Threema QR: on-demand modal + auto-open on first add

src/lib/threema-gateway-config.ts

@@ -0,0 +1,33 @@
+/**
+ * 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 (today only ThreemaSetup) to accept the
+ *      gateway info as a prop and pass it from a server component.
+ *
+ * In display contexts we strip the leading asterisk from the Threema
+ * ID — customers don't understand the `*X` prefix convention used for
+ * Gateway accounts, and the QR code carries the real value anyway. We
+ * keep the asterisk only for places where the technical value matters
+ * (server-side message routing, debug logs).
+ */
+
+export const THREEMA_GATEWAY = {
+  /** Technical Threema Gateway ID, with leading asterisk. */
+  id: "*AIAGENT",
+  /** Display name shown to customers (no asterisk). */
+  displayName: "AIAGENT",
+  /** Public path to the QR code PNG served from `public/`. */
+  qrCodePath: "/threema/qr_code_AIAGENT.png",
+} as const;