Add initial Portal version

.env.example

@@ -0,0 +1,12 @@
+# NextAuth
+NEXTAUTH_URL=https://app.pieced.ch
+NEXTAUTH_SECRET=  # openssl rand -base64 32
+
+# ZITADEL OIDC
+ZITADEL_ISSUER=https://auth.pieced.ch
+ZITADEL_CLIENT_ID=
+ZITADEL_CLIENT_SECRET=
+
+# LiteLLM (in-cluster)
+LITELLM_INTERNAL_URL=http://litellm.inference.svc:4000
+LITELLM_MASTER_KEY=