,10.566 10.5,22.69 17.5,34.814 31.5,34.814"
+      fill="#10B981"
+      stroke="#10B981"
+      strokeWidth={1.6}
+    />
+    {/* H2 outline */}
+    <Polygon
+      points="59.5,34.814 52.5,22.69 38.5,22.69 31.5,34.814 38.5,46.938 52.5,46.938"
+      fill="none"
+      stroke="#10B981"
+      strokeWidth={1.8}
+    />
+    {/* H3 outline */}
+    <Polygon
+      points="38.5,46.938 31.5,34.814 17.5,34.814 10.5,46.938 17.5,59.062 31.5,59.062"
+      fill="none"
+      stroke="#10B981"
+      strokeWidth={1.8}
+    />
+    {/* H4 solid */}
+    <Polygon
+      points="59.5,59.062 52.5,46.938 38.5,46.938 31.5,59.062 38.5,71.186 52.5,71.186"
+      fill="#10B981"
+      stroke="#10B981"
+      strokeWidth={1.6}
+    />
+    {/* H5 partial */}
+    <Polyline
+      points="31.5,83.31 38.5,71.186 31.5,59.062 17.5,59.062 10.5,71.186"
+      fill="none"
+      stroke="#10B981"
+      strokeWidth={1.8}
+    />
+    {/* H6 partial */}
+    <Polyline
+      points="59.5,83.31 52.5,71.186 38.5,71.186 31.5,83.31 38.5,95.434"
+      fill="none"
+      stroke="#10B981"
+      strokeWidth={1.8}
+    />
+  </Svg>
+);
+
+// ---------------------------------------------------------------------------
+// Helpers
+// ---------------------------------------------------------------------------
+
+function fmtChf(n: number, decimals: number = 2): string {
+  // Swiss thousands separator + decimal point: 1'234.56
+  const fixed = n.toFixed(decimals);
+  const [intPart, decPart] = fixed.split(".");
+  const withSep = intPart.replace(/\B(?=(\d{3})+(?!\d))/g, "'");
+  return decPart ? `${withSep}.${decPart}` : withSep;
+}
+
+function fmtDate(iso: string, locale: string): string {
+  // Parse YYYY-MM-DD as a calendar date (no timezone shifts).
+  // For PDF rendering we want a stable representation regardless
+  // of server timezone.
+  const [y, m, d] = iso.split("T")[0].split("-").map(Number);
+  // Locale-specific date format
+  if (locale === "en") {
+    return new Date(Date.UTC(y, m - 1, d)).toLocaleDateString("en-US", {
+      year: "numeric",
+      month: "short",
+      day: "numeric",
+      timeZone: "UTC",
+    });
+  }
+  // DE/FR/IT default: DD.MM.YYYY
+  return `${String(d).padStart(2, "0")}.${String(m).padStart(2, "0")}.${y}`;
+}
+
+// ---------------------------------------------------------------------------
+// Document
+// ---------------------------------------------------------------------------
+
+interface InvoicePdfProps {
+  invoice: Invoice;
+  lines: InvoiceLine[];
+}
+
+const InvoicePdf: React.FC<InvoicePdfProps> = ({ invoice, lines }) => {
+  const s = getStrings(invoice.locale);
+  const snap = invoice.billingSnapshot;
+
+  // Group lines by tenant for visual separation. Lines without a
+  // tenant_name (org-level adjustments) go to the end.
+  const linesByTenant = new Map<string | null, InvoiceLine[]>();
+  for (const ln of lines) {
+    const key = ln.tenantName;
+    if (!linesByTenant.has(key)) linesByTenant.set(key, []);
+    linesByTenant.get(key)!.push(ln);
+  }
+  const tenantOrder = [...linesByTenant.keys()].sort((a, b) => {
+    if (a === null) return 1;
+    if (b === null) return -1;
+    return a.localeCompare(b);
+  });
+
+  // VAT note: pick the right localized note based on rate + address.
+  // Zero rate + EU country = reverse charge; zero rate + other = export.
+  let vatNote: string | null = null;
+  if (invoice.vatRate === 0) {
+    const country = (snap.country || "").toUpperCase();
+    const isEu = [
+      "AT","BE","BG","HR","CY","CZ","DK","EE","FI","FR","DE","GR","HU",
+      "IE","IT","LV","LT","LU","MT","NL","PL","PT","RO","SK","SI","ES","SE",
+    ].includes(country);
+    vatNote = isEu ? s.reverseCharge : s.exportNote;
+  }
+
+  return (
+    <Document title={`${s.invoice} ${invoice.invoiceNumber}`}>
+      <Page size="A4" style={styles.page}>
+        {/* Header: logo left, issuer right */}
+        <View style={styles.headerRow}>
+          <View style={styles.logoWrap}>
+            <Logo size={60} />
+          </View>
+          <View style={styles.issuerBlock}>
+            <Text style={styles.issuerName}>{BRAND.issuer.legalName}</Text>
+            <Text>{BRAND.issuer.addressLine1}</Text>
+            <Text>{BRAND.issuer.addressLine2}</Text>
+            <Text>{BRAND.issuer.postalCity}</Text>
+            <Text>{BRAND.issuer.country}</Text>
+            <Text>{BRAND.issuer.email}</Text>
+            {BRAND.issuer.vatNumber && (
+              <Text>MWST-Nr. {BRAND.issuer.vatNumber}</Text>
+            )}
+          </View>
+        </View>
+
+        <Text style={styles.invoiceTitle}>{s.invoice}</Text>
+
+        {/* Meta row: 3 columns */}
+        <View style={styles.metaTable}>
+          <View style={styles.metaCol}>
+            <Text style={styles.metaLabel}>{s.invoiceNumber}</Text>
+            <Text style={styles.metaValue}>{invoice.invoiceNumber}</Text>
+            <Text style={styles.metaLabel}>{s.issueDate}</Text>
+            <Text style={styles.metaValue}>
+              {fmtDate(invoice.issuedAt, invoice.locale)}
+            </Text>
+          </View>
+          <View style={styles.metaCol}>
+            <Text style={styles.metaLabel}>{s.period}</Text>
+            <Text style={styles.metaValue}>
+              {fmtDate(invoice.periodStart, invoice.locale)} —{" "}
+              {fmtDate(invoice.periodEnd, invoice.locale)}
+            </Text>
+            <Text style={styles.metaLabel}>{s.dueDate}</Text>
+            <Text style={styles.metaValue}>
+              {fmtDate(invoice.dueAt, invoice.locale)}
+            </Text>
+          </View>
+        </View>
+
+        {/* Bill-to */}
+        <View style={styles.billToBlock}>
+          <Text style={styles.billToLabel}>{s.billTo}</Text>
+          <Text style={styles.billToName}>{snap.companyName}</Text>
+          <Text>{snap.streetAddress}</Text>
+          <Text>
+            {snap.postalCode} {snap.city}
+          </Text>
+          <Text>{snap.country}</Text>
+          {snap.vatNumber && <Text>VAT: {snap.vatNumber}</Text>}
+          <Text>{snap.billingEmail}</Text>
+        </View>
+
+        {/* Line items table */}
+        <View style={styles.table}>
+          <View style={styles.tableHeader}>
+            <Text style={styles.colDesc}>{s.description}</Text>
+            <Text style={styles.colQty}>{s.quantity}</Text>
+            <Text style={styles.colUnit}>{s.unitPrice}</Text>
+            <Text style={styles.colAmt}>{s.amount} (CHF)</Text>
+          </View>
+          {tenantOrder.map((tenantKey) => {
+            const tenantLines = linesByTenant.get(tenantKey)!;
+            return (
+              <View key={tenantKey ?? "_org"}>
+                {tenantKey && (
+                  <View
+                    style={{
+                      paddingVertical: 4,
+                      paddingHorizontal: 6,
+                      backgroundColor: "#f0f9f4",
+                    }}
+                  >
+                    <Text style={{ fontSize: 9, color: BRAND.primaryDark }}>
+                      {tenantKey}
+                    </Text>
+                  </View>
+                )}
+                {tenantLines.map((ln) => (
+                  <View key={ln.id} style={styles.tableRow}>
+                    <Text style={styles.colDesc}>{ln.description}</Text>
+                    <Text style={styles.colQty}>
+                      {ln.quantity}
+                      {ln.unitLabel ? ` ${ln.unitLabel}` : ""}
+                    </Text>
+                    <Text style={styles.colUnit}>{fmtChf(ln.unitPriceChf, 5)}</Text>
+                    <Text style={styles.colAmt}>{fmtChf(ln.amountChf)}</Text>
+                  </View>
+                ))}
+              </View>
+            );
+          })}
+        </View>
+
+        {/* Totals */}
+        <View style={styles.totalsBlock}>
+          <View style={styles.totalsRow}>
+            <Text style={styles.totalsLabel}>{s.subtotal}</Text>
+            <Text style={styles.totalsValue}>{fmtChf(invoice.subtotalChf)}</Text>
+          </View>
+          <View style={styles.totalsRow}>
+            <Text style={styles.totalsLabel}>
+              {s.vat} ({invoice.vatRate.toFixed(2)}%)
+            </Text>
+            <Text style={styles.totalsValue}>{fmtChf(invoice.vatAmountChf)}</Text>
+          </View>
+          <View style={styles.totalsGrand}>
+            <Text style={styles.totalsGrandLabel}>
+              {s.total} (CHF)
+            </Text>
+            <Text style={styles.totalsGrandValue}>{fmtChf(invoice.totalChf)}</Text>
+          </View>
+        </View>
+
+        {vatNote && (
+          <View style={styles.noteBox}>
+            <Text>{vatNote}</Text>
+          </View>
+        )}
+
+        {/* Payment instructions */}
+        <View style={styles.paymentBlock}>
+          <Text style={styles.paymentTitle}>{s.paymentInstructions}</Text>
+          <Text style={styles.paymentLine}>{BRAND.issuer.legalName}</Text>
+          <Text style={styles.paymentLine}>{BRAND.issuer.bankName}</Text>
+          <Text style={styles.paymentLine}>IBAN: {BRAND.issuer.bankIban}</Text>
+          <Text style={styles.paymentLine}>BIC: {BRAND.issuer.bankBic}</Text>
+          <Text style={[styles.paymentLine, { marginTop: 6, color: BRAND.mutedColor }]}>
+            {s.paymentRefHint}
+          </Text>
+          <Text style={[styles.paymentLine, { marginTop: 12, color: BRAND.primaryDark }]}>
+            {s.thankYou}
+          </Text>
+        </View>
+
+        {/* Footer with page numbers.
+            react-pdf API quirks (verified against build errors):
+              - The `render` callback on <View> only exposes
+                `{ pageNumber, subPageNumber }` — no totalPages.
+                Only <Text> gets `{ pageNumber, totalPages,
+                subPageNumber, subPageTotalPages }`.
+              - <Text>'s render callback must return a STRING
+                (or array of strings), not JSX. */}
+        <View style={styles.footer} fixed>
+          <Text>
+            {BRAND.issuer.legalName} · {BRAND.issuer.web} · {BRAND.issuer.email}
+          </Text>
+          <Text
+            render={({ pageNumber, totalPages }) =>
+              `${s.page} ${pageNumber} ${s.of} ${totalPages}`
+            }
+            fixed
+          />
+        </View>
+      </Page>
+    </Document>
+  );
+};
+
+// ---------------------------------------------------------------------------
+// Public API
+// ---------------------------------------------------------------------------
+
+/**
+ * Render an invoice to a PDF buffer. Caller stores the buffer in
+ * `invoices.pdf_data` (bytea). Side-effect-free; can be called
+ * outside a DB transaction.
+ *
+ * Typical runtime is 50–200ms on a typical invoice with a dozen
+ * lines.
+ */
+export async function renderInvoicePdf(
+  invoice: Invoice,
+  lines: InvoiceLine[]
+): Promise<Buffer> {
+  return renderToBuffer(<InvoicePdf invoice={invoice} lines={lines} />);
+}

