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/nodes/html-data-list-element/HTMLDataListElement.d.ts

@@ -0,0 +1,19 @@
+import HTMLElement from '../html-element/HTMLElement.js';
+import * as PropertySymbol from '../../PropertySymbol.js';
+import HTMLCollection from '../element/HTMLCollection.js';
+import HTMLOptionElement from '../html-option-element/HTMLOptionElement.js';
+/**
+ * HTMLDataListElement
+ *
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/HTMLDataListElement
+ */
+export default class HTMLDataListElement extends HTMLElement {
+    [PropertySymbol.options]: HTMLCollection<HTMLOptionElement> | null;
+    /**
+     * Returns options.
+     *
+     * @returns Options.
+     */
+    get options(): HTMLCollection<HTMLOptionElement>;
+}
+//# sourceMappingURL=HTMLDataListElement.d.ts.map

frontend/node_modules/happy-dom/lib/nodes/html-data-list-element/HTMLDataListElement.d.ts.map

@@ -0,0 +1 @@
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frontend/node_modules/happy-dom/lib/nodes/html-data-list-element/HTMLDataListElement.js

@@ -0,0 +1,23 @@
+import HTMLElement from '../html-element/HTMLElement.js';
+import * as PropertySymbol from '../../PropertySymbol.js';
+import ParentNodeUtility from '../parent-node/ParentNodeUtility.js';
+/**
+ * HTMLDataListElement
+ *
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/HTMLDataListElement
+ */
+export default class HTMLDataListElement extends HTMLElement {
+    [PropertySymbol.options] = null;
+    /**
+     * Returns options.
+     *
+     * @returns Options.
+     */
+    get options() {
+        if (!this[PropertySymbol.options]) {
+            this[PropertySymbol.options] = (ParentNodeUtility.getElementsByTagName(this, 'OPTION'));
+        }
+        return this[PropertySymbol.options];
+    }
+}
+//# sourceMappingURL=HTMLDataListElement.js.map

frontend/node_modules/happy-dom/lib/nodes/html-data-list-element/HTMLDataListElement.js.map

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