feat: add guided exploration and share user-started MCP backend

apps/admin_console/database/repositories/session_repository.py

@@ -23,10 +23,7 @@ from artemis.runtime import trace_store
 
 logger = logging.getLogger(__name__)
 
-try:
-    from admin_console.database.connection import db_session
-except ImportError:
-    from apps.admin_console.database.connection import db_session
+from apps.admin_console.database.connection import db_session
 
 
 def _canonicalize_status(row: dict[str, Any]) -> dict[str, Any]: