feat: integrate invite API and improve notification handling

- Add invite code display and binding functionality via API
- Fix notification unread count sync on auth state change
- Improve notification mark read with server state validation
- Add auth state listener to trigger notification refresh
- Add YaoCoinConverter for coin-to-yao type conversion
- Remove YaoLegend from divination screens (UI cleanup)
- Abbreviate relation labels in yao detail view
- Add re-register notice to account delete screen
- Update 'coins' terminology to 'points' in localization
- Fix backend points consumption to only run in CHAT mode
- Add HttpxAuthNoiseFilter to suppress auth endpoint logging
- Fix notification static_schema import path
- Add test coverage for notification bloc error handling
- Update AGENTS.md page header rules and image handling
- Delete deprecated run-dev.sh script

apps/lib/features/settings/presentation/screens/invite_screen.dart

@@ -1,44 +1,125 @@
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 
+import '../../../../core/logging/logger.dart';
 import '../../../../l10n/app_localizations.dart';
 import '../../../../shared/theme/app_color_palette.dart';
 import '../../../../shared/theme/design_tokens.dart';
 import '../../../../shared/widgets/toast/toast.dart';
 import '../../../../shared/widgets/toast/toast_type.dart';
+import '../../data/repositories/invite_repository.dart';
 
 class InviteScreen extends StatefulWidget {
-  const InviteScreen({super.key});
+  const InviteScreen({super.key, required this.inviteRepository});
+
+  final InviteRepository inviteRepository;
 
   @override
   State<InviteScreen> createState() => _InviteScreenState();
 }
 
 class _InviteScreenState extends State<InviteScreen> {
+  final Logger _logger = getLogger('features.settings.invite_screen');
   final _bindCodeController = TextEditingController();
   final _formKey = GlobalKey<FormState>();
 
   bool _isBinding = false;
   bool _isGenerating = false;
+  bool _isLoading = true;
+  bool _hasError = false;
 
-  // Mock data - will be replaced with API calls
-  final String _myInviteCode = 'ABC123';
-  final int _invitedCount = 3;
+  String? _myInviteCode;
+  int _invitedCount = 0;
   final bool _hasInviter = false;
 
+  @override
+  void initState() {
+    super.initState();
+    _loadInviteCode();
+  }
+
+  Future<void> _loadInviteCode() async {
+    setState(() {
+      _isLoading = true;
+      _hasError = false;
+    });
+    try {
+      final result = await widget.inviteRepository.getMyInviteCode();
+      if (!mounted) return;
+      setState(() {
+        _myInviteCode = result.code;
+        _invitedCount = result.usedCount;
+        _isLoading = false;
+      });
+    } catch (error, stackTrace) {
+      _logger.error(
+        message: 'Failed to load invite code',
+        error: error,
+        stackTrace: stackTrace,
+      );
+      if (!mounted) return;
+      setState(() {
+        _hasError = true;
+        _isLoading = false;
+      });
+    }
+  }
+
   @override
   void dispose() {
     _bindCodeController.dispose();
     super.dispose();
   }
 
-  bool get _hasMyInviteCode => _myInviteCode.isNotEmpty;
+  bool get _hasMyInviteCode =>
+      _myInviteCode != null && _myInviteCode!.isNotEmpty;
 
   @override
   Widget build(BuildContext context) {
     final l10n = AppLocalizations.of(context)!;
     final colors = Theme.of(context).colorScheme;
 
+    if (_isLoading) {
+      return Scaffold(
+        backgroundColor: colors.surfaceContainerLow,
+        appBar: AppBar(
+          title: Text(l10n.settingsInviteTitle),
+          centerTitle: true,
+          backgroundColor: colors.surfaceContainerLow,
+          surfaceTintColor: colors.surfaceContainerLow,
+        ),
+        body: const Center(child: CircularProgressIndicator()),
+      );
+    }
+
+    if (_hasError) {
+      return Scaffold(
+        backgroundColor: colors.surfaceContainerLow,
+        appBar: AppBar(
+          title: Text(l10n.settingsInviteTitle),
+          centerTitle: true,
+          backgroundColor: colors.surfaceContainerLow,
+          surfaceTintColor: colors.surfaceContainerLow,
+        ),
+        body: Center(
+          child: Column(
+            mainAxisAlignment: MainAxisAlignment.center,
+            children: [
+              Text(
+                l10n.settingsInviteEmptyTitle,
+                style: Theme.of(context).textTheme.bodyLarge,
+              ),
+              const SizedBox(height: AppSpacing.md),
+              FilledButton(
+                onPressed: _loadInviteCode,
+                child: const Text('Retry'),
+              ),
+            ],
+          ),
+        ),
+      );
+    }
+
     return Scaffold(
       backgroundColor: colors.surfaceContainerLow,
       appBar: AppBar(
@@ -51,7 +132,10 @@ class _InviteScreenState extends State<InviteScreen> {
         padding: const EdgeInsets.all(AppSpacing.lg),
         children: [
           if (_hasMyInviteCode) ...[
-            _InviteCodeCard(inviteCode: _myInviteCode, onCopy: _copyInviteCode),
+            _InviteCodeCard(
+              inviteCode: _myInviteCode!,
+              onCopy: _copyInviteCode,
+            ),
             const SizedBox(height: AppSpacing.lg),
             _InviteStatsCard(count: _invitedCount),
             const SizedBox(height: AppSpacing.xl),
@@ -79,7 +163,7 @@ class _InviteScreenState extends State<InviteScreen> {
 
   void _copyInviteCode() {
     final l10n = AppLocalizations.of(context)!;
-    Clipboard.setData(ClipboardData(text: _myInviteCode));
+    Clipboard.setData(ClipboardData(text: _myInviteCode!));
     Toast.show(
       context,
       l10n.settingsInviteCopySuccess,