feat(app): 完善播放协议搜索与空状态

lib/pages/settings/legal_links_card.dart

@@ -0,0 +1,104 @@
+// Author: fruit.com.cn
+
+import 'dart:async';
+
+import 'package:flutter/material.dart';
+
+import '../../core/legal/legal_opener.dart';
+import '../../core/legal/legal_page.dart';
+import '../../core/theme/app_colors.dart';
+import '../../core/theme/app_dimens.dart';
+import '../../l10n/app_localizations.dart';
+
+/// 设置页里的服务条款和隐私协议。点一行就打开当前语言的公开页。
+class LegalLinksCard extends StatelessWidget {
+  const LegalLinksCard({super.key, this.open});
+
+  final Future<void> Function(String url)? open;
+
+  @override
+  Widget build(BuildContext context) {
+    final l10n = AppLocalizations.of(context)!;
+    final rows = <_LegalRow>[
+      _LegalRow(
+        key: const Key('settings-terms'),
+        title: l10n.legalTerms,
+        path: legalTermsPath,
+      ),
+      _LegalRow(
+        key: const Key('settings-privacy'),
+        title: l10n.legalPrivacy,
+        path: legalPrivacyPath,
+      ),
+    ];
+    return Material(
+      color: AppColors.card,
+      borderRadius: BorderRadius.circular(AppDimens.cardRadius),
+      clipBehavior: Clip.antiAlias,
+      child: Column(
+        children: [
+          for (var index = 0; index < rows.length; index++) ...[
+            if (index > 0)
+              const Divider(
+                height: AppDimens.mineGridDividerWidth,
+                thickness: AppDimens.mineGridDividerWidth,
+                color: AppColors.outlineVariantDark,
+              ),
+            _tile(context, rows[index]),
+          ],
+        ],
+      ),
+    );
+  }
+
+  Widget _tile(BuildContext context, _LegalRow row) {
+    return InkWell(
+      key: row.key,
+      onTap: () => _open(context, row.path),
+      child: SizedBox(
+        height: AppDimens.mineMoreRowHeight,
+        child: Padding(
+          padding: const EdgeInsets.symmetric(horizontal: AppDimens.spaceLg),
+          child: Row(
+            children: [
+              Expanded(
+                child: Text(
+                  row.title,
+                  maxLines: 1,
+                  overflow: TextOverflow.ellipsis,
+                  style: const TextStyle(
+                    color: AppColors.textPrimary,
+                    fontSize: AppDimens.listTitle,
+                  ),
+                ),
+              ),
+              const Icon(
+                Icons.chevron_right_rounded,
+                color: AppColors.textSecondary,
+                size: AppDimens.accountIcon,
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+
+  void _open(BuildContext context, String path) {
+    final url = legalPageUrl(path, Localizations.localeOf(context));
+    final custom = open;
+    if (custom != null) {
+      unawaited(custom(url));
+      return;
+    }
+    unawaited(openLegalUrlOrNotify(context, url));
+  }
+}
+
+class _LegalRow {
+  const _LegalRow({required this.key, required this.title, required this.path});
+
+  final Key key;
+  final String title;
+  final String path;
+}

lib/pages/settings/settings_page.dart

@@ -6,16 +6,15 @@ import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 
 import '../../core/data/services/auth_controller.dart';
-import '../../core/theme/app_colors.dart';
 import '../../core/theme/app_dimens.dart';
 import '../../core/theme/app_theme.dart';
 import '../../core/widgets/auth_gate.dart';
 import '../../core/widgets/plain_page_scaffold.dart';
 import '../../l10n/app_localizations.dart';
 import '../account/account_entry_card.dart';
-import '../notices/notices_page.dart';
+import 'legal_links_card.dart';
 
-/// 设置页：收纳账号、通知与登录态，不提供手动语言切换。
+/// 设置页：账号入口按列表展示，不提供通知和手动语言切换。
 class SettingsPage extends StatelessWidget {
   const SettingsPage({super.key});
 
@@ -34,10 +33,10 @@ class SettingsPage extends StatelessWidget {
           children: [
             if (auth.isSignedIn) ...[
               const AccountEntryCard(),
-              const SizedBox(height: 12),
+              const SizedBox(height: AppDimens.spaceXl),
             ],
-            _noticesTile(context, l10n),
-            const SizedBox(height: 24),
+            const LegalLinksCard(),
+            const SizedBox(height: AppDimens.spaceXl),
             _authAction(context, l10n, auth),
           ],
         ),
@@ -45,29 +44,6 @@ class SettingsPage extends StatelessWidget {
     );
   }
 
-  Widget _noticesTile(BuildContext context, AppLocalizations l10n) {
-    return Material(
-      color: AppColors.card,
-      shape: RoundedRectangleBorder(
-        borderRadius: BorderRadius.circular(AppDimens.cardRadius),
-        side: const BorderSide(color: AppColors.border),
-      ),
-      clipBehavior: Clip.antiAlias,
-      child: ListTile(
-        key: const Key('settings-notices'),
-        leading: const Icon(
-          Icons.notifications_none_rounded,
-          color: AppColors.blueSoft,
-        ),
-        title: Text(l10n.notices),
-        trailing: const Icon(Icons.chevron_right_rounded),
-        onTap: () => Navigator.of(
-          context,
-        ).push<void>(MaterialPageRoute(builder: (_) => const NoticesPage())),
-      ),
-    );
-  }
-
   Widget _authAction(
     BuildContext context,
     AppLocalizations l10n,