src/lib/billing.ts

@@ -0,0 +1,743 @@
+/**
+ * Billing computation pipeline.
+ *
+ * Public entry points:
+ *   - computeInvoiceDraft({ zitadelOrgId, year, month, locale? })
+ *     Builds an in-memory InvoiceDraft from the live signals
+ *     (LiteLLM spend, Threema relay usage, tenant skill events,
+ *     lifecycle, suspension). Does NOT persist or render the PDF.
+ *
+ *   - generateInvoice({ zitadelOrgId, year, month, locale?, dryRun? })
+ *     Calls computeInvoiceDraft, renders the PDF, persists the
+ *     invoice transactionally. Returns the persisted Invoice
+ *     (or the draft if dryRun=true).
+ *
+ * Design choices:
+ *
+ * - All compute is over UTC calendar days. "Active during day D"
+ *   means the tenant existed and was not fully suspended at some
+ *   moment in [D 00:00 UTC, D+1 00:00 UTC). This matches the
+ *   skill billing rule ("same-day toggle = 1 day") for monthly
+ *   fee proration too.
+ *
+ * - Computation is independent of persistence. Callers can preview
+ *   without committing (the admin generate form does this on first
+ *   click), and the same compute path is reused when committing.
+ *
+ * - The compute path collects warnings rather than throwing on
+ *   recoverable issues (missing LiteLLM team for a tenant, etc.).
+ *   The UI surfaces these to the admin before they confirm.
+ */
+
+import type {
+  Invoice,
+  InvoiceBillingSnapshot,
+  InvoiceDraft,
+  InvoiceLine,
+  InvoiceLineKind,
+  InvoicePaymentMethod,
+  PiecedTenant,
+  PlatformPricing,
+  SkillPricing,
+  TenantBillingLifecycle,
+  TenantSkillEvent,
+  TenantSuspensionEvent,
+} from "@/types";
+import {
+  createInvoice,
+  getInvoiceById,
+  getOrgBilling,
+  getOrgBillingConfig,
+  getPlatformPricing,
+  getTenantBillingLifecycle,
+  listSkillEventsForTenant,
+  listSkillPricing,
+  listSuspensionEventsForTenant,
+  tenantHasSetupFeeBilled,
+  updateInvoicePdf,
+} from "./db";
+import { listTenants } from "./k8s";
+import { getTeamSpendLogsV2 } from "./litellm";
+import { getUsage as getThreemaUsage } from "./threema-relay";
+import { renderInvoicePdf } from "./billing-pdf";
+
+// ---------------------------------------------------------------------------
+// Period helpers
+// ---------------------------------------------------------------------------
+
+/**
+ * Returns the [periodStart, periodEnd] inclusive calendar dates for
+ * the given month, plus the count of days in the month.
+ *
+ * Dates returned as ISO `YYYY-MM-DD` strings (no time). Convertible
+ * to UTC midnight via `new Date(`${date}T00:00:00Z`)`.
+ */
+export function monthBounds(year: number, month: number): {
+  periodStart: string;
+  periodEnd: string;
+  daysInMonth: number;
+} {
+  if (month < 1 || month > 12) throw new Error(`Invalid month: ${month}`);
+  const start = new Date(Date.UTC(year, month - 1, 1));
+  // Day 0 of next month = last day of this month
+  const end = new Date(Date.UTC(year, month, 0));
+  return {
+    periodStart: start.toISOString().split("T")[0],
+    periodEnd: end.toISOString().split("T")[0],
+    daysInMonth: end.getUTCDate(),
+  };
+}
+
+function isoDate(d: Date): string {
+  return d.toISOString().split("T")[0];
+}
+
+function dueDate(periodEnd: string, netDays: number = 30): string {
+  // due_at = period_end + netDays
+  const d = new Date(`${periodEnd}T00:00:00Z`);
+  d.setUTCDate(d.getUTCDate() + netDays);
+  return isoDate(d);
+}
+
+// ---------------------------------------------------------------------------
+// Day-set computation (calendar-day model, UTC)
+// ---------------------------------------------------------------------------
+
+/**
+ * Iterates UTC calendar days in [periodStart, periodEnd] inclusive.
+ * Yields { date: 'YYYY-MM-DD', dayStartMs, dayEndMs } where dayEnd
+ * is exclusive (next-day-midnight UTC).
+ */
+function* iterDays(periodStart: string, periodEnd: string) {
+  const start = new Date(`${periodStart}T00:00:00Z`).getTime();
+  const end = new Date(`${periodEnd}T00:00:00Z`).getTime();
+  for (let t = start; t <= end; t += 86_400_000) {
+    yield {
+      date: isoDate(new Date(t)),
+      dayStartMs: t,
+      dayEndMs: t + 86_400_000,
+    };
+  }
+}
+
+/**
+ * Was the tenant "running" (created, not deleted, not suspended) at
+ * any moment in the half-open interval [dayStartMs, dayEndMs)?
+ *
+ * Inputs: tenant lifecycle and the timeline of suspension events
+ * sorted ascending by occurredAt.
+ *
+ * The state-at-day-start is reconstructed from suspension events
+ * BEFORE the day. If the count of suspension events before the day
+ * is odd, the tenant was suspended at day start (because we record
+ * suspend then resume, so an odd prefix-count means the last
+ * recorded transition is "suspended"). This is robust as long as
+ * events are correctly ordered.
+ *
+ * Actually we use the actual event kinds from the events list,
+ * not the parity heuristic — the heuristic is documentation for
+ * intuition.
+ */
+function activeDuringDay(
+  lifecycle: TenantBillingLifecycle,
+  suspensionEvents: TenantSuspensionEvent[],
+  dayStartMs: number,
+  dayEndMs: number
+): boolean {
+  // Lifecycle gate: tenant must have existed during some part of the day.
+  const createdMs = new Date(lifecycle.createdAt).getTime();
+  const deletedMs = lifecycle.deletedAt
+    ? new Date(lifecycle.deletedAt).getTime()
+    : Infinity;
+  if (createdMs >= dayEndMs) return false;
+  if (deletedMs <= dayStartMs) return false;
+  // Effective existence window within this day
+  const existsFrom = Math.max(createdMs, dayStartMs);
+  const existsTo = Math.min(deletedMs, dayEndMs);
+  if (existsFrom >= existsTo) return false;
+
+  // Determine suspended state at existsFrom by replaying events.
+  // Initial state at lifecycle.createdAt is 'running' (we don't
+  // record an explicit 'created → running' event; this is the
+  // implicit baseline).
+  let suspended = false;
+  for (const e of suspensionEvents) {
+    const ts = new Date(e.occurredAt).getTime();
+    if (ts > existsFrom) break;
+    suspended = e.eventKind === "suspended";
+  }
+
+  // Walk events from existsFrom to existsTo. If at any moment the
+  // tenant is running, the day counts.
+  if (!suspended) return true;
+  for (const e of suspensionEvents) {
+    const ts = new Date(e.occurredAt).getTime();
+    if (ts <= existsFrom) continue;
+    if (ts >= existsTo) break;
+    if (e.eventKind === "resumed") return true;
+  }
+  return false;
+}
+
+/**
+ * Was the skill 'enabled' at any moment in the day?
+ *
+ * Same shape as activeDuringDay but driven by skill events instead
+ * of suspension events.
+ *
+ * Important: callers must include events from before periodStart in
+ * `prevState` (state at day start), since a skill enabled three
+ * months ago and never disabled has no events in the billing
+ * window but is still enabled.
+ */
+function skillActiveDuringDay(
+  events: TenantSkillEvent[],
+  initiallyEnabled: boolean,
+  dayStartMs: number,
+  dayEndMs: number
+): boolean {
+  let enabled = initiallyEnabled;
+  // First, replay events that occurred AT OR BEFORE dayStartMs to
+  // get the state at day start.
+  for (const e of events) {
+    const ts = new Date(e.occurredAt).getTime();
+    if (ts > dayStartMs) break;
+    enabled = e.eventKind === "enabled";
+  }
+  if (enabled) return true;
+  // Walk events in [dayStart, dayEnd). If any 'enabled' event
+  // appears, the day counts.
+  for (const e of events) {
+    const ts = new Date(e.occurredAt).getTime();
+    if (ts <= dayStartMs) continue;
+    if (ts >= dayEndMs) break;
+    if (e.eventKind === "enabled") return true;
+  }
+  return false;
+}
+
+// ---------------------------------------------------------------------------
+// Rounding
+// ---------------------------------------------------------------------------
+
+/** Round to 2dp, half-up. */
+function round2(n: number): number {
+  return Math.round(n * 100) / 100;
+}
+
+// ---------------------------------------------------------------------------
+// VAT logic
+// ---------------------------------------------------------------------------
+
+const EU_COUNTRIES = new Set([
+  "AT", "BE", "BG", "HR", "CY", "CZ", "DK", "EE", "FI", "FR",
+  "DE", "GR", "HU", "IE", "IT", "LV", "LT", "LU", "MT", "NL",
+  "PL", "PT", "RO", "SK", "SI", "ES", "SE",
+]);
+
+/**
+ * Determine VAT rate from billing address and the platform default.
+ * See README for the legal interpretation; this implements the
+ * defaults you confirmed:
+ *
+ *   - CH or LI:        platform_pricing.vat_rate_chli (default 8.10)
+ *   - EU + VAT number: 0% (reverse charge — B2B)
+ *   - EU without VAT:  CH MWST (B2C consumer, we charge our rate)
+ *   - other:           0% (export of services)
+ */
+function vatRateForAddress(
+  snapshot: InvoiceBillingSnapshot,
+  platformPricing: PlatformPricing
+): { rate: number; note: string | null } {
+  const country = snapshot.country?.toUpperCase().trim() ?? "";
+  if (country === "CH" || country === "LI") {
+    return { rate: platformPricing.vatRateChli, note: null };
+  }
+  if (EU_COUNTRIES.has(country)) {
+    if (snapshot.vatNumber && snapshot.vatNumber.trim().length > 0) {
+      return {
+        rate: 0,
+        note:
+          "Steuerschuldnerschaft des Leistungsempfängers / Reverse charge — VAT to be accounted for by the recipient.",
+      };
+    }
+    return { rate: platformPricing.vatRateChli, note: null };
+  }
+  return { rate: 0, note: "Export of services — VAT not applicable." };
+}
+
+// ---------------------------------------------------------------------------
+// Locale default
+// ---------------------------------------------------------------------------
+
+/**
+ * Pick a default invoice locale from the billing country. Admins
+ * can override at generation time. We default to German for
+ * CH/LI/AT/DE; French for FR/BE/LU; Italian for IT; English
+ * otherwise.
+ */
+export function defaultLocaleForCountry(country: string): string {
+  const c = (country || "").toUpperCase().trim();
+  if (["CH", "LI", "AT", "DE"].includes(c)) return "de";
+  if (["FR", "BE", "LU"].includes(c)) return "fr";
+  if (c === "IT") return "it";
+  return "en";
+}
+
+// ---------------------------------------------------------------------------
+// Tenant signal collectors
+// ---------------------------------------------------------------------------
+
+/**
+ * Sum AI usage spend for a tenant over the billing period via
+ * LiteLLM. Returns the CHF total (already in CHF — LiteLLM stores
+ * costs after the platform's USD→CHF conversion) and the request
+ * count for the metadata.
+ *
+ * Tolerates missing litellmTeamId on the tenant: such tenants are
+ * skipped and the warning is surfaced upstream.
+ */
+async function collectAiUsage(
+  tenant: PiecedTenant,
+  periodStart: string,
+  periodEnd: string
+): Promise<{ spendChf: number; requestCount: number } | null> {
+  const teamId = tenant.status?.litellmTeamId;
+  if (!teamId) return null;
+  const keyAlias = tenant.metadata.name;
+  let spendChf = 0;
+  let requestCount = 0;
+  let page = 1;
+  // 50-page cap matches the existing usage route's defensive cap.
+  while (page <= 50) {
+    const result = await getTeamSpendLogsV2(
+      teamId,
+      periodStart,
+      periodEnd,
+      page,
+      100,
+      keyAlias
+    );
+    const rows: any[] = result.data ?? [];
+    for (const r of rows) {
+      spendChf += Number(r.spend ?? 0);
+      requestCount += 1;
+    }
+    if (page >= (result.total_pages || 1)) break;
+    page++;
+  }
+  return { spendChf: round2(spendChf), requestCount };
+}
+
+/**
+ * Sum Threema messages (in + out) for the tenant over the period.
+ * Returns null if the relay refuses or the tenant has no Threema
+ * package — billing is skipped silently in that case.
+ */
+async function collectThreemaUsage(
+  tenant: PiecedTenant,
+  periodStart: string,
+  periodEnd: string
+): Promise<{ inCount: number; outCount: number } | null> {
+  const packages = tenant.spec.packages ?? [];
+  if (!packages.includes("threema")) return null;
+  // threema-relay.getUsage takes Date params, not strings, and
+  // returns a discriminated RelayResult<UsageBreakdown> — the
+  // `ok` discriminant must be checked before reading the totals.
+  // Period end is exclusive in the relay's API; pass the next-day
+  // midnight UTC to capture the full last day of the period.
+  const from = new Date(`${periodStart}T00:00:00Z`);
+  const to = new Date(`${periodEnd}T00:00:00Z`);
+  to.setUTCDate(to.getUTCDate() + 1);
+  const result = await getThreemaUsage(tenant.metadata.name, from, to).catch(
+    () => null
+  );
+  if (!result || !result.ok) return null;
+  return {
+    inCount: Number(result.totals?.in ?? 0),
+    outCount: Number(result.totals?.out ?? 0),
+  };
+}
+
+// ---------------------------------------------------------------------------
+// Per-tenant line builders
+// ---------------------------------------------------------------------------
+
+async function buildTenantLines(opts: {
+  tenant: PiecedTenant;
+  periodStart: string;
+  periodEnd: string;
+  daysInMonth: number;
+  platformPricing: PlatformPricing;
+  skillPricing: SkillPricing[];
+  warnings: string[];
+  displayOrderOffset: number;
+}): Promise<Omit<InvoiceLine, "id" | "invoiceId">[]> {
+  const {
+    tenant,
+    periodStart,
+    periodEnd,
+    daysInMonth,
+    platformPricing,
+    skillPricing,
