test(mutex): add comprehensive unit tests for ipc::sync::mutex

- Test mutex construction (default and named)
- Test lock/unlock operations
- Test try_lock functionality
- Test timed lock with various timeout values
- Test critical section protection
- Test concurrent access and contention scenarios
- Test inter-thread synchronization with named mutex
- Test resource cleanup (clear, clear_storage)
- Test native handle access
- Test edge cases (reopen, zero timeout, rapid operations)
- Test exception safety of try_lock

Author: mutouyun