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/@ark/util/out/lazily.js

@@ -0,0 +1,16 @@
+export const lazily = (thunk) => {
+    let cached;
+    return new Proxy({}, {
+        get: (_, prop) => {
+            if (!cached)
+                cached = thunk();
+            return cached[prop];
+        },
+        set: (_, prop, value) => {
+            if (!cached)
+                cached = thunk();
+            cached[prop] = value;
+            return true;
+        }
+    });
+};