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/nodes/html-label-element/HTMLLabelElement.d.ts

@@ -0,0 +1,53 @@
+import HTMLElement from '../html-element/HTMLElement.cjs';
+import * as PropertySymbol from '../../PropertySymbol.cjs';
+import HTMLFormElement from '../html-form-element/HTMLFormElement.cjs';
+import Event from '../../event/Event.cjs';
+import HTMLInputElement from '../html-input-element/HTMLInputElement.cjs';
+import HTMLButtonElement from '../html-button-element/HTMLButtonElement.cjs';
+import HTMLMeterElement from '../html-meter-element/HTMLMeterElement.cjs';
+import HTMLOutputElement from '../html-output-element/HTMLOutputElement.cjs';
+import HTMLProgressElement from '../html-progress-element/HTMLProgressElement.cjs';
+import HTMLSelectElement from '../html-select-element/HTMLSelectElement.cjs';
+import HTMLTextAreaElement from '../html-text-area-element/HTMLTextAreaElement.cjs';
+/**
+ * HTML Label Element.
+ *
+ * Reference:
+ * https://developer.mozilla.org/en-US/docs/Web/API/HTMLLabelElement.
+ */
+export default class HTMLLabelElement extends HTMLElement {
+    cloneNode: (deep?: boolean) => HTMLLabelElement;
+    /**
+     * Returns a string containing the ID of the labeled control. This reflects the "for" attribute.
+     *
+     * @returns ID of the labeled control.
+     */
+    get htmlFor(): string;
+    /**
+     * Sets a string containing the ID of the labeled control. This reflects the "for" attribute.
+     *
+     * @param htmlFor ID of the labeled control.
+     */
+    set htmlFor(htmlFor: string);
+    /**
+     * Returns an HTML element representing the control with which the label is associated.
+     *
+     * @returns Control element.
+     */
+    get control(): HTMLInputElement | HTMLButtonElement | HTMLMeterElement | HTMLOutputElement | HTMLProgressElement | HTMLSelectElement | HTMLTextAreaElement | null;
+    /**
+     * Returns the parent form element.
+     *
+     * @returns Form.
+     */
+    get form(): HTMLFormElement | null;
+    /**
+     * @override
+     */
+    [PropertySymbol.cloneNode](deep?: boolean): HTMLLabelElement;
+    /**
+     * @override
+     */
+    dispatchEvent(event: Event): boolean;
+}
+//# sourceMappingURL=HTMLLabelElement.d.ts.map