fix: Resolve pre-commit linting failures in PR1

Why this change is needed:
The CI pipeline was failing on the "Run pre-commit" step with 6 F841
errors (unused variables) and 1 formatting issue (missing trailing comma).
This was blocking the PR from being merged.

How it solves it:
1. Added trailing comma to _get_workspace_lock() function signature
   to match Python formatting standards
2. Changed unused lock variables (lock1, lock2) to underscore (_)
   in test_finalization_cleanup.py to indicate intentional disposal
   of return values (locks are created for their side effects only)
3. Applied ruff-format auto-formatting fixes

Impact:
- All pre-commit checks now pass locally
- CI pipeline should pass on next push
- No functional changes, only code style fixes

Testing:
Verified with: uv run pre-commit run --files <modified files>
All checks passed: trailing whitespace, end of files, ruff-format, ruff

lightrag/kg/shared_storage.py

@@ -1051,7 +1051,7 @@ def _get_workspace_lock(
     lock_type: str,
     global_lock: LockType,
     workspace: str = "",
-    enable_logging: bool = False
+    enable_logging: bool = False,
 ) -> UnifiedLock:
     """Internal common implementation for workspace-aware locks.
 
@@ -1126,7 +1126,9 @@ def get_internal_lock(workspace: str = "", enable_logging: bool = False) -> Unif
         workspace: Optional workspace identifier for namespace isolation.
         enable_logging: Enable lock operation logging.
     """
-    return _get_workspace_lock("internal_lock", _internal_lock, workspace, enable_logging)
+    return _get_workspace_lock(
+        "internal_lock", _internal_lock, workspace, enable_logging
+    )
 
 
 def get_storage_lock(workspace: str = "", enable_logging: bool = False) -> UnifiedLock:
@@ -1136,12 +1138,12 @@ def get_storage_lock(workspace: str = "", enable_logging: bool = False) -> Unifi
         workspace: Optional workspace identifier for namespace isolation.
         enable_logging: Enable lock operation logging.
     """
-    return _get_workspace_lock(
-        "storage_lock", _storage_lock, workspace, enable_logging
-    )
+    return _get_workspace_lock("storage_lock", _storage_lock, workspace, enable_logging)
 
 
-def get_pipeline_status_lock(workspace: str = "", enable_logging: bool = False) -> UnifiedLock:
+def get_pipeline_status_lock(
+    workspace: str = "", enable_logging: bool = False
+) -> UnifiedLock:
     """Return unified pipeline status lock for concurrent processing control.
 
     Args:

tests/test_finalization_cleanup.py

@@ -33,8 +33,8 @@ def test_finalization_clears_workspace_locks():
     shared_storage.initialize_share_data(workers=2)
 
     # Create some workspace locks
-    lock1 = shared_storage.get_storage_lock(workspace="tenant1")
-    lock2 = shared_storage.get_pipeline_status_lock(workspace="tenant2")
+    _ = shared_storage.get_storage_lock(workspace="tenant1")
+    _ = shared_storage.get_pipeline_status_lock(workspace="tenant2")
 
     # Verify locks were created
     assert "tenant1:storage_lock" in shared_storage._sync_locks
@@ -63,7 +63,7 @@ def test_reinitialize_after_finalization():
     """
     # First initialization
     shared_storage.initialize_share_data(workers=2)
-    lock1 = shared_storage.get_storage_lock(workspace="tenant1")
+    _ = shared_storage.get_storage_lock(workspace="tenant1")
     assert "tenant1:storage_lock" in shared_storage._sync_locks
 
     # Finalize
@@ -74,7 +74,7 @@ def test_reinitialize_after_finalization():
     shared_storage.initialize_share_data(workers=2)
 
     # Should work without EOFError/BrokenPipeError
-    lock2 = shared_storage.get_storage_lock(workspace="tenant2")
+    _ = shared_storage.get_storage_lock(workspace="tenant2")
     assert "tenant2:storage_lock" in shared_storage._sync_locks
 
     # Clean up
@@ -90,7 +90,7 @@ def test_single_process_finalization():
     shared_storage.initialize_share_data(workers=1)
 
     # Create some workspace locks
-    lock1 = shared_storage.get_storage_lock(workspace="tenant1")
+    _ = shared_storage.get_storage_lock(workspace="tenant1")
     assert "tenant1:storage_lock" in shared_storage._sync_locks
 
     # Finalize
@@ -103,7 +103,7 @@ def test_single_process_finalization():
 
     # Re-initialize should work
     shared_storage.initialize_share_data(workers=1)
-    lock2 = shared_storage.get_storage_lock(workspace="tenant2")
+    _ = shared_storage.get_storage_lock(workspace="tenant2")
     assert "tenant2:storage_lock" in shared_storage._sync_locks
 
     # Clean up