feat: add runtime locale overrides

frontend/src/admin/AdminPanel.svelte

@@ -8,6 +8,7 @@
     Download,
     FileText,
     Globe2,
+    Languages,
     LayoutDashboard,
     LifeBuoy,
     Megaphone,
@@ -38,6 +39,7 @@
   import SupportSection from "./sections/SupportSection.svelte";
   import TariffEditorModal from "./sections/TariffEditorModal.svelte";
   import TariffsSection from "./sections/TariffsSection.svelte";
+  import TranslationsSection from "./sections/TranslationsSection.svelte";
   import AppearanceSection from "./sections/AppearanceSection.svelte";
   import UserDetailModal from "./sections/UserDetailModal.svelte";
   import UsersSection from "./sections/UsersSection.svelte";
@@ -51,6 +53,7 @@
   import { createAdminSupportStore } from "../lib/admin/stores/supportStore.js";
   import { createTariffsStore } from "../lib/admin/stores/tariffsStore.js";
   import { createThemesStore } from "../lib/admin/stores/themesStore.js";
+  import { createTranslationsStore } from "../lib/admin/stores/translationsStore.js";
   import { createUsersStore } from "../lib/admin/stores/usersStore.js";
   import {
     fmtDate,
@@ -83,6 +86,7 @@
   export let onSettingsSaved = () => {};
   export let onTariffsSaved = () => {};
   export let onThemesSaved = () => {};
+  export let onTranslationsSaved = () => {};
   export let brand = {};
   export let brandTitle = "/minishop";
   export let appFaviconUrl = "";
@@ -128,6 +132,7 @@
       items: [
         { id: "tariffs", label: at("nav_tariffs", {}, "Тарифы"), icon: Coins },
         { id: "appearance", label: at("nav_appearance", {}, "Внешний вид"), icon: Paintbrush },
+        { id: "translations", label: at("nav_translations", {}, "Переводы"), icon: Languages },
         { id: "settings", label: at("nav_settings", {}, "Настройки"), icon: Sliders },
       ],
     },
@@ -178,6 +183,14 @@
       title: at("section_appearance_title", {}, "Внешний вид"),
       subtitle: at("section_appearance_subtitle", {}, "Логотип, темы и акцентные цвета Mini App"),
     },
+    translations: {
+      title: at("section_translations_title", {}, "Переводы"),
+      subtitle: at(
+        "section_translations_subtitle",
+        {},
+        "Оверрайды строк локализации из базы данных и data/locales-overrides.json"
+      ),
+    },
     settings: {
       title: at("section_settings_title", {}, "Настройки приложения"),
       subtitle: at("section_settings_subtitle", {}, "Оверрайды над .env, применяются мгновенно"),
@@ -223,6 +236,7 @@
   const supportStore = createAdminSupportStore({ api, onToast: flash, at });
   const tariffsStore = createTariffsStore({ api, onToast: flash, onTariffsSaved, flash, at });
   const themesStore = createThemesStore({ api, onThemesSaved, flash, at });
+  const translationsStore = createTranslationsStore({ api, onToast: flash, at });
   const usersStore = createUsersStore({ api, onToast: flash, at });
 
   setContext("promosStore", promosStore);
@@ -236,13 +250,16 @@
   setContext("usersStore", usersStore);
   setContext("tariffsStore", tariffsStore);
   setContext("themesStore", themesStore);
+  setContext("translationsStore", translationsStore);
 
   $: usersStore.setActive(active);
   $: paymentsStore.setActive(active);
   $: supportStore.setActive(active);
   $: dirtyCount = Object.keys($settingsStore.settingsDirty || {}).length;
+  $: translationsDirtyCount = Object.keys($translationsStore.translationsDirty || {}).length;
   $: syncBusy = $statsStore.syncBusy;
   $: settingsSaving = $settingsStore.settingsSaving;
+  $: translationsSaving = $translationsStore.translationsSaving;
   $: meta = SECTION_META[active] || { title: active, subtitle: "" };
   $: currentLanguageOption =
     languageOptions.find((option) => option.value === currentLang) || languageOptions[0];
@@ -676,6 +693,27 @@
               : at("btn_save", {}, "Сохранить")}
           </AdminButton>
         {/if}
+        {#if active === "translations"}
+          {#if translationsDirtyCount}
+            <AdminBadge variant="warning"
+              >{at(
+                "settings_dirty_count",
+                { count: translationsDirtyCount },
+                "Изменений: " + translationsDirtyCount
+              )}</AdminBadge
+            >
+          {/if}
+          <AdminButton
+            variant="primary"
+            onclick={() => translationsStore.saveTranslations(onTranslationsSaved)}
+            disabled={!translationsDirtyCount || translationsSaving}
+          >
+            <Save size={14} />
+            {translationsSaving
+              ? at("btn_saving", {}, "Сохранение...")
+              : at("btn_save", {}, "Сохранить")}
+          </AdminButton>
+        {/if}
       </div>
     </header>
 
@@ -751,6 +789,10 @@
           {#if active === "settings"}
             <SettingsSection {at} {onSettingsSaved} {currentLang} />
           {/if}
+
+          {#if active === "translations"}
+            <TranslationsSection {at} {onTranslationsSaved} />
+          {/if}
         </div>
       {/key}
     </main>