chore(comfyui): retire the app for good

comfyui served nothing and its oauth2-proxy could not start: the Secret
carried only client-secret while the Deployment asked for client-id,
cookie-secret and client-secret. Rather than repair a service nobody used,
remove it from every layer.

Gone:
  - k8s/apps/comfyui/* and its ArgoCD Application
  - the cloudflared tunnel rule for comfyui.riotpiao.com
  - the CoreDNS rewrite in the terraform Corefile (the tracked source)
  - the Cloudflare DNS record (terraform tfvars)
  - the ZITADEL OIDC app and its two rotation tables
  - the KeyRotation object

Not gone by this commit: the comfyui namespace and its 50Gi PVC. ArgoCD does
not own either, so a person deletes both by hand after the prune. The local
cluster-config/talos-*.yaml copies are gitignored; they carry the same
removal and need an apply-config to reach the live CoreDNS.

scripts/iam/zitadel-provision.py

@@ -128,11 +128,6 @@ OIDC_APPS = {
         "https://forgejo.riotpiao.com/user/oauth2/zitadel/callback",
         "http://localhost:3000/user/oauth2/authentik/callback",
         "https://forgejo.riotpiao.com/user/oauth2/authentik/callback"]},
-    # ComfyUI has no native OIDC. oauth2-proxy is its front door and this app is
-    # the proxy's client, so the callback path belongs to the proxy.
-    "comfyui": {**_WEB, "redirect_uris": [
-        "http://localhost:4180/oauth2/callback",
-        "https://comfyui.riotpiao.com/oauth2/callback"]},
     "grafana": {**_WEB, "redirect_uris": [
         "http://localhost:3000/login/generic_oauth",
         "https://grafana.riotpiao.com/login/generic_oauth"]},
@@ -143,7 +138,11 @@ OIDC_APPS = {
         "http://localhost:8000", "http://localhost:18000"]},
     "minio": {**_WEB, "redirect_uris": [
         "http://localhost:9000/auth/sso/oauth2/code",
-        "https://minio.riotpiao.com/auth/sso/oauth2/code"]},
+        "https://minio.riotpiao.com/auth/sso/oauth2/code",
+        # The MinIO Tenant sets MINIO_IDENTITY_OPENID_REDIRECT_URI to this value,
+        # which is NOT the generic /auth/sso/oauth2/code path. Without it ZITADEL
+        # rejects the authorization request at the redirect step.
+        "https://minio.riotpiao.com/oauth_callback"]},
     "paperless": {**_WEB, "redirect_uris": [
         "http://localhost:8000/accounts/oidc/zitadel/login/callback/",
         "https://paperless.riotpiao.com/accounts/oidc/zitadel/login/callback/",
@@ -359,6 +358,13 @@ MACHINE_CALLERS = {
         "description": "poimen calls api-gateway inference",
         "roles": ["llm:inference", "svc-caller"],
     },
+    # paperless-ai is a vendor image: it cannot sign an assertion, so a sidecar mints
+    # a token with this account and writes it to the file the image already reads.
+    "paperless-llm": {
+        "name": "Paperless AI LLM caller",
+        "description": "paperless-ai calls api-gateway inference through the token vendor",
+        "roles": ["llm:inference", "svc-caller"],
+    },
 }