fix(page-data): grant agent role set permission

postgres-user-data-space-service.mjs

@@ -1,6 +1,7 @@
 import pg from 'pg';
 import {
   buildControlSchemaSql,
+  buildEnsureCurrentUserCanSetRoleSql,
   deriveUserSpaceNames,
   provisionUserSpace,
   quotePgIdentifier,
@@ -107,6 +108,10 @@ export function createPostgresUserDataSpaceService(options = {}) {
           await client.query('ROLLBACK');
           throw error;
         }
+      } else {
+        // PostgreSQL 17 grants CREATEROLE owners ADMIN but not SET by default.
+        // Reconcile existing spaces before the runtime executes SET LOCAL ROLE.
+        await client.query(buildEnsureCurrentUserCanSetRoleSql(names.agentRole));
       }
       provisionedUsers.add(names.userId);
     } finally {