fix: rename test_hook to check_hook to fix pytest fixture error

The test_hook helper function was being incorrectly interpreted by pytest
as a test function due to the 'test_' prefix. Pytest attempted to inject
fixtures for its parameters (command, should_block), causing an error.

Changes:
- Renamed test_hook() to check_hook() in test_security.py
- Updated all call sites (lines 206 and 276)
- Updated docstring to clarify it's a helper function

This fixes the "fixture 'command' not found" error when running pytest.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

test_security.py

@@ -18,8 +18,8 @@ from security import (
 )
 
 
-def test_hook(command: str, should_block: bool) -> bool:
+def check_hook(command: str, should_block: bool) -> bool:
-    """Test a single command against the security hook."""
+    """Check a single command against the security hook (helper function)."""
     input_data = {"tool_name": "Bash", "tool_input": {"command": command}}
     result = asyncio.run(bash_security_hook(input_data))
     was_blocked = result.get("decision") == "block"
@@ -203,7 +203,7 @@ def main():
     ]
 
     for cmd in dangerous:
-        if test_hook(cmd, should_block=True):
+        if check_hook(cmd, should_block=True):
             passed += 1
         else:
             failed += 1
@@ -273,7 +273,7 @@ def main():
     ]
 
     for cmd in safe:
-        if test_hook(cmd, should_block=False):
+        if check_hook(cmd, should_block=False):
             passed += 1
         else:
             failed += 1