Migrate primary to labeled path, remove all flat-path fallback logic

agentclaw/app/agent_claw_main/tools/google_workspace.py

@@ -98,14 +98,8 @@ def _load_all_creds(actor_id: str) -> dict[str, Credentials]:
     except Exception as e:
         print(f'[google] list_secrets failed: {e}')
 
-    # Always include flat secret as 'primary' if not already in result
-    if 'primary' not in result:
-        flat = f'agent-claw/google-credentials/{safe}'
-        try:
-            result['primary'] = _load_creds_from_secret(flat)
-            print(f'[google] loaded creds from flat path actor={actor_id}')
-        except Exception:
-            pass
+    # Note: all accounts now stored at agent-claw/google-credentials/{actor_id}/{label}
+    # flat path (no label) is legacy and no longer needed
 
     _creds_cache[actor_id] = (now, result)
     return result