feat(ticket): redesign user-center ticket center UI/UX

- Status stat cards double as quick filters; debounced search with stale-response guard
- Card list with status stripe, windowed pagination, skeleton/empty/error states
- Detail dialog as chat timeline with in-place refresh, quote preview, Ctrl+Enter send
- Create form with department chips, inline validation, multi-image upload, success notice
- Split shared helpers into ticket-center-core.js and enqueue it before the panel script
- Drop dead data-aksrt-ticket-config and legacy colorful modal header

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

tests/widget-system/ticket-captcha-contract.test.cjs

@@ -67,6 +67,7 @@ test('the ticket panel mounts both captcha scenes', () => {
   const js = read('assets/js/ticket-center.js');
   assert.match(js, /runCaptcha\('ticket_create'\)/);
   assert.match(js, /runCaptcha\('ticket_reply'\)/);
-  // 取消验证时中止提交，不静默放行。
-  assert.match(js, /return payload === null \? Promise\.reject\(\{ cancelled: true \}\)/);
+  // 取消验证时中止提交，不静默放行（runCaptcha 实现位于共享工具层）。
+  const core = read('assets/js/ticket-center-core.js');
+  assert.match(core, /return payload === null \? Promise\.reject\(\{ cancelled: true \}\)/);
 });

tests/widget-system/ticket-native-admin-contract.test.cjs

@@ -119,7 +119,8 @@ test('SPA deep-links the native ticket page instead of hosting it', () => {
 
 test('frontend hooks match the renderer and the JS module', () => {
   const renderer = read('inc/helpers/user-center-renderers/profile-tickets.php');
-  const js = read('assets/js/ticket-center.js');
+  // 面板脚本 + 共享工具层（请求 / 弹窗 / 上传）共同构成前端模块。
+  const js = read('assets/js/ticket-center.js') + '\n' + read('assets/js/ticket-center-core.js');
 
   for (const hook of [
     'data-aksrt-ticket-center',
@@ -130,7 +131,6 @@ test('frontend hooks match the renderer and the JS module', () => {
     'data-aksrt-ticket-pagination',
     'data-aksrt-tickets-search',
     'data-aksrt-ticket-filter=',
-    'data-aksrt-ticket-config',
   ]) {
     assert.ok(renderer.includes(hook), `renderer missing ${hook}`);
   }