feat(bridge): 동적 채널 관리 - gravity-{프로젝트명} 채널 자동 생성/아카이브

config.py

@@ -13,7 +13,7 @@ class Config:
 
     # Discord
     DISCORD_TOKEN: str = os.getenv("DISCORD_TOKEN", "")
-    DISCORD_CHANNEL_ID: int = int(os.getenv("DISCORD_CHANNEL_ID", "0"))
+    DISCORD_GUILD_ID: int = int(os.getenv("DISCORD_GUILD_ID") or "0")
 
     # Antigravity Brain path
     BRAIN_PATH: Path = Path(os.getenv(
@@ -21,6 +21,9 @@ class Config:
         os.path.expanduser("~/.gemini/antigravity/brain")
     ))
 
+    # Session activity detection
+    ACTIVE_TIMEOUT_SECONDS: int = int(os.getenv("ACTIVE_TIMEOUT_SECONDS", "300"))
+
     # Watcher settings
     DEBOUNCE_SECONDS: float = float(os.getenv("DEBOUNCE_SECONDS", "2"))
 
@@ -35,14 +38,17 @@ class Config:
     DISCORD_MSG_LIMIT: int = 2000
     DISCORD_EMBED_DESC_LIMIT: int = 4096
 
+    # Channel naming
+    CHANNEL_PREFIX: str = "gravity"
+
     @classmethod
     def validate(cls) -> list[str]:
         """Return list of configuration errors."""
         errors = []
         if not cls.DISCORD_TOKEN:
             errors.append("DISCORD_TOKEN is not set")
-        if not cls.DISCORD_CHANNEL_ID:
-            errors.append("DISCORD_CHANNEL_ID is not set")
+        if not cls.DISCORD_GUILD_ID:
+            errors.append("DISCORD_GUILD_ID is not set")
         if not cls.BRAIN_PATH.exists():
             errors.append(f"BRAIN_PATH does not exist: {cls.BRAIN_PATH}")
         return errors