merge: candidate codegraph check-ignore fixup into local_dev

.doc/ops/short-term/2026-09-24-codegraph-governance.md

@@ -26,3 +26,4 @@ policy_revision: codegraph-governance-2026-09-24-r1
 - unittest（scripts/tests）+ 针对性正负例
 - 真实命令：cleanup report / docs drift / hooks codegraph-sync
 - 测试报告：`.doc/test-reports/2026-09-24-codegraph-governance-test-report.md`（工程规范变更，PI/全量 Go 标 NOT REQUIRED）
+- fixup landed note: trailing-slash check-ignore

scripts/agent_worktree.py

@@ -39,7 +39,7 @@ def maybe_codegraph_init(path, *, timeout=180):
         return {'status': 'not_installed'}
     target = Path(path).resolve()
     ignored = subprocess.run(
-        ['git', '-C', str(target), 'check-ignore', '-q', '--', '.codegraph'],
+        ['git', '-C', str(target), 'check-ignore', '-q', '--', '.codegraph/'],
         capture_output=True, check=False).returncode == 0
     if not ignored:
         print(json.dumps({

scripts/agentctl.py

@@ -755,8 +755,9 @@ def codegraph_is_ignored(path):
     """True when git will not track .codegraph under path (safe to init)."""
     target = Path(path).resolve()
     try:
+        # Pattern `.codegraph/` only matches directories; probe with trailing slash.
         completed = subprocess.run(
-            ['git', '-C', str(target), 'check-ignore', '-q', '--', '.codegraph'],
+            ['git', '-C', str(target), 'check-ignore', '-q', '--', '.codegraph/'],
             capture_output=True, check=False)
         return completed.returncode == 0
     except OSError: