修复了一些问题

tests/widget-system/message-center-contract.test.cjs

@@ -45,6 +45,30 @@ test('message center URL helper builds every view from the configured alias', ()
   });
 });
 
+test('message pagination setting switches between cumulative loading and numeric replacement', () => {
+  const result = spawnSync(process.env.PHP_BINARY || 'php', [path.join(__dirname, 'message-center-pagination-harness.php')], {
+    cwd: root,
+    encoding: 'utf8',
+  });
+  assert.equal(result.status, 0, result.stderr || result.stdout);
+  assert.deepEqual(JSON.parse(result.stdout), {
+    ajax_items: 40,
+    ajax_has_more: true,
+    ajax_has_numbers: false,
+    default_items: 20,
+    default_has_more: false,
+    default_numbers: true,
+    default_current_2: true,
+  });
+
+  const script = read('assets/js/messages.js');
+  const styles = read('assets/css/frontend/messages.css');
+  assert.match(script, /data-message-next-page|dataset\.messageNextPage/);
+  assert.match(script, /appendMessagePage\(result\.data\.content\)/);
+  assert.match(styles, /\.messages-pagination__more/);
+  assert.match(styles, /\.messages-pagination__button\.is-current/);
+});
+
 test('tabs, pagination, actions, and detail all replace DOM fragments', () => {
   const center = read('inc/modules/message-center.php');
   const script = read('assets/js/messages.js');