fix(ui): нормализовать detail из ответов API перед рендером — краш на 422

Что: все обработчики ошибок, которые клали сырой response.data.detail в
состояние и затем в JSX, переведены на существующий хелпер
getApiErrorMessage (src/utils/api-error.ts):

- Login.tsx — Telegram-auth, вход/регистрация по email, восстановление пароля
- Profile.tsx — смена email (запрос и подтверждение кода), повторная
  отправка письма верификации
- ConnectedAccounts.tsx — привязка email к аккаунту
- admin/AnalyticsTab.tsx, admin/MenuEditorTab.tsx — сохранение настроек

Почему: на невалидный по схеме запрос FastAPI/Pydantic отвечает 422, где
detail — не строка, а массив объектов {type, loc, msg, input, ctx}.
Компоненты рендерили его как есть, React падал с «Objects are not valid
as a React child», и вся страница (включая логин) уходила в ErrorBoundary
«Something went wrong» — пользователь не видел причину отказа вообще.

Зачем: getApiErrorMessage сводит Pydantic-массив к строке
«field: message; ...», поэтому вместо краша форма показывает настоящий
текст ошибки валидации. Ветвления по detail.includes(...) сохранены и
работают по нормализованной строке — поведение прежнее для строковых
detail, но безопасное для любой формы ответа.

src/components/admin/AnalyticsTab.tsx

@@ -2,6 +2,7 @@ import { useState } from 'react';
 import { useTranslation } from 'react-i18next';
 import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query';
 import { brandingApi } from '../../api/branding';
+import { getApiErrorMessage } from '../../utils/api-error';
 import { CheckIcon, CloseIcon, PencilIcon } from './icons';
 
 export function AnalyticsTab() {
@@ -31,8 +32,7 @@ export function AnalyticsTab() {
       setError(null);
     },
     onError: (err: unknown) => {
-      const detail = (err as { response?: { data?: { detail?: string } } })?.response?.data?.detail;
-      setError(detail || t('common.error'));
+      setError(getApiErrorMessage(err, t('common.error')));
     },
   });
 

src/components/admin/MenuEditorTab.tsx

@@ -39,6 +39,7 @@ import {
 import { Toggle } from './Toggle';
 import { useNotify } from '../../platform/hooks/useNotify';
 import { useNativeDialog } from '../../platform/hooks/useNativeDialog';
+import { getApiErrorMessage } from '../../utils/api-error';
 
 const ChevronIcon = ({ expanded }: { expanded: boolean }) => (
   <PiCaretDown className={`h-3.5 w-3.5 transition-transform ${expanded ? 'rotate-180' : ''}`} />
@@ -511,9 +512,7 @@ export function MenuEditorTab() {
       queryClient.setQueryData(['menu-layout'], data);
     },
     onError: (err: unknown) => {
-      const error = err as { response?: { data?: { detail?: string } } };
-      const detail = error.response?.data?.detail;
-      notify.error(detail || t('common.error'));
+      notify.error(getApiErrorMessage(err, t('common.error')));
     },
   });
 

src/pages/ConnectedAccounts.tsx

@@ -11,6 +11,7 @@ import { Button } from '@/components/primitives/Button';
 import { staggerContainer, staggerItem } from '@/components/motion/transitions';
 import ProviderIcon from '../components/ProviderIcon';
 import { LINK_OAUTH_STATE_KEY, LINK_OAUTH_PROVIDER_KEY, getErrorDetail } from '../utils/oauth';
+import { getApiErrorMessage } from '../utils/api-error';
 import { getTelegramInitData } from '../hooks/useTelegramSDK';
 import { usePlatform, useIsTelegram } from '@/platform/hooks/usePlatform';
 import { useAuthStore } from '../store/auth';
@@ -422,16 +423,16 @@ export default function ConnectedAccounts() {
       // Note: auth user lives in the zustand store, not in React Query —
       // the explicit setUser above IS the refresh. No ['user'] query exists.
     },
-    onError: (err: { response?: { data?: { detail?: string } } }) => {
-      const detail = err.response?.data?.detail;
+    onError: (err: unknown) => {
+      const detail = getApiErrorMessage(err, '');
       // The email belongs to another account and merging it requires proving
       // ownership: the backend asks for THAT account's password (account-takeover
       // fix). Guide the user to enter it rather than showing a dead-end error.
-      if (detail?.includes('merge')) {
+      if (detail.includes('merge')) {
         setEmailError(t('profile.emailMergePasswordRequired'));
-      } else if (detail?.includes('already registered')) {
+      } else if (detail.includes('already registered')) {
         setEmailError(t('profile.emailAlreadyRegistered'));
-      } else if (detail?.includes('already have a verified email')) {
+      } else if (detail.includes('already have a verified email')) {
         setEmailError(t('profile.alreadyHaveEmail'));
       } else {
         setEmailError(detail || t('common.error'));

