fix: Redis bool storage, tool tracking matching, e2e fixture scope

- Convert booleans to strings for Redis hset (Redis doesn't accept bool)
- Extract capability from delegate_to_X tool names for tracking
- Use loop_scope="module" for pytest-asyncio module-scoped fixtures
- Add note about using venv for tests in AGENTS.md

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

tests/e2e/test_api_endpoints.py

@@ -8,8 +8,8 @@ These tests hit the actual running server and test the full stack:
 - Response formatting
 """
 import pytest
+import pytest_asyncio
 import httpx
-import asyncio
 from typing import AsyncGenerator
 
 # Test server base URL (assumes server is running on localhost:8777 via ./wakeup.sh)
@@ -17,15 +17,7 @@ BASE_URL = "http://localhost:8777"
 API_TIMEOUT = 120.0  # 120 second timeout for LLM calls
 
 
-@pytest.fixture(scope="module")
-def event_loop():
-    """Create event loop for async tests."""
-    loop = asyncio.get_event_loop_policy().new_event_loop()
-    yield loop
-    loop.close()
-
-
-@pytest.fixture(scope="module")
+@pytest_asyncio.fixture(loop_scope="module", scope="module")
 async def client() -> AsyncGenerator[httpx.AsyncClient, None]:
     """HTTP client for making requests."""
     async with httpx.AsyncClient(base_url=BASE_URL, timeout=API_TIMEOUT) as client: