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>

src/Core/ScriptsPart1b.php

@@ -424,12 +424,23 @@ trait ScriptsPart1b {
 								(string) filemtime($tickets_css)
 							);
 						}
+						// 共享工具层（请求 / 弹窗 / 上传 / 行内校验）先于面板脚本加载。
+						$ticket_core_js = get_template_directory() . '/assets/js/ticket-center-core.js';
+						if (file_exists($ticket_core_js)) {
+							wp_register_script(
+								'aksrt-ticket-center-core',
+								$base_uri . '/assets/js/ticket-center-core.js',
+								['loader_js'],
+								(string) filemtime($ticket_core_js),
+								true
+							);
+						}
 						$ticket_center_js = get_template_directory() . '/assets/js/ticket-center.js';
 						if (file_exists($ticket_center_js)) {
 							wp_enqueue_script(
 								'aksrt-ticket-center',
 								$base_uri . '/assets/js/ticket-center.js',
-								['loader_js'],
+								['loader_js', 'aksrt-ticket-center-core'],
 								(string) filemtime($ticket_center_js),
 								true
 							);