fix: normalize all API responses, add error handling and reset confirmation

- Extract normalizeConfig() for consistent response normalization
- Add onError handlers to mutations with useNotify
- Add window.confirm before destructive reset action
- Add resetConfirm translation key to all locales

src/api/buttonStyles.ts

@@ -33,6 +33,7 @@ export const BUTTON_SECTIONS = [
 
 export type ButtonSection = (typeof BUTTON_SECTIONS)[number];
 
+// Bot-side locales (includes 'ua' for Ukrainian, mapped from ISO 'uk' internally).
 export const BOT_LOCALES = ['ru', 'en', 'ua', 'zh', 'fa'] as const;
 
 export type BotLocale = (typeof BOT_LOCALES)[number];
@@ -54,19 +55,23 @@ export const DEFAULT_BUTTON_STYLES: ButtonStylesConfig = {
   admin: { ...DEFAULT_SECTION, style: 'danger' },
 };
 
+function normalizeConfig(data: ButtonStylesConfig): ButtonStylesConfig {
+  const result = {} as ButtonStylesConfig;
+  for (const section of BUTTON_SECTIONS) {
+    result[section] = {
+      ...DEFAULT_SECTION,
+      ...data[section],
+      labels: { ...(data[section]?.labels || {}) },
+    };
+  }
+  return result;
+}
+
 export const buttonStylesApi = {
   getStyles: async (): Promise<ButtonStylesConfig> => {
     try {
       const response = await apiClient.get<ButtonStylesConfig>('/cabinet/admin/button-styles');
-      const data = response.data;
-      for (const section of BUTTON_SECTIONS) {
-        data[section] = {
-          ...DEFAULT_SECTION,
-          ...data[section],
-          labels: { ...(data[section]?.labels || {}) },
-        };
-      }
-      return data;
+      return normalizeConfig(response.data);
     } catch {
       return DEFAULT_BUTTON_STYLES;
     }
@@ -77,11 +82,11 @@ export const buttonStylesApi = {
       '/cabinet/admin/button-styles',
       update,
     );
-    return response.data;
+    return normalizeConfig(response.data);
   },
 
   resetStyles: async (): Promise<ButtonStylesConfig> => {
     const response = await apiClient.post<ButtonStylesConfig>('/cabinet/admin/button-styles/reset');
-    return response.data;
+    return normalizeConfig(response.data);
   },
 };

src/components/admin/ButtonsTab.tsx

@@ -10,6 +10,7 @@ import {
   BOT_LOCALES,
 } from '../../api/buttonStyles';
 import { Toggle } from './Toggle';
+import { useNotify } from '../../platform/hooks/useNotify';
 
 type StyleValue = 'primary' | 'success' | 'danger' | 'default';
 
@@ -40,6 +41,7 @@ function stylesEqual(a: ButtonStylesConfig, b: ButtonStylesConfig): boolean {
 export function ButtonsTab() {
   const { t } = useTranslation();
   const queryClient = useQueryClient();
+  const notify = useNotify();
 
   const { data: serverStyles } = useQuery({
     queryKey: ['button-styles'],
@@ -73,6 +75,9 @@ export function ButtonsTab() {
       setDraftStyles(data);
       queryClient.setQueryData(['button-styles'], data);
     },
+    onError: () => {
+      notify.error(t('common.error'));
+    },
   });
 
   const resetMutation = useMutation({
@@ -82,6 +87,9 @@ export function ButtonsTab() {
       setDraftStyles(data);
       queryClient.setQueryData(['button-styles'], data);
     },
+    onError: () => {
+      notify.error(t('common.error'));
+    },
   });
 
   const updateSection = useCallback(
@@ -333,7 +341,11 @@ export function ButtonsTab() {
       {/* Reset */}
       <div className="flex justify-end">
         <button
-          onClick={() => resetMutation.mutate()}
+          onClick={() => {
+            if (window.confirm(t('admin.buttons.resetConfirm'))) {
+              resetMutation.mutate();
+            }
+          }}
           disabled={resetMutation.isPending}
           className="rounded-xl bg-dark-700 px-4 py-2 text-sm text-dark-300 transition-colors hover:bg-dark-600 disabled:opacity-50"
         >

src/locales/en.json

@@ -1292,6 +1292,7 @@
       "emojiId": "Custom Emoji ID",
       "emojiPlaceholder": "Custom emoji ID (optional)",
       "resetAll": "Reset all styles",
+      "resetConfirm": "Reset all button styles to defaults?",
       "hidden": "Hidden",
       "customLabels": "Button labels",
       "labelPlaceholder": "Custom button text",

src/locales/fa.json

@@ -1001,6 +1001,7 @@
       "emojiId": "شناسه ایموجی سفارشی",
       "emojiPlaceholder": "شناسه ایموجی سفارشی (اختیاری)",
       "resetAll": "بازنشانی همه سبک‌ها",
+      "resetConfirm": "همه سبک‌های دکمه به حالت پیش‌فرض بازنشانی شوند؟",
       "hidden": "پنهان",
       "customLabels": "نام‌های دکمه",
       "labelPlaceholder": "متن سفارشی دکمه",

src/locales/ru.json

@@ -1807,6 +1807,7 @@
       "emojiId": "Custom Emoji ID",
       "emojiPlaceholder": "ID кастомного эмодзи (необязательно)",
       "resetAll": "Сбросить все стили",
+      "resetConfirm": "Сбросить все стили кнопок к значениям по умолчанию?",
       "hidden": "Скрыта",
       "customLabels": "Названия кнопки",
       "labelPlaceholder": "Свой текст кнопки",

src/locales/zh.json

@@ -1039,6 +1039,7 @@
       "emojiId": "自定义表情 ID",
       "emojiPlaceholder": "自定义表情 ID（可选）",
       "resetAll": "重置所有样式",
+      "resetConfirm": "将所有按钮样式重置为默认值？",
       "hidden": "已隐藏",
       "customLabels": "按钮名称",
       "labelPlaceholder": "自定义按钮文本",