+    warnings,
+  } = opts;
+  let displayOrder = opts.displayOrderOffset;
+  const tenantName = tenant.metadata.name;
+  const lines: Omit<InvoiceLine, "id" | "invoiceId">[] = [];
+
+  // Lifecycle & suspension events — required for monthly proration.
+  const lifecycle = await getTenantBillingLifecycle(tenantName);
+  if (!lifecycle) {
+    warnings.push(
+      `Tenant "${tenantName}" has no billing lifecycle row — run the Phase 1 backfill.`
+    );
+    return lines;
+  }
+
+  // Period interval in millis (extended by one day on each side as
+  // buffer for events that occur at month boundaries).
+  const periodStartMs = new Date(`${periodStart}T00:00:00Z`).getTime();
+  const periodEndMs = new Date(`${periodEnd}T00:00:00Z`).getTime() + 86_400_000;
+
+  const suspensionEvents = await listSuspensionEventsForTenant(
+    tenantName,
+    new Date(periodStartMs - 365 * 86_400_000), // look back a year for state-at-start
+    new Date(periodEndMs)
+  );
+
+  // --- tenant_monthly (prorated, suspended days excluded) -------------------
+  if (platformPricing.tenantMonthlyFeeChf > 0) {
+    let billableDays = 0;
+    let suspendedDays = 0;
+    for (const day of iterDays(periodStart, periodEnd)) {
+      if (activeDuringDay(lifecycle, suspensionEvents, day.dayStartMs, day.dayEndMs)) {
+        billableDays++;
+      } else {
+        // Distinguish "not yet existed / deleted" from "suspended"
+        // for the metadata audit trail. Cheap re-check.
+        const createdMs = new Date(lifecycle.createdAt).getTime();
+        const deletedMs = lifecycle.deletedAt
+          ? new Date(lifecycle.deletedAt).getTime()
+          : Infinity;
+        if (createdMs < day.dayEndMs && deletedMs > day.dayStartMs) {
+          suspendedDays++;
+        }
+      }
+    }
+    if (billableDays > 0) {
+      const unit = platformPricing.tenantMonthlyFeeChf / daysInMonth;
+      const amount = round2(unit * billableDays);
+      lines.push({
+        tenantName,
+        kind: "tenant_monthly",
+        description: `Monthly fee for ${tenantName} (${billableDays}/${daysInMonth} days)`,
+        quantity: billableDays,
+        unitLabel: "days",
+        unitPriceChf: round2(unit * 1e5) / 1e5,
+        amountChf: amount,
+        metadata: {
+          billable_days: billableDays,
+          suspended_days: suspendedDays,
+          days_in_month: daysInMonth,
+        },
+        displayOrder: displayOrder++,
+      });
+    }
+  }
+
+  // --- tenant_setup (first invoice only) -----------------------------------
+  if (platformPricing.tenantSetupFeeChf > 0) {
+    const alreadyBilled = await tenantHasSetupFeeBilled(tenantName);
+    if (!alreadyBilled) {
+      lines.push({
+        tenantName,
+        kind: "tenant_setup",
+        description: `Setup fee for ${tenantName}`,
+        quantity: 1,
+        unitLabel: null,
+        unitPriceChf: platformPricing.tenantSetupFeeChf,
+        amountChf: round2(platformPricing.tenantSetupFeeChf),
+        metadata: null,
+        displayOrder: displayOrder++,
+      });
+    }
+  }
+
+  // --- ai_usage --------------------------------------------------------------
+  const aiUsage = await collectAiUsage(tenant, periodStart, periodEnd).catch(
+    (e) => {
+      warnings.push(
+        `AI usage fetch failed for ${tenantName}: ${e instanceof Error ? e.message : String(e)}`
+      );
+      return null;
+    }
+  );
+  if (aiUsage === null && tenant.status?.litellmTeamId) {
+    // teamId exists but fetch returned null — already warned above
+  } else if (aiUsage === null) {
+    warnings.push(
+      `Tenant ${tenantName} has no LiteLLM team yet — AI usage skipped.`
+    );
+  } else if (aiUsage.spendChf > 0) {
+    lines.push({
+      tenantName,
+      kind: "ai_usage",
+      description: `AI inference usage (${aiUsage.requestCount} requests)`,
+      quantity: 1,
+      unitLabel: null,
+      unitPriceChf: aiUsage.spendChf,
+      amountChf: aiUsage.spendChf,
+      metadata: {
+        litellm_key_alias: tenantName,
+        spend_chf: aiUsage.spendChf,
+        requests: aiUsage.requestCount,
+      },
+      displayOrder: displayOrder++,
+    });
+  }
+
+  // --- threema_messages -----------------------------------------------------
+  if (platformPricing.threemaMessageChf > 0) {
+    const threema = await collectThreemaUsage(tenant, periodStart, periodEnd);
+    if (threema && (threema.inCount + threema.outCount) > 0) {
+      const total = threema.inCount + threema.outCount;
+      lines.push({
+        tenantName,
+        kind: "threema_messages",
+        description: `Threema messages (${threema.inCount} in + ${threema.outCount} out)`,
+        quantity: total,
+        unitLabel: "msgs",
+        unitPriceChf: platformPricing.threemaMessageChf,
+        amountChf: round2(total * platformPricing.threemaMessageChf),
+        metadata: {
+          in_count: threema.inCount,
+          out_count: threema.outCount,
+          total_count: total,
+        },
+        displayOrder: displayOrder++,
+      });
+    }
+  }
+
+  // --- skill_usage ----------------------------------------------------------
+  // For each priced skill, count distinct UTC days the skill was
+  // enabled during the period.
+  if (skillPricing.length > 0) {
+    // Fetch all skill events for the tenant within the period plus
+    // a long lookback so we can determine state-at-period-start.
+    // The state-at-day-start logic in skillActiveDuringDay walks
+    // these events forward.
+    const allEvents = await listSkillEventsForTenant(
+      tenantName,
+      new Date(0),
+      new Date(periodEndMs)
+    );
+    for (const sp of skillPricing) {
+      const skillEvents = allEvents.filter((e) => e.skillId === sp.skillId);
+      // Skip cheaply if no events ever existed for this skill on
+      // this tenant.
+      if (skillEvents.length === 0) continue;
+      // Initial state assumption: false. The very first event is
+      // always 'enabled' (we only record toggles, and the implicit
+      // pre-toggle state for a never-seen skill is 'disabled').
+      let billableDays = 0;
+      for (const day of iterDays(periodStart, periodEnd)) {
+        if (skillActiveDuringDay(skillEvents, false, day.dayStartMs, day.dayEndMs)) {
+          billableDays++;
+        }
+      }
+      if (billableDays > 0) {
+        lines.push({
+          tenantName,
+          kind: "skill_usage",
+          description: `Skill: ${sp.skillId} (${billableDays} day${billableDays === 1 ? "" : "s"})`,
+          quantity: billableDays,
+          unitLabel: "days",
+          unitPriceChf: sp.dailyPriceChf,
+          amountChf: round2(billableDays * sp.dailyPriceChf),
+          metadata: {
+            skill_id: sp.skillId,
+            billable_days: billableDays,
+            event_count: skillEvents.length,
+          },
+          displayOrder: displayOrder++,
+        });
+      }
+    }
+  }
+
+  return lines;
+}
+
+// ---------------------------------------------------------------------------
+// Public API
+// ---------------------------------------------------------------------------
+
+export async function computeInvoiceDraft(opts: {
+  zitadelOrgId: string;
+  year: number;
+  month: number;
+  locale?: string;
+  paymentMethod?: InvoicePaymentMethod;
+}): Promise<InvoiceDraft> {
+  const { zitadelOrgId, year, month } = opts;
+  const { periodStart, periodEnd, daysInMonth } = monthBounds(year, month);
+  const warnings: string[] = [];
+
+  // 1. Billing address. Required — without it we can't produce a
+  //    valid invoice.
+  const orgBilling = await getOrgBilling(zitadelOrgId);
+  if (!orgBilling) {
+    throw new Error(
+      `Org ${zitadelOrgId} has no billing address on file. ` +
+        `The customer must complete /settings/billing before an invoice can be issued.`
+    );
+  }
+  const snapshot: InvoiceBillingSnapshot = {
+    companyName: orgBilling.companyName,
+    streetAddress: orgBilling.streetAddress,
+    postalCode: orgBilling.postalCode,
+    city: orgBilling.city,
+    country: orgBilling.country,
+    vatNumber: orgBilling.vatNumber ?? null,
+    billingEmail: orgBilling.billingEmail,
+    notes: orgBilling.notes ?? null,
+  };
+
+  // 2. Platform pricing + skill prices.
+  const platformPricing = await getPlatformPricing();
+  const skillPricing = await listSkillPricing();
+
+  // 3. Find all tenants for this org. We list from K8s (source of
+  //    truth) and filter by the zitadel-org-id label.
+  const allTenants = await listTenants();
+  const orgTenants = allTenants.filter(
+    (t) => t.metadata.labels?.["pieced.ch/zitadel-org-id"] === zitadelOrgId
+  );
+  if (orgTenants.length === 0) {
+    warnings.push(`No tenants found for org ${zitadelOrgId}.`);
+  }
+
+  // 4. Build lines, grouped per tenant (display order preserved).
+  const lines: Omit<InvoiceLine, "id" | "invoiceId">[] = [];
+  let nextDisplayOrder = 0;
+  // Sort tenants by name for stable line ordering across regenerations.
+  orgTenants.sort((a, b) => a.metadata.name.localeCompare(b.metadata.name));
+  for (const tenant of orgTenants) {
+    const tenantLines = await buildTenantLines({
+      tenant,
+      periodStart,
+      periodEnd,
+      daysInMonth,
+      platformPricing,
+      skillPricing,
+      warnings,
+      displayOrderOffset: nextDisplayOrder,
+    });
+    lines.push(...tenantLines);
+    nextDisplayOrder += tenantLines.length;
+  }
+
+  // 5. Subtotal & VAT.
+  const subtotal = round2(lines.reduce((acc, l) => acc + l.amountChf, 0));
+  const vat = vatRateForAddress(snapshot, platformPricing);
+  const vatAmount = round2((subtotal * vat.rate) / 100);
+  const total = round2(subtotal + vatAmount);
+  if (vat.note) warnings.push(vat.note);
+
+  // 6. Payment method: prefer pay-by-invoice if the admin enabled
+  //    it for the org, otherwise default to invoice. Card payment
+  //    is wired in Phase 4 — for Phase 2 every invoice is 'invoice'.
+  const orgConfig = await getOrgBillingConfig(zitadelOrgId);
+  const paymentMethod: InvoicePaymentMethod =
+    opts.paymentMethod ?? (orgConfig.payByInvoice ? "invoice" : "invoice");
+
+  // 7. Locale resolution
+  const locale = opts.locale ?? defaultLocaleForCountry(snapshot.country);
+
+  return {
+    zitadelOrgId,
+    periodStart,
+    periodEnd,
+    dueAt: dueDate(periodEnd, 30),
+    locale,
+    paymentMethod,
+    billingSnapshot: snapshot,
+    lines,
+    subtotalChf: subtotal,
+    vatRate: vat.rate,
+    vatAmountChf: vatAmount,
+    totalChf: total,
+    warnings,
+  };
+}
+
+/**
+ * Compute + render + persist in one step. If dryRun is true, the
+ * draft is returned without persisting and no PDF is rendered (the
+ * preview UI hits this).
+ */
+export async function generateInvoice(opts: {
+  zitadelOrgId: string;
+  year: number;
+  month: number;
+  locale?: string;
+  dryRun?: boolean;
+}): Promise<{ draft: InvoiceDraft; invoice: Invoice | null }> {
+  const draft = await computeInvoiceDraft(opts);
+  if (opts.dryRun) {
+    return { draft, invoice: null };
+  }
+  // Render the PDF first — if it fails, we never touch the DB.
+  // The PDF render needs the invoice number, which is allocated
+  // inside createInvoice's transaction. To keep the PDF rendering
+  // outside the DB transaction (it can be slow), we render with a
+  // placeholder number, allocate the real number inside the tx,
+  // then re-render? No — instead we generate a temporary draft
+  // number for the PDF and accept that the displayed number on
+  // the PDF matches what we'll persist (because the allocator is
+  // serialized).
+  //
+  // Practical approach: render the PDF inside createInvoice's tx,
+  // immediately after allocation. This is fine because react-pdf
+  // is reasonably fast (~50–200 ms for a typical invoice) and
+  // happens once per invoice.
+  //
+  // To avoid restructuring createInvoice, we do this in two
+  // passes: (1) reserve a number via createInvoice with a
+  // placeholder PDF; (2) render with the real number; (3) UPDATE
+  // pdf_data. The trade-off is two write trips but keeps the code
+  // shape simple. We accept it.
+  //
+  // Reasoning behind two-pass: if PDF render is moved inside the
+  // tx and fails (font missing, etc.), the allocated counter rolls
+  // back — good. But it also means the connection is held during
+  // render. At v1 scale that's fine; the choice is reversible.
+
+  // Pass 1: allocate number + persist with empty PDF.
+  const placeholder = await createInvoice(draft, null, null);
+  try {
+    const pdfBuffer = await renderInvoicePdf(
+      placeholder,
+      draft.lines.map((l, i) => ({
+        ...l,
+        id: `tmp-${i}`,
+        invoiceId: placeholder.id,
+      }))
+    );
+    const filename = `${placeholder.invoiceNumber}.pdf`;
+    // Pass 2: store the PDF bytes.
+    await updateInvoicePdf(placeholder.id, pdfBuffer, filename);
+    const finalInvoice = await getInvoiceById(placeholder.id);
+    return { draft, invoice: finalInvoice ?? placeholder };
+  } catch (e) {
+    // Render failed — leave the persisted row in place so admin can
+    // inspect it, but surface the error.
+    throw new Error(
+      `Invoice ${placeholder.invoiceNumber} persisted but PDF rendering failed: ${
+        e instanceof Error ? e.message : String(e)
+      }. Use the admin "delete invoice" tool to clean up if needed.`
+    );
+  }
+}

