improvement(react-query): codebase-wide audit — server-state hooks, webhook coherence, resume migration (#5024)

* improvement(react-query): codebase-wide audit — server-state hooks, webhook coherence, resume migration

* chore(react-query): add static pattern linter + address review feedback

- add scripts/check-react-query-patterns.ts (staleTime/signal/key-factory/inline-key
  enforcement) wired into CI as check:react-query; strict zone hooks/queries/**, ratchet elsewhere
- fix(resume): use same-origin relative path for resume POST (getBaseUrl could cross origin
  on whitelabel/preview hosts and drop session cookies) — Cursor Bugbot
- remove explanatory inline comments in favor of TSDoc per repo convention

.github/workflows/test-build.yml

@@ -112,6 +112,9 @@ jobs:
       - name: Zustand v5 selector audit
         run: bun run check:zustand-v5
 
+      - name: React Query pattern audit
+        run: bun run check:react-query
+
       - name: Verify realtime prune graph
         run: bun run check:realtime-prune