fix(tui): add type annotation to _catalog_lock

- Add explicit type annotation: _catalog_lock: Lock = threading.Lock()
- Import Lock from threading module
- Ensures proper type checking and IDE support

src/cleveragents/tui/input/reference_parser.py

@@ -7,6 +7,7 @@ import threading
 import time
 from dataclasses import dataclass
 from pathlib import Path
+from threading import Lock
 
 from cleveragents.tui.search.fuzzy import rank_candidates
 
@@ -14,7 +15,7 @@ _REFERENCE_TYPES = ("project", "plan", "resource", "actor", "tool", "skill")
 _IGNORED_DIRS = {".git", ".venv", "node_modules", "__pycache__", ".mypy_cache"}
 _CATALOG_LIMIT = 400
 _CATALOG_CACHE_TTL_SECONDS = 5.0
-_catalog_lock = threading.Lock()
+_catalog_lock: Lock = threading.Lock()
 _catalog_cache: dict[str, object] = {"cwd": None, "created_at": 0.0, "catalog": None}
 
 
@@ -77,8 +78,7 @@ def _catalog() -> dict[str, list[str]]:
             if (cwd / "examples" / "actors").is_dir()
             else [],
             "tool": sorted(
-                f"local/{file.stem}"
-                for file in (cwd / "examples" / "tools").glob("*.y*ml")
+                f"local/{file.stem}" for file in (cwd / "examples" / "tools").glob("*.y*ml")
             )
             if (cwd / "examples" / "tools").is_dir()
             else [],