src/lib/threema-gateway-config.ts

@@ -0,0 +1,31 @@
+/**
+ * Threema central gateway info shown to customers.
+ *
+ * Today PieCed runs exactly one Threema Gateway account (*AIAGENT) and
+ * every tenant talks to that. The constants below are hardcoded for
+ * that account. The values are intentionally kept here (and not split
+ * across i18n / env / runtime config) so when we move to multiple
+ * gateway accounts there's a single file to refactor.
+ *
+ * To go dynamic (future):
+ *   1. Replace `THREEMA_GATEWAY` constant with a runtime lookup —
+ *      either per-tenant from the relay's admin API, or from an
+ *      env var that lists the active account.
+ *   2. Move the QR PNG into a server-rendered route that takes a
+ *      gateway ID query param.
+ *   3. Update consumers to accept the gateway info as a prop and pass
+ *      it from a server component.
+ */
+
+export const THREEMA_GATEWAY = {
+  /** Technical Threema Gateway ID, with leading asterisk. */
+  id: "*AIAGENT",
+  /**
+   * Display name shown to customers. INCLUDES the leading asterisk —
+   * customers need to recognise this exact string in their Threema
+   * contacts after scanning the QR, so we don't strip it.
+   */
+  displayName: "*AIAGENT",
+  /** Public path to the QR code PNG served from `public/`. */
+  qrCodePath: "/threema/qr_code_AIAGENT.png",
+} as const;

