refactor(bridge): migrate gravity bridge to pure websocket gateway architecture, deleting legacy local file scanners and dependencies

main.py

@@ -10,7 +10,6 @@ import os
 import sys
 
 from config import Config
-from watcher import BrainWatcher
 from bot import GravityBot
 
 # Logging setup (UTF-8 forced for Windows cp949 compatibility)
@@ -51,45 +50,32 @@ async def main():
     # Get the running loop
     loop = asyncio.get_running_loop()
 
-    # ── Local / Gateway mode ──
-
     # Create components
-    watcher = None
-    if Config.BOT_MODE != 'gateway':
-        watcher = BrainWatcher(event_queue, loop)
     bot = GravityBot(event_queue)
 
     try:
-        # Start watcher (local mode only — gateway receives data via HTTP)
-        if watcher:
-            watcher.start()
-            logger.info(f"Watcher started, {len(watcher.known_sessions)} existing sessions")
-        else:
-            logger.info("Gateway mode — watcher disabled (data via HTTP API)")
+        # Start Gateway HTTP API + WebSocket Hub
+        from gateway import GatewayAPI
+        from hub import WSHub
+        from auth import TokenManager
 
-        # Start Gateway HTTP API + WebSocket Hub (gateway mode)
-        if Config.BOT_MODE == 'gateway':
-            from gateway import GatewayAPI
-            from hub import WSHub
-            from auth import TokenManager
+        # Initialize Hub
+        token_mgr = TokenManager(
+            secret=Config.GRAVITY_HUB_SECRET,
+            registration_code=Config.GRAVITY_REGISTRATION_CODE,
+        )
+        hub = WSHub(token_mgr)
 
-            # Initialize Hub
-            token_mgr = TokenManager(
-                secret=Config.GRAVITY_HUB_SECRET,
-                registration_code=Config.GRAVITY_REGISTRATION_CODE,
-            )
-            hub = WSHub(token_mgr)
-
-            gateway_port = int(os.environ.get('GATEWAY_PORT', '8585'))
-            gateway = GatewayAPI(
-                bot, port=gateway_port,
-                api_key=Config.GATEWAY_API_KEY,
-                hub=hub,
-            )
-            bot.gateway = gateway  # Enable _write_command → gateway.push_command
-            bot.hub = hub          # Enable Hub-based message routing
-            await gateway.start()
-            logger.info(f"Gateway API + WS Hub running on port {gateway_port}")
+        gateway_port = int(os.environ.get('GATEWAY_PORT', '8585'))
+        gateway = GatewayAPI(
+            bot, port=gateway_port,
+            api_key=Config.GATEWAY_API_KEY,
+            hub=hub,
+        )
+        bot.gateway = gateway  # Enable _write_command → gateway.push_command
+        bot.hub = hub          # Enable Hub-based message routing
+        await gateway.start()
+        logger.info(f"Gateway API + WS Hub running on port {gateway_port}")
 
         # Run Discord bot (blocks until bot disconnects)
         await bot.start(Config.DISCORD_TOKEN)
@@ -100,8 +86,6 @@ async def main():
         logger.error(f"Fatal error: {e}", exc_info=True)
     finally:
         # Cleanup
-        if watcher:
-            watcher.stop()
         if not bot.is_closed():
             await bot.close()
         logger.info("Gravity Control shutdown complete")