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/l10n/app_localizations_en.dart

@@ -367,6 +367,10 @@ class AppLocalizationsEn extends AppLocalizations {
   String get settingsDeleteAccountWarningBody =>
       'After deletion, related data including profile, history, and points will be permanently removed and cannot be restored.';
 
+  @override
+  String get settingsDeleteAccountReRegisterNotice =>
+      'Important: if you delete and re-register with the same email, consumed points will not be reset or refunded.';
+
   @override
   String get settingsDeleteAccountScopeProfile =>
       'Profile and account information will be deleted';
@@ -770,7 +774,7 @@ class AppLocalizationsEn extends AppLocalizations {
   String get toastPleaseInputQuestion => 'Please enter your question';
 
   @override
-  String get toastCoinInsufficient => 'Insufficient coins';
+  String get toastCoinInsufficient => 'Insufficient points';
 
   @override
   String get divinationCostDialogTitle => 'Confirm divination';