Refactor i18n structure and update language files

- Removed old validation and common language files for English and Indonesian.
- Created new language files for English and Indonesian under the updated directory structure.
- Updated setup to reflect new language file paths and changed default language to English.
- Modified storage keys from 'locale' to 'language' for consistency.
- Added new language files for various modules including bookmarks, history, navigation, and system settings.
- Introduced new booking module language files for both English and Indonesian.
- Implemented a login page component with basic structure.

apps/web/src/core/components/loading-screen.tsx

@@ -4,7 +4,7 @@ export const LoadingScreen = () => {
   return (
     <div className="fixed inset-0 z-50 flex h-screen w-screen items-center justify-center bg-white">
       <Stack align="center" gap="sm">
-        <Loader color="blue" size="lg" type="dots" />
+        <Loader color="brand" size="lg" type="dots" />
       </Stack>
     </div>
   );

apps/web/src/core/environment/index.ts

@@ -3,9 +3,19 @@
  * DO NOT use `import.meta.env` directly in components. Import this `ENV` object instead.
  */
 export const ENV = {
-  API_BASE_URL: import.meta.env.VITE_API_BASE_URL || 'http://localhost:8000/api',
-  APP_ENV: (import.meta.env.VITE_APP_ENV || 'development') as 'development' | 'staging' | 'production',
+  DEFAULT_LANGUAGE: 'en',
+
   IS_PROD: import.meta.env.VITE_APP_ENV === 'production',
+  APP_ENV: (import.meta.env.VITE_APP_ENV || 'development') as 'development' | 'staging' | 'production',
+
+  APP_NAME: import.meta.env.VITE_APP_NAME || 'fe-monorepo-web',
+  APP_VERSION: import.meta.env.VITE_APP_VERSION || '0.0.0',
+
+  API_BASE_URL: import.meta.env.VITE_API_BASE_URL || 'http://localhost:8000/api',
+
+  // Observability
+  FARO_URL: import.meta.env.VITE_FARO_URL || 'https://telemetry.eigen.co.id/collect',
+  OTLP_TRACE_URL: import.meta.env.VITE_OTLP_TRACE_URL || 'https://telemetry.eigen.co.id/v1/traces',
 
   // CouchDB Connection
   COUCHDB_BASE_URL: import.meta.env.VITE_COUCHDB_BASE_URL || 'http://localhost:5984',

apps/web/src/core/lib/api-client.ts

@@ -1,5 +1,7 @@
 import { createHttpClient } from '@repo/core-api/http-client';
 import { faroAdapter } from '@repo/core-api/observability';
+import { ENV } from '../environment';
+import { AppStorageKey, secureStorage } from '../storage/local';
 
 /**
  * Enterprise HTTP client for `apps/web`.
@@ -15,17 +17,24 @@ import { faroAdapter } from '@repo/core-api/observability';
  */
 export const apiClient = createHttpClient(
   {
-    baseURL: import.meta.env.VITE_API_URL ?? 'http://localhost:8080/api/v1',
+    baseURL: ENV.API_BASE_URL,
     timeout: 15000,
     observability: faroAdapter,
   },
   {
     // ── Auth Interceptor ──────────────────────────────────────────
     onRequest: async (config) => {
+      config.headers['ex-app-name'] = ENV.APP_NAME;
+      config.headers['ex-app-version'] = ENV.APP_VERSION;
+      config.headers['ex-timezone-offset-minutes'] = new Date().getTimezoneOffset();
+      config.headers['ex-timezone-offset-hours'] = Math.floor(new Date().getTimezoneOffset() / 60);
+
+      const language = await secureStorage.getItem<string>(AppStorageKey.LANGUAGE);
+      config.headers['ex-language'] = language ?? ENV.DEFAULT_LANGUAGE;
+
       const token = localStorage.getItem('access_token');
-      if (token) {
-        config.headers.Authorization = `Bearer ${token}`;
-      }
+      if (token) config.headers.Authorization = `Bearer ${token}`;
+
       return config;
     },
 

apps/web/src/core/storage/local/index.ts

@@ -2,7 +2,7 @@ import { createLocalStorage, createIndexedDB } from '@repo/core-storage';
 
 export const AppStorageKey = {
   USER_PROFILE: 'user_profile',
-  LOCALE: 'app_locale',
+  LANGUAGE: 'app_language',
   THEME: 'app_theme',
   ACCESS_TOKEN: 'access_token',
   REFRESH_TOKEN: 'refresh_token',
@@ -22,7 +22,7 @@ export const ENCRYPTED_KEYS = new Set<AppStorageKeyValue>([
 ]);
 
 export const PLAIN_KEYS = new Set<AppStorageKeyValue>([
-  AppStorageKey.LOCALE,
+  AppStorageKey.LANGUAGE,
   AppStorageKey.THEME,
   AppStorageKey.MOCK_DB_COMPANY_A,
   AppStorageKey.OFFLINE_DRAFT,