feat: import Chinese-localized Buzz source snapshot

Signed-off-by: cls_宁波本机 <908705107@qq.com>

mobile/lib/features/settings/settings_page/connection_section.dart

@@ -0,0 +1,113 @@
+part of '../settings_page.dart';
+
+class _ConnectionSection extends ConsumerWidget {
+  const _ConnectionSection({required this.identityRecoveryPageBuilder});
+
+  final WidgetBuilder identityRecoveryPageBuilder;
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final config = ref.watch(relayConfigProvider);
+    final nsec = config.nsec;
+
+    return AppListCard(
+      label: context.l10n.connection,
+      children: [
+        AppListRow(
+          icon: LucideIcons.server,
+          title: context.l10n.connectedTo,
+          subtitle: config.baseUrl,
+        ),
+        if (nsec != null && nsec.isNotEmpty) ...[
+          _IdentityRow(nsec: nsec),
+          AppListRow(
+            icon: LucideIcons.scanQrCode,
+            title: context.l10n.sendIdentityToDesktop,
+            subtitle: context.l10n.scanRecoveryCode,
+            trailing: const _RowChevron(),
+            onTap: () => Navigator.of(context).push(
+              MaterialPageRoute<void>(builder: identityRecoveryPageBuilder),
+            ),
+          ),
+        ],
+      ],
+    );
+  }
+}
+
+/// Destructive, so it gets a container of its own rather than sitting at the
+/// bottom of the connection group.
+class _RemoveCommunitySection extends ConsumerWidget {
+  const _RemoveCommunitySection();
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    return AppListCard(
+      children: [
+        AppListRow(
+          icon: LucideIcons.logOut,
+          title: context.l10n.removeCommunity,
+          titleColor: context.colors.error,
+          onTap: () => _confirmRemoveCommunity(context, ref),
+        ),
+      ],
+    );
+  }
+}
+
+class _IdentityRow extends StatelessWidget {
+  const _IdentityRow({required this.nsec});
+
+  final String nsec;
+
+  @override
+  Widget build(BuildContext context) {
+    final privHex = nostr.Nip19.decode(payload: nsec).data;
+    final pubkey = privHex.isNotEmpty ? nostr.Keys(privHex).public : 'unknown';
+
+    return AppListRow(
+      icon: LucideIcons.key,
+      title: context.l10n.identityPubkey,
+      subtitle: pubkey,
+      subtitleStyle: context.textTheme.bodySmall?.copyWith(
+        color: context.colors.onSurfaceVariant,
+        fontFamily: 'GeistMono',
+        fontSize: 11,
+      ),
+      subtitleMaxLines: 2,
+      trailing: IconButton(
+        icon: const Icon(LucideIcons.copy, size: 16),
+        onPressed: () async {
+          await copyToClipboard(context, pubkey, message: context.l10n.pubkeyCopied);
+        },
+      ),
+    );
+  }
+}
+
+void _confirmRemoveCommunity(BuildContext context, WidgetRef ref) {
+  showBuzzDialog<void>(
+    context: context,
+    builder: (ctx) => AlertDialog(
+      title: Text(context.l10n.removeCommunityTitle),
+      content: Text(context.l10n.removeCommunityContent),
+      actions: [
+        TextButton(
+          onPressed: () => Navigator.of(ctx).pop(),
+          child: Text(context.l10n.cancel),
+        ),
+        FilledButton(
+          onPressed: () {
+            Navigator.of(ctx).pop(); // close dialog
+            // Pop all pushed routes back to root so MaterialApp.home rebuilds
+            // to PairingPage when auth state changes.
+            Navigator.of(context).popUntil((route) => route.isFirst);
+            ref.read(authProvider.notifier).signOut();
+          },
+          style: FilledButton.styleFrom(backgroundColor: ctx.colors.error),
+          child: Text(context.l10n.remove),
+        ),
+      ],
+    ),
+  );
+}