✨ Leave realm

assets/translations/en-US.json

@@ -648,5 +648,7 @@
   "realmIsPublic": "Public Realm",
   "realmIsPublicDescription": "The realm is public, anyone can join.",
   "realmIsCommunity": "Community Realm",
-  "realmIsCommunityDescription": "Community realm will be displayed on the discover page."
+  "realmIsCommunityDescription": "Community realm will be displayed on the discover page.",
+  "realmLeave": "Leave Realm",
+  "realmLeaveDescription": "Leave the current realm and delete the realm's identity."
 }

assets/translations/zh-CN.json

@@ -647,5 +647,7 @@
   "realmIsPublic": "公开领域",
   "realmIsPublicDescription": "该领域是公开的，任何人都可以加入。",
   "realmIsCommunity": "社区领域",
-  "realmIsCommunityDescription": "社区领域会显示在发现页面上。"
+  "realmIsCommunityDescription": "社区领域会显示在发现页面上。",
+  "realmLeave": "离开领域",
+  "realmLeaveDescription": "离开当前领域，并且删除领域中的身份。"
 }

lib/screens/realm/realm_detail.dart

@@ -357,6 +357,28 @@ class _RealmSettingsWidgetState extends State<_RealmSettingsWidget> {
     }
   }
 
+  Future<void> _leaveRealm() async {
+    final confirm = await context.showConfirmDialog(
+      'realmLeave'.tr(),
+      'realmLeaveDescription'.tr(),
+    );
+    if (!confirm) return;
+    if (!mounted) return;
+
+    final sn = context.read<SnNetworkProvider>();
+
+    try {
+      await sn.client.delete('/cgi/id/realms/${widget.realm!.alias}/members/me');
+      if (!mounted) return;
+      Navigator.pop(context, true);
+    } catch (err) {
+      if (!mounted) return;
+      context.showErrorDialog(err);
+    } finally {
+      setState(() => _isBusy = false);
+    }
+  }
+
   @override
   Widget build(BuildContext context) {
     final ua = context.read<UserProvider>();
@@ -366,6 +388,15 @@ class _RealmSettingsWidgetState extends State<_RealmSettingsWidget> {
     return Column(
       children: [
         const Gap(8),
+        ListTile(
+          leading: const Icon(Symbols.logout),
+          trailing: const Icon(Symbols.chevron_right),
+          title: Text('realmLeave').tr(),
+          subtitle: Text('realmLeaveDescription').tr(),
+          contentPadding: const EdgeInsets.symmetric(horizontal: 24),
+          onTap: _isBusy ? null : () => _leaveRealm(),
+        ),
+        if (isOwned)
           ListTile(
             leading: const Icon(Symbols.edit),
             trailing: const Icon(Symbols.chevron_right),