feat(i18n): add Russian locale

frontend/index.html

@@ -115,40 +115,103 @@
       }
     </style>
     <script>
-      // Flash prevention: apply theme before CSS loads
-                        (() => {
-                          let stored = null;
-                          try {
-                            stored = localStorage.getItem('windshift-color-mode');
-                          } catch {
-                            // Storage can be unavailable in hardened/private browser contexts.
-                          }
-                          const prefersDark = window.matchMedia('(prefers-color-scheme: dark)').matches;
-                          const mode = stored === 'dark' || (stored === 'system' && prefersDark) || (!stored && prefersDark) ? 'dark' : 'light';
-                          document.documentElement.dataset.colorMode = mode;
+      // Flash prevention: apply theme before CSS loads.
+      (() => {
+        let storedColorMode = null;
+        let storedLocale = null;
+        try {
+          storedColorMode = localStorage.getItem('windshift-color-mode');
+          storedLocale = localStorage.getItem('windshift-locale');
+        } catch {
+          // Storage can be unavailable in hardened/private browser contexts.
+        }
+
+        const prefersDark = window.matchMedia('(prefers-color-scheme: dark)').matches;
+        const colorMode =
+          storedColorMode === 'dark' ||
+          (storedColorMode === 'system' && prefersDark) ||
+          (!storedColorMode && prefersDark)
+            ? 'dark'
+            : 'light';
+        document.documentElement.dataset.colorMode = colorMode;
+
+        const bootTranslations = {
+          en: {
+            starting: 'Starting Windshift…',
+            slow: 'This is taking longer than expected. Check your connection or server.',
+            retry: 'Retry'
+          },
+          de: {
+            starting: 'Windshift wird gestartet…',
+            slow: 'Dies dauert länger als erwartet. Überprüfen Sie Ihre Verbindung oder den Server.',
+            retry: 'Erneut versuchen'
+          },
+          es: {
+            starting: 'Iniciando Windshift…',
+            slow: 'Esto está tardando más de lo esperado. Comprueba tu conexión o el servidor.',
+            retry: 'Reintentar'
+          },
+          ar: {
+            starting: 'جارٍ تشغيل Windshift…',
+            slow: 'يستغرق هذا وقتًا أطول من المتوقع. تحقق من اتصالك أو الخادم.',
+            retry: 'إعادة المحاولة'
+          },
+          'pt-BR': {
+            starting: 'Iniciando o Windshift…',
+            slow: 'Isso está demorando mais do que o esperado. Verifique sua conexão ou o servidor.',
+            retry: 'Tentar novamente'
+          },
+          ru: {
+            starting: 'Запуск Windshift…',
+            slow: 'Это занимает больше времени, чем ожидалось. Проверьте подключение или сервер.',
+            retry: 'Повторить'
+          },
+          'zh-CN': {
+            starting: '正在启动 Windshift…',
+            slow: '所需时间超出预期。请检查网络连接或服务器。',
+            retry: '重试'
+          }
+        };
+        const supportedLocales = Object.keys(bootTranslations);
+        const browserLocale = navigator.language || 'en';
+        const locale =
+          (storedLocale && supportedLocales.includes(storedLocale) && storedLocale) ||
+          supportedLocales.find((candidate) => candidate.toLowerCase() === browserLocale.toLowerCase()) ||
+          supportedLocales.find(
+            (candidate) => candidate.split('-')[0] === browserLocale.toLowerCase().split('-')[0]
+          ) ||
+          'en';
+        const messages = bootTranslations[locale];
+        document.documentElement.lang = locale;
+        document.documentElement.dir = locale === 'ar' ? 'rtl' : 'ltr';
+
+        window.addEventListener('DOMContentLoaded', () => {
+          const boot = document.getElementById('windshift-boot');
+          const starting = document.getElementById('windshift-boot-starting');
+          const retry = document.getElementById('windshift-boot-retry');
+          const detail = document.getElementById('windshift-boot-detail');
+          if (!boot || !starting || !retry || !detail) return;
 
