fix: mtls for agent, problems with auth

backend/internal/storage/sqlite.go

@@ -36,5 +36,8 @@ func Open(path string) (*sql.DB, error) {
 		return nil, fmt.Errorf("migrate: %w", err)
 	}
 
+	// Migration: add is_active column if it doesn't exist
+	_, _ = db.Exec(AddIsActiveColumn)
+
 	return db, nil
 }