src/messages/de.json

@@ -306,6 +306,11 @@
       "smtpPassPlaceholder": "••••••••",
       "instructions": "1. Für Gmail: Aktivieren Sie die 2-Faktor-Authentifizierung, erstellen Sie dann unter https://myaccount.google.com/apppasswords ein App-Passwort und verwenden Sie es als IMAP- und SMTP-Passwort.\n2. Für Outlook / Microsoft 365 mit MFA: Generieren Sie ein App-Passwort in den Sicherheitseinstellungen Ihres Kontos.\n3. Für andere Anbieter: Konsultieren Sie deren IMAP/SMTP-Dokumentation für Hostnamen und Ports.\n4. Typische IMAP-Hosts: imap.gmail.com, outlook.office365.com.\n5. Typische SMTP-Hosts: smtp.gmail.com, smtp.office365.com.",
       "disclaimer": "Der Assistent erhält Lese- und Schreibzugriff auf das von Ihnen konfigurierte Postfach. Verwenden Sie eine dedizierte Adresse anstelle eines persönlichen Postfachs, wenn Sie den Umfang einschränken möchten."
+    },
+    "threema": {
+      "description": "Senden und empfangen Sie Nachrichten über Threema. Jede eingehende und ausgehende Nachricht läuft über den gemeinsamen PieCed-Messaging-Dienst und verursacht eine Gebühr pro Nachricht bei Threema — eine Drittanbieter-Kostenposition, unabhängig von Ihrem PieCed-Abonnement.",
+      "instructions": "1. Aktivieren Sie dieses Paket.\n2. Öffnen Sie Threema auf Ihrem Telefon, scannen Sie den QR-Code unter Autorisierte Benutzer → threema und akzeptieren Sie den Kontakt.\n3. Tragen Sie Ihre eigene Threema-ID unter Autorisierte Benutzer → threema ein, damit der Assistent Ihre Nachrichten erkennt.\n4. Schreiben Sie eine Nachricht aus Threema, um das Gespräch zu beginnen.",
+      "disclaimer": "Nachrichten zwischen Threema und PieCed werden Ende-zu-Ende verschlüsselt bis zum PieCed-Messaging-Dienst, wo sie entschlüsselt und an Ihren Assistenten weitergeleitet werden. Jede gesendete oder empfangene Nachricht wird gemäss Threema-Tarif pro Nachricht abgerechnet — die aktuellen Preise finden Sie in Ihrem Plan."
     }
   },
   "admin": {
@@ -379,7 +384,8 @@
     "spendChf": "Kosten (CHF)",
     "resumeRequestBadge": "Wieder",
     "resumeRequestTooltip": "Reaktivierungsanfrage für einen bestehenden Tenant. Bei Genehmigung wird der Tenant wieder aktiviert; keine Provisionierung läuft.",
-    "openclawTool": "OpenClaw-Versionen"
+    "openclawTool": "OpenClaw-Versionen",
+    "billingTool": "Abrechnung →"
   },
   "channelUsers": {
     "title": "Autorisierte Benutzer",
@@ -390,7 +396,18 @@
     "remove": "Entfernen",
     "alreadyAdded": "Diese Benutzer-ID ist bereits autorisiert.",
     "telegramIdHelp": "So finden Sie Ihre Telegram-Benutzer-ID:\n1. Öffnen Sie Telegram und schreiben Sie @userinfobot\n2. Der Bot antwortet sofort mit Ihrer numerischen ID\n3. Geben Sie diese Nummer hier ein",
-    "discordIdHelp": "So finden Sie Ihre Discord-Benutzer-ID:\n1. Aktivieren Sie den Entwicklermodus in den Discord-Einstellungen (Erweitert)\n2. Rechtsklick auf Ihren Namen → Benutzer-ID kopieren\n3. Geben Sie diese Nummer hier ein"
+    "discordIdHelp": "So finden Sie Ihre Discord-Benutzer-ID:\n1. Aktivieren Sie den Entwicklermodus in den Discord-Einstellungen (Erweitert)\n2. Rechtsklick auf Ihren Namen → Benutzer-ID kopieren\n3. Geben Sie diese Nummer hier ein",
+    "threemaIdHelp": "Geben Sie Ihre eigene Threema-ID ein — die 8 Zeichen, die in Ihrer Threema-App unter Einstellungen → Meine Threema-ID angezeigt werden. Anschliessend können Sie direkt aus Threema mit dem Assistenten chatten.",
+    "threemaSetup": {
+      "title": "Assistenten zu Threema hinzufügen",
+      "step1": "Öffnen Sie Threema auf Ihrem Telefon.",
+      "step2": "Tippen Sie auf das Scan-Symbol und scannen Sie diesen QR-Code, um den Assistenten als Kontakt hinzuzufügen.",
+      "step3": "Fügen Sie anschliessend unten Ihre eigene Threema-ID hinzu.",
+      "qrAlt": "QR-Code, um {gateway} als Threema-Kontakt hinzuzufügen",
+      "bannerTitle": "Threema einrichten",
+      "bannerBody": "Öffnen Sie Threema auf Ihrem Telefon und scannen Sie unseren QR-Code, um den Assistenten als Kontakt hinzuzufügen. Geben Sie anschliessend unten Ihre eigene Threema-ID ein.",
+      "bannerButton": "QR-Code anzeigen"
+    }
   },
   "team": {
     "title": "Team",
@@ -537,5 +554,105 @@
     "defaultPrefix": "Standard:",
     "saveOverride": "Override speichern",
     "clearOverride": "Override entfernen"
+  },
+  "adminBilling": {
+    "title": "Abrechnungsverwaltung",
+    "subtitle": "Plattform-Preise verwalten, Rechnungen generieren und den Rechnungsstatus aller Organisationen prüfen.",
+    "backToAdmin": "Zurück zur Verwaltung",
+    "backToBilling": "Zurück zur Abrechnung",
+    "backToInvoices": "Zurück zu den Rechnungen",
+    "totalOpenBalance": "Offener Saldo gesamt",
+    "orgsWithBalance": "Organisationen mit Saldo",
+    "overdueInvoices": "Überfällige Rechnungen",
+    "pricingTitle": "Preise",
+    "pricingDesc": "Plattform- & Skill-Preise, MWST-Satz.",
+    "pricingPageDesc": "Plattformweite Preise und Skill-Tagespreise bearbeiten.",
+    "generateTitle": "Rechnung erstellen",
+    "generateDesc": "Rechnung für eine Organisation und einen Monat berechnen und ausstellen.",
+    "generatePageDesc": "Organisation, Periode und Sprache wählen. Die Vorschau zeigt die berechneten Positionen; mit Bestätigen wird die Rechnung ausgestellt und das PDF erzeugt.",
+    "invoicesTitle": "Rechnungen",
+    "invoicesDesc": "Alle Rechnungen anzeigen, als bezahlt markieren, PDFs herunterladen.",
+    "invoicesPageDesc": "Alle von der Plattform ausgestellten Rechnungen. Mit dem Statusfilter offene oder überfällige Positionen einsehen.",
+    "balancesTitle": "Organisationen mit offenem Saldo",
+    "orgIdCol": "Zitadel-Org-ID",
+    "openCountCol": "Offen",
+    "overdueCountCol": "Überfällig",
+    "totalOpenCol": "Gesamt offen",
+    "platformPricingTitle": "Plattform-Preise",
+    "monthlyFeeLabel": "Monatliche Tenant-Gebühr",
+    "setupFeeLabel": "Einrichtungsgebühr Tenant",
+    "threemaMessageLabel": "Threema pro Nachricht",
+    "vatRateLabel": "MWST-Satz (CH/LI)",
+    "save": "Speichern",
+    "saving": "Speichere…",
+    "savedOk": "Gespeichert",
+    "skillPricingTitle": "Skill-Preise",
+    "skillPricingDesc": "Tagespreis pro Skill. Ein zu beliebigem Zeitpunkt an einem UTC-Tag aktivierter Skill zählt als ein abrechenbarer Tag.",
+    "skillCol": "Skill",
+    "dailyPriceCol": "Tagespreis",
+    "actionsCol": "",
+    "remove": "Entfernen",
+    "noSkillsPriced": "Noch keine Skills bepreist.",
+    "addSkillLabel": "Skill hinzufügen",
+    "dailyPriceLabel": "Tagespreis",
+    "add": "Hinzufügen",
+    "confirmDeleteSkillPrice": "Preis für {skill} entfernen?",
+    "clickToEdit": "Zum Bearbeiten klicken",
+    "generateFormTitle": "Rechnung erstellen",
+    "noOrgsToGenerate": "Keine Organisationen mit Tenants gefunden.",
+    "orgLabel": "Organisation",
+    "noBillingAddrTag": "keine Rechnungsadresse",
+    "noBillingAddrWarning": "Diese Organisation hat keine Rechnungsadresse hinterlegt. Der Kunde muss /settings/billing ausfüllen, bevor eine Rechnung ausgestellt werden kann.",
+    "tenantsLabel": "Tenants",
+    "yearLabel": "Jahr",
+    "monthLabel": "Monat",
+    "localeLabel": "PDF-Sprache",
+    "localeAuto": "Automatisch",
+    "previewBtn": "Vorschau",
+    "commitBtn": "Bestätigen & ausstellen",
+    "computing": "Berechne…",
+    "confirmGenerate": "Diese Rechnung ausstellen? Es wird eine Rechnungsnummer vergeben und das PDF erzeugt.",
+    "previewTitle": "Entwurfsvorschau",
+    "warningsTitle": "Hinweise",
+    "noLinesGenerated": "Keine abrechenbaren Positionen für diese Periode.",
+    "descCol": "Beschreibung",
+    "qtyCol": "Menge",
+    "unitPriceCol": "Einzelpreis",
+    "amountCol": "Betrag (CHF)",
+    "subtotal": "Zwischensumme",
+    "vat": "MWST",
+    "total": "Total",
+    "statusFilterLabel": "Status",
+    "allStatuses": "Alle",
+    "monthFilterLabel": "Periode",
+    "clearFilter": "Zurücksetzen",
+    "loading": "Lade…",
+    "noInvoicesFound": "Keine Rechnungen entsprechen den aktuellen Filtern.",
+    "invoiceNumberCol": "Nummer",
+    "orgCol": "Organisation",
+    "periodCol": "Periode",
+    "statusCol": "Status",
+    "totalCol": "Total",
+    "dueCol": "Fällig",
+    "status_draft": "Entwurf",
+    "status_open": "Offen",
+    "status_paid": "Bezahlt",
+    "status_overdue": "Überfällig",
+    "status_void": "Storniert",
+    "status_uncollectible": "Uneinbringlich",
+    "dueOnLabel": "Fällig",
+    "totalLabel": "Total",
+    "downloadPdfBtn": "PDF herunterladen",
+    "markPaidBtn": "Als bezahlt markieren",
+    "paidNotePlaceholder": "Optionale Notiz (z. B. Bankreferenz, Eingangsdatum)",
+    "confirm": "Bestätigen",
+    "cancel": "Abbrechen",
+    "deleteBtn": "Löschen",
+    "deleting": "Lösche…",
+    "deleteHint": "Rechnung hart löschen (Test-Tool). Die Nummer bleibt vergeben.",
+    "confirmDeleteInvoice": "Rechnung {num} löschen? Dies ist eine harte Löschung — die Rechnungsnummer bleibt verbraucht.",
+    "paidOnLabel": "Bezahlt am",
+    "lineItemsTitle": "Positionen",
+    "billToSnapshotTitle": "Rechnungsempfänger"
   }
 }

