docs: record plugin integration gate hold

.project-docs/30-worklog/tasks/20260903-plugin-navigation-integration-4f7c2a96.md

@@ -8,7 +8,7 @@
 - Worktree: D:\Datas\OthersProjects\makelore
 - Base commit: e9875145b41a2cb1827de10d27a4fc6a352704ea
 - Owner: codex-root
-- Status: Ready for Integration
+- Status: In Progress
 
 ## Scope
 
@@ -79,11 +79,16 @@
 - Source evidence retained by R4: full unit 1842 passed / 2 skipped plus pressure 1
   passed; lint 0 errors with 5 pre-existing warnings; all Vite targets passed; targeted
   Electron Plugin E2E passed 4/4.
-- `check_project_docs`, task-aware document drift, staged diff check, exact branch/HEAD,
-  and final root-status checks are part of the closing gate.
+- `check_project_docs`, staged diff check, exact branch/HEAD, focused tests, and
+  typecheck passed. The task-aware drift script now reports only the three
+  pre-existing untracked foreign task records; they predate this integration and were
+  deliberately left unchanged, but the script has no pre-existing-path exemption.
 
 ## Follow-ups
 
+- Closing the task documentation gate and releasing the dirty-root integration lock
+  requires explicit handling authorization for the three preserved foreign task
+  records; they must not be deleted, adopted, or permanently moved.
 - A rebuilt and installed client smoke remains a separate release activity; it was not
   authorized or required by this source integration.