fix(report): align the report modal with the reference theme 1:1

- read preset reasons from the real source (ban_preset_reason via
  UserRuntime::ban_settings); the previous injection read a
  nonexistent report.categories key, so backend reasons never showed
- rebuild the modal on the reference markup contract: edit-header
  warning header, reason chips toggling the reference .active class
  (focus color), other-reason textarea, violation link, description,
  but-average modal-buts footer
- add image evidence upload gated by user_report_img_s: new
  /report/upload-image route reusing the comment upload handler with
  its own permission, preview/remove UI, up to 3 images appended to
  the report content
- render the backend report notice (user_report_desc, sanitized HTML)
  inside the modal
- widen the dialog to the reference 600px desktop geometry and share
  the form-upload preview styles with the order review modal
- extend the report contract test accordingly

src/Core/ScriptsPart1c.php

@@ -487,13 +487,24 @@ trait ScriptsPart1c {
             'restUrl'               => esc_url_raw(rest_url('aksrt/v1')),
             // Alias used by modal-auth / follow / report (same value as restUrl).
             'apiUrl'                => esc_url_raw(rest_url('aksrt/v1')),
-            // 举报弹窗预置原因（report.js 徽章选择数据源）。
+            // 举报弹窗数据（report.js）：预置原因读取后台“禁封/举报”的 ban_preset_reason
+            // （UserRuntime::ban_settings，参考主题 _pz('ban_preset_reason') 同源），
+            // 图片举证开关与举报说明读取 user_report_img_s / user_report_desc。
             'reportCategories'      => (function () {
-                if (!class_exists('\AKSRT\Settings\Settings')) {
+                if (!class_exists('\AKSRT\Settings\UserRuntime')) {
                     return [];
                 }
-                $report = \AKSRT\Settings\Settings::get_user_identity_settings()['report'] ?? [];
-                return is_array($report['categories'] ?? null) ? array_values($report['categories']) : [];
+                return \AKSRT\Settings\UserRuntime::ban_settings()['reasons'] ?? [];
+            })(),
+            'report'                => (function () {
+                if (!class_exists('\AKSRT\Settings\UserRuntime')) {
+                    return ['imgEnabled' => false, 'desc' => ''];
+                }
+                $report = \AKSRT\Settings\UserRuntime::report_settings();
+                return [
+                    'imgEnabled' => !empty($report['img_enabled']),
+                    'desc'       => (string) ($report['desc'] ?? ''),
+                ];
             })(),
             'stickyEnabled'         => class_exists('\AKSRT\Settings\Settings') ? !empty(\AKSRT\Settings\Settings::get_post_list_style_settings()['sticky_s']) : true,
             'stickyPages'           => class_exists('\AKSRT\Settings\Settings') ? \AKSRT\Settings\Settings::get_post_list_style_settings()['sticky_s'] : ['home', 'cat'],