src/messages/en.json

@@ -306,6 +306,11 @@
       "smtpPassPlaceholder": "••••••••",
       "instructions": "1. For Gmail: enable 2-Step Verification, then create an App Password at https://myaccount.google.com/apppasswords and use it as both IMAP and SMTP password.\n2. For Outlook / Microsoft 365 with MFA: generate an app password in your account's security settings.\n3. For other providers: refer to their IMAP/SMTP documentation for host names and ports.\n4. Typical IMAP hosts: imap.gmail.com, outlook.office365.com.\n5. Typical SMTP hosts: smtp.gmail.com, smtp.office365.com.",
       "disclaimer": "The assistant gains read/write access to the mailbox you configure. Consider using a dedicated address rather than a personal inbox if you want to limit scope."
+    },
+    "threema": {
+      "description": "Send and receive messages through Threema. Each inbound and outbound message uses the shared PieCed messaging service and incurs a per-message charge from Threema — a third-party cost, separate from your PieCed subscription.",
+      "instructions": "1. Enable this package.\n2. Open Threema on your phone, scan the QR code shown under Authorized Users → threema, and accept the contact.\n3. Add your own Threema ID under Authorized Users → threema so the assistant recognises your messages.\n4. Send a message from Threema to start chatting with the assistant.",
+      "disclaimer": "Messages between Threema and PieCed are end-to-end encrypted up to PieCed's messaging service, where they are decrypted to be routed to your assistant. Each message sent or received is counted toward Threema's per-message billing — see your plan for current rates."
     }
   },
   "admin": {
@@ -379,7 +384,8 @@
     "spendChf": "Spend (CHF)",
     "resumeRequestBadge": "Resume",
     "resumeRequestTooltip": "Reactivation request for an existing tenant. Approving will un-suspend the tenant; no provisioning runs.",
-    "openclawTool": "OpenClaw versions"
+    "openclawTool": "OpenClaw versions",
+    "billingTool": "Billing →"
   },
   "channelUsers": {
     "title": "Authorized Users",
@@ -390,7 +396,18 @@
     "remove": "Remove",
     "alreadyAdded": "This user ID is already authorized.",
     "telegramIdHelp": "To find your Telegram user ID:\n1. Open Telegram and message @userinfobot\n2. It instantly replies with your numeric ID\n3. Enter that number here",
-    "discordIdHelp": "To find your Discord user ID:\n1. Enable Developer Mode in Discord settings (Advanced)\n2. Right-click your name → Copy User ID\n3. Enter that number here"
+    "discordIdHelp": "To find your Discord user ID:\n1. Enable Developer Mode in Discord settings (Advanced)\n2. Right-click your name → Copy User ID\n3. Enter that number here",
+    "threemaIdHelp": "Enter your own Threema ID — the 8 characters shown in your Threema app under Settings → My Threema ID. Once added, you'll be able to chat with the assistant directly from Threema.",
+    "threemaSetup": {
+      "title": "Add the assistant to your Threema",
+      "step1": "Open Threema on your phone.",
+      "step2": "Tap the scan icon and scan this QR code to add the assistant as a contact.",
+      "step3": "Then add your own Threema ID below.",
+      "qrAlt": "QR code to add {gateway} as a Threema contact",
+      "bannerTitle": "Set up Threema",
+      "bannerBody": "Open Threema on your phone and scan our QR code to add the assistant as a contact. Then add your own Threema ID below.",
+      "bannerButton": "Show QR code"
+    }
   },
   "team": {
     "title": "Team",
@@ -537,5 +554,105 @@
     "defaultPrefix": "Default:",
     "saveOverride": "Save override",
     "clearOverride": "Clear override"
+  },
+  "adminBilling": {
+    "title": "Billing administration",
+    "subtitle": "Manage platform pricing, generate invoices, and review billing status across all organizations.",
+    "backToAdmin": "Back to Admin",
+    "backToBilling": "Back to Billing",
+    "backToInvoices": "Back to Invoices",
+    "totalOpenBalance": "Total open balance",
+    "orgsWithBalance": "Orgs with balance",
+    "overdueInvoices": "Overdue invoices",
+    "pricingTitle": "Pricing",
+    "pricingDesc": "Platform & skill prices, VAT rate.",
+    "pricingPageDesc": "Edit platform-wide pricing and per-skill daily rates.",
+    "generateTitle": "Generate invoice",
+    "generateDesc": "Compute and issue an invoice for a given org & month.",
+    "generatePageDesc": "Pick an org, period and locale. Preview shows the computed lines; commit issues the invoice and renders the PDF.",
+    "invoicesTitle": "Invoices",
+    "invoicesDesc": "Browse all issued invoices, mark paid, download PDFs.",
+    "invoicesPageDesc": "All invoices issued by the platform. Use the status filter to focus on open or overdue items.",
+    "balancesTitle": "Orgs with open balance",
+    "orgIdCol": "Zitadel org ID",
+    "openCountCol": "Open",
+    "overdueCountCol": "Overdue",
+    "totalOpenCol": "Total open",
+    "platformPricingTitle": "Platform pricing",
+    "monthlyFeeLabel": "Tenant monthly fee",
+    "setupFeeLabel": "Tenant setup fee",
+    "threemaMessageLabel": "Threema per message",
+    "vatRateLabel": "VAT rate (CH/LI)",
+    "save": "Save",
+    "saving": "Saving…",
+    "savedOk": "Saved",
+    "skillPricingTitle": "Skill pricing",
+    "skillPricingDesc": "Per-skill daily price. A skill enabled at any point during a UTC day counts as one billable day.",
+    "skillCol": "Skill",
+    "dailyPriceCol": "Daily price",
+    "actionsCol": "",
+    "remove": "Remove",
+    "noSkillsPriced": "No skills are priced yet.",
+    "addSkillLabel": "Add skill",
+    "dailyPriceLabel": "Daily price",
+    "add": "Add",
+    "confirmDeleteSkillPrice": "Remove pricing for {skill}?",
+    "clickToEdit": "Click to edit",
+    "generateFormTitle": "Generate invoice",
+    "noOrgsToGenerate": "No organizations with tenants found.",
+    "orgLabel": "Organization",
+    "noBillingAddrTag": "no billing address",
+    "noBillingAddrWarning": "This org has no billing address on file. The customer must complete /settings/billing before an invoice can be issued.",
+    "tenantsLabel": "tenants",
+    "yearLabel": "Year",
+    "monthLabel": "Month",
+    "localeLabel": "PDF language",
+    "localeAuto": "Auto",
+    "previewBtn": "Preview",
+    "commitBtn": "Commit & issue",
+    "computing": "Computing…",
+    "confirmGenerate": "Issue this invoice? This action allocates an invoice number and renders the PDF.",
+    "previewTitle": "Draft preview",
+    "warningsTitle": "Warnings",
+    "noLinesGenerated": "No billable lines for this period.",
+    "descCol": "Description",
+    "qtyCol": "Qty",
+    "unitPriceCol": "Unit price",
+    "amountCol": "Amount (CHF)",
+    "subtotal": "Subtotal",
+    "vat": "VAT",
+    "total": "Total",
+    "statusFilterLabel": "Status",
+    "allStatuses": "All",
+    "monthFilterLabel": "Period",
+    "clearFilter": "Clear",
+    "loading": "Loading…",
+    "noInvoicesFound": "No invoices match the current filters.",
+    "invoiceNumberCol": "Number",
+    "orgCol": "Organization",
+    "periodCol": "Period",
+    "statusCol": "Status",
+    "totalCol": "Total",
+    "dueCol": "Due",
+    "status_draft": "Draft",
+    "status_open": "Open",
+    "status_paid": "Paid",
+    "status_overdue": "Overdue",
+    "status_void": "Void",
+    "status_uncollectible": "Uncollectible",
+    "dueOnLabel": "Due",
+    "totalLabel": "Total",
+    "downloadPdfBtn": "Download PDF",
+    "markPaidBtn": "Mark as paid",
+    "paidNotePlaceholder": "Optional note (e.g. bank reference, deposit date)",
+    "confirm": "Confirm",
+    "cancel": "Cancel",
+    "deleteBtn": "Delete",
+    "deleting": "Deleting…",
+    "deleteHint": "Hard-delete this invoice (testing tool). Number is consumed.",
+    "confirmDeleteInvoice": "Delete invoice {num}? This is a hard delete — the invoice number stays consumed.",
+    "paidOnLabel": "Paid",
+    "lineItemsTitle": "Line items",
+    "billToSnapshotTitle": "Billed to"
   }
 }

src/messages/fr.json

@@ -306,6 +306,11 @@
       "smtpPassPlaceholder": "••••••••",
       "instructions": "1. Pour Gmail : activez la validation en deux étapes, puis créez un mot de passe d'application sur https://myaccount.google.com/apppasswords et utilisez-le comme mot de passe IMAP et SMTP.\n2. Pour Outlook / Microsoft 365 avec MFA : générez un mot de passe d'application dans les paramètres de sécurité de votre compte.\n3. Pour les autres fournisseurs : consultez leur documentation IMAP/SMTP pour les noms d'hôte et les ports.\n4. Hôtes IMAP typiques : imap.gmail.com, outlook.office365.com.\n5. Hôtes SMTP typiques : smtp.gmail.com, smtp.office365.com.",
       "disclaimer": "L'assistant obtient un accès en lecture/écriture à la boîte aux lettres que vous configurez. Envisagez d'utiliser une adresse dédiée plutôt qu'une boîte personnelle si vous souhaitez limiter la portée."
+    },
+    "threema": {
+      "description": "Envoyez et recevez des messages via Threema. Chaque message entrant ou sortant transite par le service de messagerie PieCed partagé et entraîne des frais par message facturés par Threema — un coût tiers, distinct de votre abonnement PieCed.",
+      "instructions": "1. Activez ce package.\n2. Ouvrez Threema sur votre téléphone, scannez le QR code affiché dans Utilisateurs autorisés → threema, puis acceptez le contact.\n3. Ajoutez votre propre identifiant Threema sous Utilisateurs autorisés → threema afin que l'assistant reconnaisse vos messages.\n4. Envoyez un message depuis Threema pour commencer la conversation.",
+      "disclaimer": "Les messages entre Threema et PieCed sont chiffrés de bout en bout jusqu'au service de messagerie PieCed, où ils sont déchiffrés pour être acheminés vers votre assistant. Chaque message envoyé ou reçu est facturé par Threema selon son tarif par message — consultez votre plan pour les tarifs en vigueur."
     }
   },
   "admin": {
@@ -379,7 +384,8 @@
     "spendChf": "Coûts (CHF)",
     "resumeRequestBadge": "Reprise",
     "resumeRequestTooltip": "Demande de réactivation d'un locataire existant. L'approbation le réactivera ; aucun provisionnement ne s'exécute.",
-    "openclawTool": "Versions OpenClaw"
+    "openclawTool": "Versions OpenClaw",
+    "billingTool": "Facturation →"
   },
   "channelUsers": {
     "title": "Utilisateurs autorisés",
@@ -390,7 +396,18 @@
     "remove": "Supprimer",
     "alreadyAdded": "Cet identifiant est déjà autorisé.",
     "telegramIdHelp": "Pour trouver votre identifiant Telegram :\n1. Ouvrez Telegram et envoyez un message à @userinfobot\n2. Il répond instantanément avec votre identifiant numérique\n3. Entrez ce numéro ici",
-    "discordIdHelp": "Pour trouver votre identifiant Discord :\n1. Activez le mode développeur dans les paramètres Discord (Avancé)\n2. Clic droit sur votre nom → Copier l'identifiant\n3. Entrez ce numéro ici"
+    "discordIdHelp": "Pour trouver votre identifiant Discord :\n1. Activez le mode développeur dans les paramètres Discord (Avancé)\n2. Clic droit sur votre nom → Copier l'identifiant\n3. Entrez ce numéro ici",
+    "threemaIdHelp": "Saisissez votre propre identifiant Threema — les 8 caractères affichés dans votre application Threema sous Réglages → Mon identifiant Threema. Une fois ajouté, vous pourrez discuter directement avec l'assistant depuis Threema.",
+    "threemaSetup": {
+      "title": "Ajouter l'assistant à Threema",
+      "step1": "Ouvrez Threema sur votre téléphone.",
+      "step2": "Appuyez sur l'icône de scan et scannez ce QR code pour ajouter l'assistant comme contact.",
+      "step3": "Puis ajoutez votre propre identifiant Threema ci-dessous.",
+      "qrAlt": "QR code pour ajouter {gateway} comme contact Threema",
+      "bannerTitle": "Configurer Threema",
+      "bannerBody": "Ouvrez Threema sur votre téléphone et scannez notre QR code pour ajouter l'assistant comme contact. Saisissez ensuite votre propre identifiant Threema ci-dessous.",
+      "bannerButton": "Afficher le QR code"
+    }
   },
   "team": {
     "title": "Équipe",
@@ -537,5 +554,105 @@
     "defaultPrefix": "Défaut :",
     "saveOverride": "Enregistrer la surcharge",
     "clearOverride": "Supprimer la surcharge"
+  },
+  "adminBilling": {
+    "title": "Administration de la facturation",
+    "subtitle": "Gérer les tarifs de la plateforme, générer des factures et examiner le statut de facturation des organisations.",
+    "backToAdmin": "Retour à l'administration",
+    "backToBilling": "Retour à la facturation",
+    "backToInvoices": "Retour aux factures",
+    "totalOpenBalance": "Solde ouvert total",
+    "orgsWithBalance": "Organisations avec solde",
+    "overdueInvoices": "Factures en retard",
+    "pricingTitle": "Tarifs",
+    "pricingDesc": "Tarifs plateforme & skills, taux TVA.",
+    "pricingPageDesc": "Modifier les tarifs de la plateforme et les prix journaliers par skill.",
+    "generateTitle": "Générer une facture",
+    "generateDesc": "Calculer et émettre une facture pour une organisation et un mois.",
+    "generatePageDesc": "Choisir une organisation, une période et une langue. L'aperçu affiche les lignes calculées; valider émet la facture et génère le PDF.",
+    "invoicesTitle": "Factures",
+    "invoicesDesc": "Parcourir les factures, marquer comme payées, télécharger les PDF.",
+    "invoicesPageDesc": "Toutes les factures émises par la plateforme. Utiliser le filtre de statut pour cibler les éléments ouverts ou en retard.",
+    "balancesTitle": "Organisations avec solde ouvert",
+    "orgIdCol": "ID org Zitadel",
+    "openCountCol": "Ouvert",
+    "overdueCountCol": "En retard",
+    "totalOpenCol": "Total ouvert",
+    "platformPricingTitle": "Tarifs plateforme",
+    "monthlyFeeLabel": "Forfait mensuel tenant",
+    "setupFeeLabel": "Frais de configuration tenant",
+    "threemaMessageLabel": "Threema par message",
+    "vatRateLabel": "Taux TVA (CH/LI)",
+    "save": "Enregistrer",
+    "saving": "Enregistrement…",
+    "savedOk": "Enregistré",
+    "skillPricingTitle": "Tarifs des skills",
+    "skillPricingDesc": "Prix journalier par skill. Un skill activé à tout moment au cours d'une journée UTC compte comme un jour facturable.",
+    "skillCol": "Skill",
+    "dailyPriceCol": "Prix/jour",
+    "actionsCol": "",
+    "remove": "Retirer",
+    "noSkillsPriced": "Aucun skill n'a encore de prix.",
+    "addSkillLabel": "Ajouter un skill",
+    "dailyPriceLabel": "Prix/jour",
+    "add": "Ajouter",
+    "confirmDeleteSkillPrice": "Retirer le prix pour {skill}?",
+    "clickToEdit": "Cliquer pour modifier",
+    "generateFormTitle": "Générer une facture",
+    "noOrgsToGenerate": "Aucune organisation avec tenants trouvée.",
+    "orgLabel": "Organisation",
+    "noBillingAddrTag": "pas d'adresse de facturation",
+    "noBillingAddrWarning": "Cette organisation n'a pas d'adresse de facturation enregistrée. Le client doit compléter /settings/billing avant qu'une facture puisse être émise.",
+    "tenantsLabel": "tenants",
+    "yearLabel": "Année",
+    "monthLabel": "Mois",
+    "localeLabel": "Langue PDF",
+    "localeAuto": "Auto",
+    "previewBtn": "Aperçu",
+    "commitBtn": "Valider & émettre",
+    "computing": "Calcul…",
+    "confirmGenerate": "Émettre cette facture? Cette action attribue un numéro de facture et génère le PDF.",
+    "previewTitle": "Aperçu du brouillon",
+    "warningsTitle": "Avertissements",
+    "noLinesGenerated": "Aucune ligne facturable pour cette période.",
+    "descCol": "Description",
+    "qtyCol": "Qté",
+    "unitPriceCol": "Prix unitaire",
+    "amountCol": "Montant (CHF)",
+    "subtotal": "Sous-total",
+    "vat": "TVA",
+    "total": "Total",
+    "statusFilterLabel": "Statut",
+    "allStatuses": "Tous",
+    "monthFilterLabel": "Période",
+    "clearFilter": "Effacer",
+    "loading": "Chargement…",
+    "noInvoicesFound": "Aucune facture ne correspond aux filtres.",
+    "invoiceNumberCol": "Numéro",
+    "orgCol": "Organisation",
+    "periodCol": "Période",
+    "statusCol": "Statut",
+    "totalCol": "Total",
+    "dueCol": "Échéance",
+    "status_draft": "Brouillon",
+    "status_open": "Ouverte",
+    "status_paid": "Payée",
+    "status_overdue": "En retard",
+    "status_void": "Annulée",
+    "status_uncollectible": "Irrécouvrable",
+    "dueOnLabel": "Échéance",
+    "totalLabel": "Total",
+    "downloadPdfBtn": "Télécharger le PDF",
+    "markPaidBtn": "Marquer comme payée",
+    "paidNotePlaceholder": "Note facultative (ex. référence bancaire, date de paiement)",
+    "confirm": "Confirmer",
+    "cancel": "Annuler",
+    "deleteBtn": "Supprimer",
+    "deleting": "Suppression…",
+    "deleteHint": "Suppression définitive (outil de test). Le numéro reste utilisé.",
+    "confirmDeleteInvoice": "Supprimer la facture {num}? Suppression définitive — le numéro reste utilisé.",
+    "paidOnLabel": "Payée le",
+    "lineItemsTitle": "Lignes",
+    "billToSnapshotTitle": "Destinataire"
   }
 }

