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/TouchEvent.cjs

@@ -0,0 +1,36 @@
+"use strict";
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+const UIEvent_js_1 = __importDefault(require("../UIEvent.cjs"));
+/**
+ *
+ */
+class TouchEvent extends UIEvent_js_1.default {
+    altKey;
+    changedTouches;
+    ctrlKey;
+    metaKey;
+    shiftKey;
+    targetTouches;
+    touches;
+    /**
+     * Constructor.
+     *
+     * @param type Event type.
+     * @param [eventInit] Event init.
+     */
+    constructor(type, eventInit = null) {
+        super(type, eventInit);
+        this.altKey = eventInit?.altKey ?? false;
+        this.changedTouches = eventInit?.changedTouches ?? [];
+        this.ctrlKey = eventInit?.ctrlKey ?? false;
+        this.metaKey = eventInit?.metaKey ?? false;
+        this.shiftKey = eventInit?.shiftKey ?? false;
+        this.targetTouches = eventInit?.targetTouches ?? [];
+        this.touches = eventInit?.touches ?? [];
+    }
+}
+exports.default = TouchEvent;
+//# sourceMappingURL=TouchEvent.cjs.map