-                          window.addEventListener('DOMContentLoaded', () => {
-                            const boot = document.getElementById('windshift-boot');
-                            const retry = document.getElementById('windshift-boot-retry');
-                            const detail = document.getElementById('windshift-boot-detail');
-                            if (!boot || !retry || !detail) return;
-                            retry.addEventListener('click', () => location.reload());
-                            window.setTimeout(() => {
-                              // main.js removes the placeholder before mounting App.
-                              if (!document.getElementById('windshift-boot')) return;
-                              detail.hidden = false;
-                              retry.hidden = false;
-                            }, 10_000);
-                          });
-                        })();
+          starting.textContent = messages.starting;
+          detail.textContent = messages.slow;
+          retry.textContent = messages.retry;
+          retry.addEventListener('click', () => location.reload());
+          window.setTimeout(() => {
+            // main.js removes the placeholder before mounting App.
+            if (!document.getElementById('windshift-boot')) return;
+            detail.hidden = false;
+            retry.hidden = false;
+          }, 10_000);
+        });
+      })();
     </script>
   </head>
   <body>
     <div id="app">
       <div id="windshift-boot" role="status" aria-live="polite">
         <div>
           <img class="boot-logo" src="windshift-3.svg" alt="Windshift" width="64" height="64" />
-          <p>Starting Windshift…</p>
+          <p id="windshift-boot-starting">Starting Windshift…</p>
           <p id="windshift-boot-detail" class="boot-detail" hidden>
             This is taking longer than expected. Check your connection or server.
           </p>

frontend/package.json

@@ -20,7 +20,7 @@
     "format:check": "biome format .",
     "lint": "biome lint .",
     "lint:fix": "biome lint --write .",
-    "check": "biome check . && node scripts/check-shortcuts.js && node scripts/check-i18n.js",
+    "check": "biome check . && node scripts/check-shortcuts.js && node scripts/check-i18n.js && node scripts/check-hardcoded-i18n.js",
     "check:entry-assets": "node scripts/check-entry-assets.js",
     "check:fix": "biome check --write .",
     "test": "bun --bun vitest",

