fix: WOPI registration on restart + Collabora readiness probes

- Add readiness/liveness probes to Collabora (GET /hosting/discovery)
- Add init container to Drive backend that waits for Collabora and runs
  trigger_wopi_configuration on every pod start — fixes WOPI silently
  breaking after server restarts (chart Job only ran on sunbeam apply)
- Add OIDC_RESPONSE_MODE=query to Projects config

base/lasuite/projects-config.yaml

@@ -16,6 +16,10 @@ data:
   OIDC_IGNORE_ROLES: "true"
   OIDC_ADMIN_ROLES: "*"
   OIDC_FULLNAME_ATTRIBUTES: "given_name,family_name"
+  # Planka defaults to response_mode=fragment, which returns the auth code in the
+  # URL hash (#code=...). The SPA callback handler doesn't parse fragments correctly,
+  # causing a silent auth loop. Use query mode so the code comes as ?code=...
+  OIDC_RESPONSE_MODE: "query"
 
   # S3 file storage via SeaweedFS
   S3_ENDPOINT: "http://seaweedfs-filer.storage.svc.cluster.local:8333"