fix(docker): resolve container networking and DB compatibility issues (#560)

- Auto-detect Docker container environment and use service name
  'hermes-agent' as default host instead of 127.0.0.1
- Replace hardcoded column names with SELECT * in session DB queries
  to compat with older Hermes agent state.db schemas
- Remove unused UPSTREAM env var from docker-compose.yml
- Include err.message in syncFromHermes failure logs
- Add group chat rule to prevent self-mentioning

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>

packages/server/src/services/hermes/chat-run-socket.ts

@@ -1594,7 +1594,7 @@ export class ChatRunSocket {
       this.enqueueEphemeralDelete(hermesSessionId, profile)
       return true
     } catch (err: any) {
-      logger.warn(err, '[chat-run-socket] syncFromHermes failed for session %s (hermesId: %s, profile: %s)', localSessionId, hermesSessionId, profile || 'default')
+      logger.warn(err, '[chat-run-socket] syncFromHermes failed for session %s (hermesId: %s, profile: %s): %s', localSessionId, hermesSessionId, profile || 'default', err?.message)
       return false
     }
   }