feat: La Suite email/messages, buildkitd, monitoring, vault and storage updates

- Add Messages (email) service: backend, frontend, MTA in/out, MPA, SOCKS
  proxy, worker, DKIM config, and theme customization
- Add Collabora deployment for document collaboration
- Add Drive frontend nginx config and values
- Add buildkitd namespace for in-cluster container builds
- Add SeaweedFS remote sync and additional S3 buckets
- Update vault secrets across namespaces (devtools, lasuite, media,
  monitoring, ory, storage) with expanded credential management
- Update monitoring: rename grafana→metrics OAuth2Client, add Prometheus
  remote write and additional scrape configs
- Update local/production overlays with resource patches
- Remove stale login-ui resource patch from production overlay

base/media/vault-secrets.yaml

@@ -23,6 +23,9 @@ spec:
   type: kv-v2
   path: livekit
   refreshAfter: 30s
+  rolloutRestartTargets:
+    - kind: Deployment
+      name: livekit-server
   destination:
     name: livekit-api-credentials
     create: true
@@ -31,4 +34,4 @@ spec:
       excludeRaw: true
       templates:
         keys.yaml:
-          text: "{{ index .Secrets \"keys.yaml\" }}"
+          text: '{{ index .Secrets "api-key" }}: {{ index .Secrets "api-secret" }}'