refactor: restructure storage and environment modules; remove unused code

- Deleted unused PouchDB configuration and types from core storage.
- Removed Electron-related hooks and utilities that are no longer needed.
- Introduced new local storage management for application keys.
- Created a new environment wrapper for landing application.
- Added public HTTP client for landing application with minimal configuration.
- Implemented new PouchDB entities for items and POS configurations.
- Updated main application entry point to reflect new storage structure.

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

@@ -0,0 +1,42 @@
+import { createHttpClient } from '@repo/core-api/http-client';
+import { faroAdapter } from '@repo/core-api/observability';
+
+/**
+ * Enterprise HTTP client for `apps/web`.
+ *
+ * - Full Faro observability via the shared `faroAdapter`
+ * - Automatic Bearer token injection from localStorage
+ * - 401 redirect to `/auth/login`
+ * - Supports per-request `telemetryContext` for custom spans/tags
+ *
+ * All interceptors (auth, observability, error normalization)
+ * are baked into this instance. Import this singleton throughout
+ * the web application — never create raw axios instances.
+ */
+export const apiClient = createHttpClient(
+  {
+    baseURL: import.meta.env.VITE_API_URL ?? 'http://localhost:8080/api/v1',
+    timeout: 15000,
+    observability: faroAdapter,
+  },
+  {
+    // ── Auth Interceptor ──────────────────────────────────────────
+    onRequest: async (config) => {
+      const token = localStorage.getItem('access_token');
+      if (token) {
+        config.headers.Authorization = `Bearer ${token}`;
+      }
+      return config;
+    },
+
+    // ── Error Interceptor ─────────────────────────────────────────
+    onResponseError: async (error) => {
+      if (error.response?.status === 401) {
+        // Clear stale token and redirect to login
+        localStorage.removeItem('access_token');
+        window.location.href = '/auth/login';
+      }
+      throw error;
+    },
+  },
+);