src/messages/it.json

@@ -306,6 +306,11 @@
       "smtpPassPlaceholder": "••••••••",
       "instructions": "1. Per Gmail: abilita la verifica in due passaggi, quindi crea una password per app su https://myaccount.google.com/apppasswords e usala come password IMAP e SMTP.\n2. Per Outlook / Microsoft 365 con MFA: genera una password per app nelle impostazioni di sicurezza del tuo account.\n3. Per altri provider: consulta la loro documentazione IMAP/SMTP per nomi host e porte.\n4. Host IMAP tipici: imap.gmail.com, outlook.office365.com.\n5. Host SMTP tipici: smtp.gmail.com, smtp.office365.com.",
       "disclaimer": "L'assistente ottiene accesso in lettura/scrittura alla casella di posta che configuri. Valuta l'uso di un indirizzo dedicato anziché di una casella personale se vuoi limitare la portata."
+    },
+    "threema": {
+      "description": "Invia e ricevi messaggi tramite Threema. Ogni messaggio in entrata e in uscita passa attraverso il servizio di messaggistica condiviso di PieCed e comporta un addebito per messaggio da parte di Threema — un costo di terzi, separato dall'abbonamento PieCed.",
+      "instructions": "1. Attiva questo pacchetto.\n2. Apri Threema sul tuo telefono, scansiona il QR code mostrato in Utenti autorizzati → threema e accetta il contatto.\n3. Aggiungi il tuo ID Threema sotto Utenti autorizzati → threema affinché l'assistente riconosca i tuoi messaggi.\n4. Invia un messaggio da Threema per iniziare la conversazione.",
+      "disclaimer": "I messaggi tra Threema e PieCed sono cifrati end-to-end fino al servizio di messaggistica PieCed, dove vengono decifrati per essere inoltrati al tuo assistente. Ogni messaggio inviato o ricevuto viene addebitato da Threema secondo la sua tariffa per messaggio — consulta il tuo piano per i prezzi attuali."
     }
   },
   "admin": {
@@ -379,7 +384,8 @@
     "spendChf": "Costi (CHF)",
     "resumeRequestBadge": "Ripresa",
     "resumeRequestTooltip": "Richiesta di riattivazione di un tenant esistente. L'approvazione lo riattiverà; non viene eseguito alcun provisioning.",
-    "openclawTool": "Versioni OpenClaw"
+    "openclawTool": "Versioni OpenClaw",
+    "billingTool": "Fatturazione →"
   },
   "channelUsers": {
     "title": "Utenti autorizzati",
@@ -390,7 +396,18 @@
     "remove": "Rimuovi",
     "alreadyAdded": "Questo ID utente è già autorizzato.",
     "telegramIdHelp": "Per trovare il tuo ID Telegram:\n1. Apri Telegram e invia un messaggio a @userinfobot\n2. Risponde istantaneamente con il tuo ID numerico\n3. Inserisci quel numero qui",
-    "discordIdHelp": "Per trovare il tuo ID Discord:\n1. Attiva la Modalità sviluppatore nelle impostazioni Discord (Avanzate)\n2. Clic destro sul tuo nome → Copia ID utente\n3. Inserisci quel numero qui"
+    "discordIdHelp": "Per trovare il tuo ID Discord:\n1. Attiva la Modalità sviluppatore nelle impostazioni Discord (Avanzate)\n2. Clic destro sul tuo nome → Copia ID utente\n3. Inserisci quel numero qui",
+    "threemaIdHelp": "Inserisci il tuo ID Threema — gli 8 caratteri mostrati nella tua app Threema sotto Impostazioni → Il mio ID Threema. Una volta aggiunto, potrai conversare con l'assistente direttamente da Threema.",
+    "threemaSetup": {
+      "title": "Aggiungi l'assistente a Threema",
+      "step1": "Apri Threema sul tuo telefono.",
+      "step2": "Tocca l'icona di scansione e scansiona questo QR code per aggiungere l'assistente ai contatti.",
+      "step3": "Quindi aggiungi il tuo ID Threema qui sotto.",
+      "qrAlt": "QR code per aggiungere {gateway} come contatto Threema",
+      "bannerTitle": "Configura Threema",
+      "bannerBody": "Apri Threema sul tuo telefono e scansiona il nostro QR code per aggiungere l'assistente ai contatti. Inserisci poi il tuo ID Threema qui sotto.",
+      "bannerButton": "Mostra QR code"
+    }
   },
   "team": {
     "title": "Team",
@@ -537,5 +554,105 @@
     "defaultPrefix": "Predefinito:",
     "saveOverride": "Salva override",
     "clearOverride": "Rimuovi override"
+  },
+  "adminBilling": {
+    "title": "Amministrazione fatturazione",
+    "subtitle": "Gestire prezzi della piattaforma, generare fatture e verificare lo stato di fatturazione delle organizzazioni.",
+    "backToAdmin": "Torna ad amministrazione",
+    "backToBilling": "Torna alla fatturazione",
+    "backToInvoices": "Torna alle fatture",
+    "totalOpenBalance": "Saldo aperto totale",
+    "orgsWithBalance": "Organizzazioni con saldo",
+    "overdueInvoices": "Fatture scadute",
+    "pricingTitle": "Prezzi",
+    "pricingDesc": "Prezzi piattaforma & skill, aliquota IVA.",
+    "pricingPageDesc": "Modificare i prezzi della piattaforma e i prezzi giornalieri per skill.",
+    "generateTitle": "Genera fattura",
+    "generateDesc": "Calcolare ed emettere una fattura per organizzazione e mese.",
+    "generatePageDesc": "Scegli organizzazione, periodo e lingua. L'anteprima mostra le righe calcolate; conferma emette la fattura e genera il PDF.",
+    "invoicesTitle": "Fatture",
+    "invoicesDesc": "Sfoglia le fatture, segna come pagate, scarica i PDF.",
+    "invoicesPageDesc": "Tutte le fatture emesse dalla piattaforma. Usa il filtro di stato per focalizzarti su voci aperte o scadute.",
+    "balancesTitle": "Organizzazioni con saldo aperto",
+    "orgIdCol": "ID org Zitadel",
+    "openCountCol": "Aperte",
+    "overdueCountCol": "Scadute",
+    "totalOpenCol": "Totale aperto",
+    "platformPricingTitle": "Prezzi piattaforma",
+    "monthlyFeeLabel": "Canone mensile tenant",
+    "setupFeeLabel": "Spese di attivazione tenant",
+    "threemaMessageLabel": "Threema per messaggio",
+    "vatRateLabel": "Aliquota IVA (CH/LI)",
+    "save": "Salva",
+    "saving": "Salvataggio…",
+    "savedOk": "Salvato",
+    "skillPricingTitle": "Prezzi skill",
+    "skillPricingDesc": "Prezzo giornaliero per skill. Una skill attiva in qualsiasi momento di un giorno UTC conta come un giorno fatturabile.",
+    "skillCol": "Skill",
+    "dailyPriceCol": "Prezzo/giorno",
+    "actionsCol": "",
+    "remove": "Rimuovi",
+    "noSkillsPriced": "Nessuna skill ha ancora un prezzo.",
+    "addSkillLabel": "Aggiungi skill",
+    "dailyPriceLabel": "Prezzo/giorno",
+    "add": "Aggiungi",
+    "confirmDeleteSkillPrice": "Rimuovere il prezzo per {skill}?",
+    "clickToEdit": "Clicca per modificare",
+    "generateFormTitle": "Genera fattura",
+    "noOrgsToGenerate": "Nessuna organizzazione con tenant trovata.",
+    "orgLabel": "Organizzazione",
+    "noBillingAddrTag": "nessun indirizzo di fatturazione",
+    "noBillingAddrWarning": "Questa organizzazione non ha un indirizzo di fatturazione registrato. Il cliente deve completare /settings/billing prima che una fattura possa essere emessa.",
+    "tenantsLabel": "tenant",
+    "yearLabel": "Anno",
+    "monthLabel": "Mese",
+    "localeLabel": "Lingua PDF",
+    "localeAuto": "Auto",
+    "previewBtn": "Anteprima",
+    "commitBtn": "Conferma & emetti",
+    "computing": "Calcolo…",
+    "confirmGenerate": "Emettere questa fattura? L'operazione assegna un numero di fattura e genera il PDF.",
+    "previewTitle": "Anteprima bozza",
+    "warningsTitle": "Avvisi",
+    "noLinesGenerated": "Nessuna riga fatturabile per questo periodo.",
+    "descCol": "Descrizione",
+    "qtyCol": "Qtà",
+    "unitPriceCol": "Prezzo unitario",
+    "amountCol": "Importo (CHF)",
+    "subtotal": "Subtotale",
+    "vat": "IVA",
+    "total": "Totale",
+    "statusFilterLabel": "Stato",
+    "allStatuses": "Tutti",
+    "monthFilterLabel": "Periodo",
+    "clearFilter": "Pulisci",
+    "loading": "Caricamento…",
+    "noInvoicesFound": "Nessuna fattura corrisponde ai filtri.",
+    "invoiceNumberCol": "Numero",
+    "orgCol": "Organizzazione",
+    "periodCol": "Periodo",
+    "statusCol": "Stato",
+    "totalCol": "Totale",
+    "dueCol": "Scadenza",
+    "status_draft": "Bozza",
+    "status_open": "Aperta",
+    "status_paid": "Pagata",
+    "status_overdue": "Scaduta",
+    "status_void": "Annullata",
+    "status_uncollectible": "Inesigibile",
+    "dueOnLabel": "Scadenza",
+    "totalLabel": "Totale",
+    "downloadPdfBtn": "Scarica PDF",
+    "markPaidBtn": "Segna come pagata",
+    "paidNotePlaceholder": "Nota opzionale (es. riferimento bancario, data di pagamento)",
+    "confirm": "Conferma",
+    "cancel": "Annulla",
+    "deleteBtn": "Elimina",
+    "deleting": "Eliminazione…",
+    "deleteHint": "Eliminazione definitiva (strumento di test). Il numero rimane consumato.",
+    "confirmDeleteInvoice": "Eliminare la fattura {num}? Eliminazione definitiva — il numero rimane consumato.",
+    "paidOnLabel": "Pagata il",
+    "lineItemsTitle": "Righe",
+    "billToSnapshotTitle": "Destinatario"
   }
 }

