feat: Reinitialize frontend with SvelteKit and TypeScript

- Delete old Vite+Svelte frontend
- Initialize new SvelteKit project with TypeScript
- Configure Tailwind CSS v4 + DaisyUI
- Implement JWT authentication with auto-refresh
- Create login page with form validation (Zod)
- Add protected route guards
- Update Docker configuration for single-stage build
- Add E2E tests with Playwright (6/11 passing)
- Fix Svelte 5 reactivity with $state() runes

Known issues:
- 5 E2E tests failing (timing/async issues)
- Token refresh implementation needs debugging
- Validation error display timing

frontend/node_modules/happy-dom/lib/event/events/IStorageEventInit.d.ts

@@ -0,0 +1,10 @@
+import IEventInit from '../IEventInit.js';
+import Storage from '../../storage/Storage.js';
+export default interface IStorageEventInit extends IEventInit {
+    key?: string;
+    oldValue?: string;
+    newValue?: string;
+    url?: string;
+    storageArea?: Storage;
+}
+//# sourceMappingURL=IStorageEventInit.d.ts.map