fix: Register MatchTimerComponent with message bus

- Add message_bus.register_component() call in MatchTimerComponent constructor
- Add message_bus.unregister_component() call in shutdown method
- Fixes 'Recipient match_timer not found' warning when sending messages
- Ensures proper message routing to the match timer component
- Component can now receive START_GAME, SCHEDULE_GAMES, and CUSTOM messages

mbetterclient/core/match_timer.py

@@ -36,6 +36,9 @@ class MatchTimerComponent(ThreadedComponent):
         self._timer_lock = threading.RLock()
         self._last_update = time.time()
 
+        # Register component with message bus
+        self.message_bus.register_component(self.name)
+
         # Register message handlers
         self.message_bus.subscribe(self.name, MessageType.START_GAME, self._handle_start_game)
         self.message_bus.subscribe(self.name, MessageType.SCHEDULE_GAMES, self._handle_schedule_games)
@@ -97,6 +100,9 @@ class MatchTimerComponent(ThreadedComponent):
             self.current_fixture_id = None
             self.current_match_id = None
 
+        # Unregister from message bus
+        self.message_bus.unregister_component(self.name)
+
         logger.info("MatchTimer component shutdown")
 
     def get_timer_state(self) -> Dict[str, Any]: