test: repair full suite — hang fix, stale-test updates, patch hygiene, timeout backstop

Suite went from 27 failures plus one permanent hang (never finished) to
1846 passed / 0 failed in ~85s, including under FORCE_COLOR.

- office_shutdown_lifecycle: construct WSHandler via the real __init__
  (helper) instead of hand-copied __new__ stubs that drift from the
  constructor (#11 added _runtime_status_sync_task and the stubs hung);
  the formerly-hanging wait now has a 5s wait_for.
- import-time patch hygiene: company_recruiter / company_reorg /
  engine_session_defaults replaced module-level permanent
  tempfile.TemporaryDirectory monkeypatching with paired
  setUpModule/tearDownModule, fixing order-dependent sqlite failures in
  transcript_pagination during full runs.
- stale tests updated to current product semantics: resume stubs use
  status="done" (failed is deliberately non-resumable), fix4 asserts the
  native review contract through build_company_work_item_contract,
  delivery fixture carries user_visible/feedback_scope=final, ownership
  doc names progress_log, session compression calls
  maybe_compact_session(force=True) explicitly, hard delete removes the
  work item row, parallel-isolation asserts delegate rebind and stubs
  _get_project_delegate, role update goes through OrgService on an
  editable custom org (plus read-only rejection case), collab_rpc patches
  the single os.name decision point instead of poisoning pathlib, codex
  no-pty builds inside the patch, identity-guard false positives reworded.
- cli_board actions rewritten against the real OfficeServiceFactory seam
  with a tempdir OPC_HOME (old direct-engine stubs were never consulted
  and the tests wrote into the real OPC home).
- cli_app assertions strip ANSI via _plain_output so a color-forcing
  shell (FORCE_COLOR) cannot break plain-text expectations.
- deleted never-runnable test_org_concurrency (pytest.mark.asyncio
  without the plugin, stdlib-only assertions) and three dead skipped
  filesystem-handoff tests.
- pyproject: dev extra (pytest, pytest-timeout) and a 300s per-test
  timeout backstop so a wedged test fails instead of stalling the suite.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

tests/test_work_item_runtime_links.py

@@ -328,7 +328,7 @@ class WorkItemRuntimeLinkTests(unittest.IsolatedAsyncioTestCase):
             {item.work_item_id: canonical.id},
         )
 
-    async def test_task_delete_cascades_link_and_allows_rematerialization(self) -> None:
+    async def test_task_delete_cascades_link_and_work_item_row(self) -> None:
         item = _work_item("wi-cascade")
         task = _task("task-cascade")
         await self.store.save_delegation_work_item(item)
@@ -337,10 +337,13 @@ class WorkItemRuntimeLinkTests(unittest.IsolatedAsyncioTestCase):
 
         await self.store.hard_delete_task(task.id)
 
+        # Hard delete removes the linked work item row together with the
+        # runtime traces, so the identity cannot be rematerialized.
         self.assertEqual(await self.store.get_runtime_links_for_work_items([item.work_item_id]), {})
+        self.assertIsNone(await self.store.get_delegation_work_item(item.work_item_id))
         replacement = _task("task-cascade-replacement")
         await self.store.save_task(replacement)
-        self.assertTrue(await self.store.link_work_item_runtime_task(item.work_item_id, replacement.id))
+        self.assertFalse(await self.store.link_work_item_runtime_task(item.work_item_id, replacement.id))
 
     async def test_transition_from_task_uses_structured_link_without_legacy_metadata(self) -> None:
         item = _work_item("wi-transition")