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/cjs/event/events/IPointerEventInit.d.ts

@@ -0,0 +1,19 @@
+import IMouseEventInit from './IMouseEventInit.cjs';
+import PointerEvent from './PointerEvent.cjs';
+export default interface IPointerEventInit extends IMouseEventInit {
+    pointerId?: number;
+    width?: number;
+    height?: number;
+    pressure?: number;
+    tangentialPressure?: number;
+    tiltX?: number;
+    tiltY?: number;
+    twist?: number;
+    altitudeAngle?: number;
+    azimuthAngle?: number;
+    pointerType?: string;
+    isPrimary?: boolean;
+    coalescedEvents?: PointerEvent[];
+    predictedEvents?: PointerEvent[];
+}
+//# sourceMappingURL=IPointerEventInit.d.ts.map