frontend/scripts/check-hardcoded-i18n.js

@@ -0,0 +1,107 @@
+import { readFileSync } from 'node:fs';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+const root = path.resolve(path.dirname(fileURLToPath(import.meta.url)), '..');
+
+// This list is an incremental ratchet: once a user-facing screen has been
+// migrated, literal English UI copy must not return to it.
+const guardedFiles = [
+  'src/lib/layout/DashboardCustomizationSidebar.svelte',
+  'src/lib/pages/Homepage.svelte',
+  'src/lib/features/workflows/WorkflowBuilder.svelte',
+  'src/lib/pages/Screens.svelte',
+  'src/lib/pickers/ConfigurationSetPicker.svelte',
+  'src/lib/pickers/ScreenPicker.svelte',
+  'src/lib/pickers/WorkflowPicker.svelte',
+  'src/lib/settings/ConfigurationSetManager.svelte',
+  'src/lib/settings/ConfigurationSetItemTypes.svelte',
+  'src/lib/settings/ActionCapabilitiesManager.svelte',
+  'src/lib/settings/ActionCredentialManager.svelte',
+  'src/lib/settings/AgentTemplateManager.svelte',
+  'src/lib/settings/CapabilityManager.svelte',
+  'src/lib/settings/HierarchyLevelManager.svelte',
+  'src/lib/settings/ItemTypeManager.svelte',
+  'src/lib/settings/IntegrationProviderManager.svelte',
+  'src/lib/settings/IntegrationsManager.svelte',
+  'src/lib/settings/LLMConnectionManager.svelte',
+  'src/lib/settings/LinkTypeManager.svelte',
+  'src/lib/settings/OAuthClientManager.svelte',
+  'src/lib/settings/PriorityManager.svelte',
+  'src/lib/settings/StatusCategoryManager.svelte',
+  'src/lib/settings/StatusManager.svelte',
+  'src/lib/settings/ThemeManager.svelte',
+  'src/lib/settings/RunnerPoolManager.svelte',
+  'src/lib/workspaces/WorkspaceConfigurationAssigner.svelte',
+  'src/lib/workspaces/WorkspaceConfigurationPreview.svelte',
+  'src/lib/workspaces/WorkspaceMembers.svelte',
+  'src/lib/workspaces/WorkspaceCustomizationSidebar.svelte',
+  'src/lib/workspaces/WorkspaceNavigation.svelte',
+  'src/lib/workspaces/WorkspaceWelcome.svelte',
+  'src/lib/workspaces/Workspaces.svelte',
+  'src/lib/widgets/CompletionChartWidget.svelte',
+  'src/lib/widgets/CreatedChartWidget.svelte',
+  'src/lib/widgets/IterationTimelineWidget.svelte',
+  'src/lib/widgets/MilestoneProgressWidget.svelte',
+  'src/lib/widgets/MyTasksWidget.svelte',
+  'src/lib/widgets/OverdueItemsWidget.svelte',
+  'src/lib/widgets/RecentItemsWidget.svelte',
+  'src/lib/widgets/StatsCardWidget.svelte',
+  'src/lib/widgets/TestCoverageWidget.svelte',
+  'src/lib/widgets/UpcomingDeadlinesWidget.svelte',
+  'src/lib/widgets/WidgetState.svelte',
+  'src/lib/widgets/WidgetWrapper.svelte',
+  'src/lib/widgets/dashboard/AssignedToMeWidget.svelte',
+  'src/lib/widgets/dashboard/DailyBriefingWidget.svelte',
+  'src/lib/widgets/dashboard/DashboardItemRow.svelte',
+  'src/lib/widgets/dashboard/DashboardTaskList.svelte',
+  'src/lib/widgets/dashboard/DueMark.svelte',
+  'src/lib/widgets/dashboard/PersonalTasksWidget.svelte',
+  'src/lib/widgets/dashboard/QuickAccessWidget.svelte',
+  'src/lib/widgets/dashboard/RecentWorkspacesWidget.svelte',
+  'src/lib/widgets/dashboard/SavedSearchWidget.svelte',
+  'src/lib/widgets/dashboard/UpcomingMilestonesWidget.svelte',
+  'src/lib/widgets/dashboard/WatchedItemsWidget.svelte',
+  'src/lib/widgets/dashboard/WhatsNewWidget.svelte',
+  'src/lib/widgets/dashboard/YourActivityWidget.svelte',
+];
+
+const rules = [
+  {
+    name: 'visible text',
+    pattern: />\s*([A-Z][^<{\n]*?)\s*</g,
+  },
+  {
+    name: 'localizable attribute',
+    pattern:
+      /(?:placeholder|title|aria-label|emptyMessage|emptyDescription|confirmLabel|cancelLabel|subtitle)=["']([A-Z][^"']+)["']/g,
+  },
+];
+
+const intentionalLiterals = new Set(['Esc']);
+
+const violations = [];
+
+for (const relativeFile of guardedFiles) {
+  // Script blocks contain operators such as `=>` that look like HTML text to
+  // the lightweight regex guard. UI copy lives in the component markup.
+  const source = readFileSync(path.join(root, relativeFile), 'utf8').replace(
+    /<script\b[^>]*>[\s\S]*?<\/script>/g,
+    (script) => '\n'.repeat(script.split('\n').length - 1)
+  );
+  for (const rule of rules) {
+    for (const match of source.matchAll(rule.pattern)) {
+      if (intentionalLiterals.has(match[1].trim())) continue;
+      const line = source.slice(0, match.index).split('\n').length;
+      violations.push(`${relativeFile}:${line} ${rule.name}: ${JSON.stringify(match[1].trim())}`);
+    }
+  }
+}
+
+if (violations.length > 0) {
+  console.error('Hardcoded i18n guard failed. Move this copy into the locale catalog:');
+  for (const violation of violations) console.error(`  ${violation}`);
+  process.exit(1);
+}
+
+console.log(`Hardcoded i18n guard passed (${guardedFiles.length} migrated screens).`);