src/pages/Login.tsx

@@ -16,6 +16,7 @@ import {
   type EmailAuthEnabled,
 } from '../api/branding';
 import { getAndClearReturnUrl, tokenStorage } from '../utils/token';
+import { getApiErrorMessage } from '../utils/api-error';
 import { isInTelegramWebApp, getTelegramInitData, useTelegramSDK } from '../hooks/useTelegramSDK';
 import { closeMiniApp } from '@telegram-apps/sdk-react';
 import LanguageSwitcher from '../components/LanguageSwitcher';
@@ -190,9 +191,9 @@ export default function Login() {
           navigate(getReturnUrl(), { replace: true });
           return;
         } catch (err) {
-          const error = err as { response?: { status?: number; data?: { detail?: string } } };
+          const error = err as { response?: { status?: number } };
           const status = error.response?.status;
-          const detail = error.response?.data?.detail;
+          const detail = getApiErrorMessage(err, '');
           if (import.meta.env.DEV)
             console.warn(`Telegram auth attempt ${attempt + 1} failed:`, status, detail);
 
@@ -268,14 +269,14 @@ export default function Login() {
         setRegisteredEmail(result.email);
       }
     } catch (err: unknown) {
-      const error = err as { response?: { status?: number; data?: { detail?: string } } };
+      const error = err as { response?: { status?: number } };
       const status = error.response?.status;
-      const detail = error.response?.data?.detail;
+      const detail = getApiErrorMessage(err, '');
 
-      if (status === 400 && detail?.includes('already registered')) {
+      if (status === 400 && detail.includes('already registered')) {
         setError(t('auth.emailAlreadyRegistered', 'This email is already registered'));
       } else if (status === 401 || status === 403) {
-        if (detail?.includes('verify your email')) {
+        if (detail.includes('verify your email')) {
           setError(t('auth.emailNotVerified', 'Please verify your email first'));
         } else {
           setError(t('auth.invalidCredentials', 'Invalid email or password'));
@@ -304,9 +305,7 @@ export default function Login() {
       await authApi.forgotPassword(forgotPasswordEmail.trim());
       setForgotPasswordSent(true);
     } catch (err: unknown) {
-      const error = err as { response?: { status?: number; data?: { detail?: string } } };
-      const detail = error.response?.data?.detail;
-      setForgotPasswordError(detail || t('common.error'));
+      setForgotPasswordError(getApiErrorMessage(err, t('common.error')));
     } finally {
       setForgotPasswordLoading(false);
     }

src/pages/Profile.tsx

@@ -9,10 +9,11 @@ import { useAuthStore } from '../store/auth';
 import { displayName } from '../utils/displayName';
 import { authApi } from '../api/auth';
 import { isValidEmail } from '../utils/validation';
+import { getApiErrorMessage } from '../utils/api-error';
 import {
   notificationsApi,
-  NotificationSettings,
-  NotificationSettingsUpdate,
+  type NotificationSettings,
+  type NotificationSettingsUpdate,
 } from '../api/notifications';
 import { referralApi } from '../api/referral';
 import { brandingApi, type EmailAuthEnabled } from '../api/branding';
@@ -112,8 +113,8 @@ export default function Profile() {
       setError(null);
       setVerificationResendCooldown(UI.RESEND_COOLDOWN_SEC);
     },
-    onError: (err: { response?: { data?: { detail?: string } } }) => {
-      setError(err.response?.data?.detail || t('common.error'));
+    onError: (err: unknown) => {
+      setError(getApiErrorMessage(err, t('common.error')));
       setSuccess(null);
     },
   });
@@ -133,13 +134,13 @@ export default function Profile() {
         setResendCooldown(UI.RESEND_COOLDOWN_SEC);
       }
     },
-    onError: (err: { response?: { data?: { detail?: string } } }) => {
-      const detail = err.response?.data?.detail;
-      if (detail?.includes('already registered') || detail?.includes('already in use')) {
+    onError: (err: unknown) => {
+      const detail = getApiErrorMessage(err, '');
+      if (detail.includes('already registered') || detail.includes('already in use')) {
         setChangeError(t('profile.changeEmail.emailAlreadyUsed'));
-      } else if (detail?.includes('same as current')) {
+      } else if (detail.includes('same as current')) {
         setChangeError(t('profile.changeEmail.sameEmail'));
-      } else if (detail?.includes('rate limit') || detail?.includes('too many')) {
+      } else if (detail.includes('rate limit') || detail.includes('too many')) {
         setChangeError(t('profile.changeEmail.tooManyRequests'));
       } else {
         setChangeError(detail || t('common.error'));
@@ -157,11 +158,11 @@ export default function Profile() {
       // Note: auth user lives in the zustand store, not in React Query —
       // the explicit setUser above IS the refresh. No ['user'] query exists.
     },
-    onError: (err: { response?: { data?: { detail?: string } } }) => {
-      const detail = err.response?.data?.detail;
-      if (detail?.includes('invalid') || detail?.includes('wrong')) {
+    onError: (err: unknown) => {
+      const detail = getApiErrorMessage(err, '');
+      if (detail.includes('invalid') || detail.includes('wrong')) {
         setChangeError(t('profile.changeEmail.invalidCode'));
-      } else if (detail?.includes('expired')) {
+      } else if (detail.includes('expired')) {
         setChangeError(t('profile.changeEmail.codeExpired'));
       } else {
         setChangeError(detail || t('common.error'));