refactor: route media and chat module settings through runtime

app/modules/slack/slack.py

@@ -10,7 +10,9 @@ from slack_bolt import App
 from slack_bolt.adapter.socket_mode import SocketModeHandler
 from slack_sdk import WebClient
 
-from app.runtime.config import settings
+from app.runtime.settings import RuntimeSettingsCompat
+
+settings = RuntimeSettingsCompat()
 from app.domain.context import MediaInfo, Context
 from app.domain.metainfo import MetaInfo
 from app.runtime.log import logger