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-mod-element/HTMLModElement.d.ts

@@ -0,0 +1,33 @@
+import HTMLElement from '../html-element/HTMLElement.js';
+/**
+ * HTMLModElement
+ *
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/HTMLModElement
+ */
+export default class HTMLModElement extends HTMLElement {
+    /**
+     * Returns source.
+     *
+     * @returns Source.
+     */
+    get cite(): string;
+    /**
+     * Sets source.
+     *
+     * @param cite Source.
+     */
+    set cite(cite: string);
+    /**
+     * Returns date time.
+     *
+     * @returns Date time.
+     */
+    get dateTime(): string;
+    /**
+     * Sets date time.
+     *
+     * @param dateTime Date time.
+     */
+    set dateTime(dateTime: string);
+}
+//# sourceMappingURL=HTMLModElement.d.ts.map

frontend/node_modules/happy-dom/lib/nodes/html-mod-element/HTMLModElement.d.ts.map

@@ -0,0 +1 @@
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frontend/node_modules/happy-dom/lib/nodes/html-mod-element/HTMLModElement.js

@@ -0,0 +1,51 @@
+import HTMLElement from '../html-element/HTMLElement.js';
+import * as PropertySymbol from '../../PropertySymbol.js';
+/**
+ * HTMLModElement
+ *
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/HTMLModElement
+ */
+export default class HTMLModElement extends HTMLElement {
+    /**
+     * Returns source.
+     *
+     * @returns Source.
+     */
+    get cite() {
+        if (!this.hasAttribute('cite')) {
+            return '';
+        }
+        try {
+            return new URL(this.getAttribute('cite'), this[PropertySymbol.ownerDocument].location.href)
+                .href;
+        }
+        catch (e) {
+            return this.getAttribute('cite');
+        }
+    }
+    /**
+     * Sets source.
+     *
+     * @param cite Source.
+     */
+    set cite(cite) {
+        this.setAttribute('cite', cite);
+    }
+    /**
+     * Returns date time.
+     *
+     * @returns Date time.
+     */
+    get dateTime() {
+        return this.getAttribute('datetime') || '';
+    }
+    /**
+     * Sets date time.
+     *
+     * @param dateTime Date time.
+     */
+    set dateTime(dateTime) {
+        this.setAttribute('datetime', dateTime);
+    }
+}
+//# sourceMappingURL=HTMLModElement.js.map

frontend/node_modules/happy-dom/lib/nodes/html-mod-element/HTMLModElement.js.map

@@ -0,0 +1 @@
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