feat(admin): host the ban/report settings page in the SPA schema

The users-interaction sidebar entry 禁封/举报 was a redirect stub; it is
now a schema-driven settings page replicating the reference theme
field-for-field:

- user_ban_s / user_report_s switches, ban_preset_reason and
  ban_appeal_keys as repeatable group rows ({t}), ban_appeal_desc and
  user_report_desc HTML textareas with the reference default copy, and
  user_report_img_s — keys, labels, help texts, defaults and ordering
  all mirrored in SchemaUsers.php and the SPA report.js schema
- UserRuntime::ban_settings()/report_settings() and
  BanAppeal::settings() read the new group-array values with fallback
  to the previous line/comma formats
- delete the self-built SPA queue pages (UsersBan, UsersReport,
  ReportDetailDrawer, UsersMessages) that the reference theme does not
  have; legacy /users/report bookmarks still redirect to the native page
- contract tests: lock the schema keys/labels, the schemaPage mount and
  the deleted-file state; drop reads of removed components

src/User/BanAppeal.php

@@ -34,10 +34,17 @@ class BanAppeal {
 	 */
 	public static function settings(): array {
 		$all = class_exists('\AKSRT\Settings\Settings') ? (array) \AKSRT\Settings\Settings::get_all() : [];
-		$keys_raw = (string) ($all['ban_appeal_keys'] ?? '');
-		$keys = array_values(array_filter(array_map('trim', preg_split('/[,，\n]/', $keys_raw) ?: [])));
+		// 申诉资料：group 数组 [{t:...}]（对齐参考主题）或旧版逗号分隔文本
+		$keys_raw = $all['ban_appeal_keys'] ?? null;
+		if (is_array($keys_raw)) {
+			$keys = array_values(array_filter(array_map(static function ($row): string {
+				return trim((string) ($row['t'] ?? ''));
+			}, $keys_raw)));
+		} else {
+			$keys = array_values(array_filter(array_map('trim', preg_split('/[,，\n]/', (string) $keys_raw) ?: [])));
+		}
 		return [
-			'enabled' => !isset($all['user_report_enabled']) || !empty($all['user_report_enabled']),
+			'enabled' => (bool) ($all['user_report_s'] ?? (isset($all['user_report_enabled']) ? $all['user_report_enabled'] : true)),
 			'desc'    => (string) ($all['ban_appeal_desc'] ?? ''),
 			'keys'    => $keys,
 		];