AuditLog deadlock: log() held self._lock and called _open() which called
close() which tried to acquire self._lock again — RLock not needed,
refactored to _close_locked() (called while already holding lock).
pyproject.toml: pytest-asyncio + httpx in dev deps.
test_main.py:
- lifecycle integration test (MUST-HAVE): IDLE→ARMED→PRIMED→auto-poll
starts→FIRE→auto-poll stops, asserts scheduler event order
- asyncio import for async test marker
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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