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-details-element/HTMLDetailsElement.d.ts

@@ -0,0 +1,36 @@
+import Event from '../../event/Event.js';
+import HTMLElement from '../html-element/HTMLElement.js';
+import * as PropertySymbol from '../../PropertySymbol.js';
+import Attr from '../attr/Attr.js';
+/**
+ * HTMLDetailsElement
+ *
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/HTMLDetailsElement
+ */
+export default class HTMLDetailsElement extends HTMLElement {
+    get ontoggle(): ((event: Event) => void) | null;
+    set ontoggle(value: ((event: Event) => void) | null);
+    /**
+     * Returns the open attribute.
+     */
+    get open(): boolean;
+    /**
+     * Sets the open attribute.
+     *
+     * @param open New value.
+     */
+    set open(open: boolean);
+    /**
+     * @override
+     */
+    [PropertySymbol.onSetAttribute](attribute: Attr, replacedAttribute: Attr | null): void;
+    /**
+     * @override
+     */
+    [PropertySymbol.onRemoveAttribute](removedAttribute: Attr): void;
+    /**
+     * @override
+     */
+    dispatchEvent(event: Event): boolean;
+}
+//# sourceMappingURL=HTMLDetailsElement.d.ts.map

frontend/node_modules/happy-dom/lib/nodes/html-details-element/HTMLDetailsElement.d.ts.map

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frontend/node_modules/happy-dom/lib/nodes/html-details-element/HTMLDetailsElement.js

@@ -0,0 +1,76 @@
+import Event from '../../event/Event.js';
+import HTMLElement from '../html-element/HTMLElement.js';
+import * as PropertySymbol from '../../PropertySymbol.js';
+import EventPhaseEnum from '../../event/EventPhaseEnum.js';
+import MouseEvent from '../../event/events/MouseEvent.js';
+import ElementEventAttributeUtility from '../element/ElementEventAttributeUtility.js';
+/**
+ * HTMLDetailsElement
+ *
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/HTMLDetailsElement
+ */
+export default class HTMLDetailsElement extends HTMLElement {
+    // Events
+    /* eslint-disable jsdoc/require-jsdoc */
+    get ontoggle() {
+        return ElementEventAttributeUtility.getEventListener(this, 'ontoggle');
+    }
+    set ontoggle(value) {
+        this[PropertySymbol.propertyEventListeners].set('ontoggle', value);
+    }
+    /* eslint-enable jsdoc/require-jsdoc */
+    /**
+     * Returns the open attribute.
+     */
+    get open() {
+        return this.getAttribute('open') !== null;
+    }
+    /**
+     * Sets the open attribute.
+     *
+     * @param open New value.
+     */
+    set open(open) {
+        if (open) {
+            this.setAttribute('open', '');
+        }
+        else {
+            this.removeAttribute('open');
+        }
+    }
+    /**
+     * @override
+     */
+    [PropertySymbol.onSetAttribute](attribute, replacedAttribute) {
+        super[PropertySymbol.onSetAttribute](attribute, replacedAttribute);
+        if (attribute[PropertySymbol.name] === 'open') {
+            if (attribute[PropertySymbol.value] !== replacedAttribute?.[PropertySymbol.value]) {
+                this.dispatchEvent(new Event('toggle'));
+            }
+        }
+    }
+    /**
+     * @override
+     */
+    [PropertySymbol.onRemoveAttribute](removedAttribute) {
+        super[PropertySymbol.onRemoveAttribute](removedAttribute);
+        if (removedAttribute && removedAttribute[PropertySymbol.name] === 'open') {
+            this.dispatchEvent(new Event('toggle'));
+        }
+    }
+    /**
+     * @override
+     */
+    dispatchEvent(event) {
+        const returnValue = super.dispatchEvent(event);
+        if (!event[PropertySymbol.defaultPrevented] &&
+            event[PropertySymbol.target]?.[PropertySymbol.localName] === 'summary' &&
+            event.type === 'click' &&
+            event.eventPhase === EventPhaseEnum.bubbling &&
+            event instanceof MouseEvent) {
+            this.open = !this.open;
+        }
+        return returnValue;
+    }
+}
+//# sourceMappingURL=HTMLDetailsElement.js.map

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