src/middleware.ts

@@ -40,5 +40,10 @@ export default async function middleware(request: NextRequest) {
 }
 
 export const config = {
-  matcher: ["/((?!_next|favicon.ico|api).*)"],
+  // Excludes _next/* internal routes, the favicon, api routes, AND any
+  // path containing a dot (covers all static files served from public/,
+  // e.g. /threema/qr_code_AIAGENT.png). Without the dot exclusion, the
+  // i18n middleware prepends the locale ("/en/threema/qr_code_AIAGENT.png")
+  // and the file is not found.
+  matcher: ["/((?!_next|favicon.ico|api|.*\\..*).*)"],
 };

src/types/index.ts

@@ -412,3 +412,238 @@ export interface SupportTicketDetail {
   ticket: SupportTicket;
   comments: SupportTicketComment[];
 }
+
+// ---------------------------------------------------------------------------
+// Billing — Phase 1: pricing, lifecycle, and events
+// ---------------------------------------------------------------------------
+//
+// All money values are numbers (CHF). The DB stores NUMERIC and the
+// helpers coerce to Number on read. JS floats are exact for integers
+// up to 2^53; at this domain (CHF amounts to 2 decimals, unit prices
+// to 5 decimals) precision is fine. The Phase 2 billing computation
+// will still do arithmetic carefully (sum in cents, round at the
+// end) to avoid 0.1 + 0.2 surprises.
+
+/**
+ * Single-row platform pricing config. Editable via the admin
+ * pricing page (Phase 2). The `vatRateChli` field is the rate
+ * applied to invoices whose billing address resolves to CH/LI;
+ * foreign customers' rates are decided per-invoice from address +
+ * VAT number, not from this config.
+ */
+export interface PlatformPricing {
+  tenantMonthlyFeeChf: number;
+  tenantSetupFeeChf: number;
+  threemaMessageChf: number;
+  vatRateChli: number;
+  updatedAt: string;
+}
+
+/**
+ * Per-package daily price. Phase 2's admin UI restricts setting
+ * these to skill-category packages, but the schema accepts any
+ * package id. A row's existence is what activates billing for that
+ * package; deleting the row makes it free without affecting the
+ * append-only event log.
+ */
+export interface SkillPricing {
+  skillId: string;
+  dailyPriceChf: number;
+  createdAt: string;
+  updatedAt: string;
+}
+
+/**
+ * Tenant lifecycle bookends mirrored from K8s into Postgres so
+ * deleted tenants still have a billing record for their final
+ * invoice. `createdAt` matches PiecedTenant.metadata.creationTimestamp
+ * at the moment of approval; `deletedAt` is stamped when the admin
+ * delete endpoint runs.
+ */
+export interface TenantBillingLifecycle {
+  tenantName: string;
+  zitadelOrgId: string;
+  createdAt: string;
+  deletedAt: string | null;
+}
+
+/**
+ * Append-only enable/disable event for a package on a tenant.
+ * Phase 2's billing computation reads the event stream within the
+ * billing window and collapses it to a set of UTC days during
+ * which the package was active.
+ */
+export interface TenantSkillEvent {
+  id: string;
+  tenantName: string;
+  zitadelOrgId: string;
+  skillId: string;
+  eventKind: "enabled" | "disabled";
+  occurredAt: string;
+}
+
+/**
+ * Append-only suspend/resume event. Recorded by the portal at
+ * command time (when PATCH spec.suspend lands), not at operator
+ * reconcile time. The few-second delta is irrelevant for monthly
+ * billing.
+ */
+export interface TenantSuspensionEvent {
+  id: string;
+  tenantName: string;
+  zitadelOrgId: string;
+  eventKind: "suspended" | "resumed";
+  occurredAt: string;
+}
+
+/**
+ * Per-org billing posture and Stripe linkage. Distinct from
+ * OrgBilling (which is the customer-editable address/VAT block):
+ * this one is admin-controlled.
+ *
+ * `payByInvoice` flips the onboarding gate (Phase 4): when true,
+ * tenant requests for this org are approvable without a card on
+ * file. When false, the customer must have a validated Stripe
+ * payment method before admin approval is allowed.
+ *
+ * `stripeCustomerId` is populated by Phase 4's onboarding flow.
+ * `autoInvoiceEnabled` / `autoRemindersEnabled` give admin per-org
+ * kill switches for the Phase 6 cron without disabling the cron
+ * globally.
+ */
+export interface OrgBillingConfig {
+  zitadelOrgId: string;
+  payByInvoice: boolean;
+  stripeCustomerId: string | null;
+  autoInvoiceEnabled: boolean;
+  autoRemindersEnabled: boolean;
+  createdAt: string;
+  updatedAt: string;
+}
+
+// ---------------------------------------------------------------------------
+// Billing — Phase 2: invoices and lines
+// ---------------------------------------------------------------------------
+
+export type InvoiceStatus =
+  | "draft"
+  | "open"
+  | "paid"
+  | "overdue"
+  | "void"
+  | "uncollectible";
+
+export type InvoicePaymentMethod = "invoice" | "card";
+
+export type InvoiceLineKind =
+  | "tenant_monthly"
+  | "tenant_setup"
+  | "ai_usage"
+  | "threema_messages"
+  | "skill_usage"
+  | "adjustment";
+
+/**
+ * Snapshot of the customer's billing details captured at invoice
+ * issue time. Subsequent edits to org_billing do not mutate
+ * historical invoices.
+ *
+ * Field names mirror OrgBilling (minus the timestamps) so the
+ * snapshot is a straightforward copy at issue time.
+ */
+export interface InvoiceBillingSnapshot {
+  companyName: string;
+  streetAddress: string;
+  postalCode: string;
+  city: string;
+  country: string;
+  vatNumber: string | null;
+  billingEmail: string;
+  notes: string | null;
+}
+
+/**
+ * One line on an invoice. The `metadata` shape varies by `kind`:
+ *   tenant_monthly:   { proration_days, days_in_month, billable_days, suspended_days }
+ *   tenant_setup:     {}
+ *   ai_usage:         { litellm_key_alias, spend_chf, requests }
+ *   threema_messages: { in_count, out_count, total_count }
+ *   skill_usage:      { skill_id, billable_days, event_count }
+ *   adjustment:       { reason, admin_user_id }
+ */
+export interface InvoiceLine {
+  id: string;
+  invoiceId: string;
+  tenantName: string | null;
+  kind: InvoiceLineKind;
+  description: string;
+  quantity: number;
+  unitLabel: string | null;
+  unitPriceChf: number;
+  amountChf: number;
+  metadata: Record<string, unknown> | null;
+  displayOrder: number;
+}
+
+/**
+ * Immutable invoice record. The PDF blob is fetched separately via
+ * the download endpoint to avoid loading bytea on every list query.
+ */
+export interface Invoice {
+  id: string;
+  invoiceNumber: string;
+  zitadelOrgId: string;
+  periodStart: string; // ISO date (YYYY-MM-DD)
+  periodEnd: string;
+  issuedAt: string;
+  dueAt: string;
+  subtotalChf: number;
+  vatRate: number;
+  vatAmountChf: number;
+  totalChf: number;
+  status: InvoiceStatus;
+  locale: string;
+  paymentMethod: InvoicePaymentMethod;
+  billingSnapshot: InvoiceBillingSnapshot;
+  stripePaymentIntentId: string | null;
+  pdfFilename: string | null;
+  hasPdf: boolean; // computed: pdf_data IS NOT NULL
+  adminNotes: string | null;
+  paidAt: string | null;
+  paidBy: string | null;
+  paidMethodDetail: string | null;
+  createdAt: string;
+}
+
+/** Invoice with its line items, used by detail views. */
+export interface InvoiceDetail {
+  invoice: Invoice;
+  lines: InvoiceLine[];
+}
+
+/**
+ * In-memory draft produced by the computation pipeline before the
+ * invoice is allocated a number and persisted. Used by both the
+ * preview endpoint (return without persisting) and the commit
+ * endpoint (compute → persist atomically).
+ */
+export interface InvoiceDraft {
+  zitadelOrgId: string;
+  periodStart: string;
+  periodEnd: string;
+  dueAt: string;
+  locale: string;
+  paymentMethod: InvoicePaymentMethod;
+  billingSnapshot: InvoiceBillingSnapshot;
+  lines: Omit<InvoiceLine, "id" | "invoiceId">[];
+  subtotalChf: number;
+  vatRate: number;
+  vatAmountChf: number;
+  totalChf: number;
+  /**
+   * Non-blocking warnings the compute pipeline surfaced — e.g.
+   * "tenant X has no LiteLLM team, AI usage skipped". Rendered in
+   * the admin UI to help the operator decide whether to commit.
+   */
+  warnings: string[];
+}