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/attr/Attr.d.ts

@@ -0,0 +1,77 @@
+import Element from '../element/Element.js';
+import Node from '../node/Node.js';
+import * as PropertySymbol from '../../PropertySymbol.js';
+import NodeTypeEnum from '../node/NodeTypeEnum.js';
+/**
+ * Attribute node interface.
+ *
+ * Reference: https://developer.mozilla.org/en-US/docs/Web/API/Attr.
+ */
+export default class Attr extends Node implements Attr {
+    cloneNode: (deep?: boolean) => Attr;
+    [PropertySymbol.nodeType]: NodeTypeEnum;
+    [PropertySymbol.namespaceURI]: string | null;
+    [PropertySymbol.name]: string | null;
+    [PropertySymbol.localName]: string | null;
+    [PropertySymbol.prefix]: string | null;
+    [PropertySymbol.value]: string | null;
+    [PropertySymbol.specified]: boolean;
+    [PropertySymbol.ownerElement]: Element | null;
+    /**
+     * Returns specified.
+     *
+     * @returns Specified.
+     */
+    get specified(): boolean;
+    /**
+     * Returns owner element.
+     *
+     * @returns Owner element.
+     */
+    get ownerElement(): Element | null;
+    /**
+     * Returns value.
+     *
+     * @returns Value.
+     */
+    get value(): string;
+    /**
+     * Sets value.
+     *
+     * @param value Value.
+     */
+    set value(value: string);
+    /**
+     * Returns name.
+     *
+     * @returns Name.
+     */
+    get name(): string;
+    /**
+     * Returns local name.
+     *
+     * @returns Local name.
+     */
+    get localName(): string;
+    /**
+     * Returns prefix.
+     *
+     * @returns Prefix.
+     */
+    get prefix(): string;
+    /**
+     * @override
+     */
+    get textContent(): string;
+    /**
+     * Returns namespace URI.
+     *
+     * @returns Namespace URI.
+     */
+    get namespaceURI(): string | null;
+    /**
+     * @override
+     */
+    [PropertySymbol.cloneNode](deep?: boolean): Attr;
+}
+//# sourceMappingURL=Attr.d.ts.map

frontend/node_modules/happy-dom/lib/nodes/attr/Attr.d.ts.map

@@ -0,0 +1 @@
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frontend/node_modules/happy-dom/lib/nodes/attr/Attr.js

@@ -0,0 +1,102 @@
+import Node from '../node/Node.js';
+import * as PropertySymbol from '../../PropertySymbol.js';
+import NodeTypeEnum from '../node/NodeTypeEnum.js';
+/**
+ * Attribute node interface.
+ *
+ * Reference: https://developer.mozilla.org/en-US/docs/Web/API/Attr.
+ */
+export default class Attr extends Node {
+    [PropertySymbol.nodeType] = NodeTypeEnum.attributeNode;
+    [PropertySymbol.namespaceURI] = null;
+    [PropertySymbol.name] = null;
+    [PropertySymbol.localName] = null;
+    [PropertySymbol.prefix] = null;
+    [PropertySymbol.value] = null;
+    [PropertySymbol.specified] = true;
+    [PropertySymbol.ownerElement] = null;
+    /**
+     * Returns specified.
+     *
+     * @returns Specified.
+     */
+    get specified() {
+        return this[PropertySymbol.specified];
+    }
+    /**
+     * Returns owner element.
+     *
+     * @returns Owner element.
+     */
+    get ownerElement() {
+        return this[PropertySymbol.ownerElement];
+    }
+    /**
+     * Returns value.
+     *
+     * @returns Value.
+     */
+    get value() {
+        return this[PropertySymbol.value];
+    }
+    /**
+     * Sets value.
+     *
+     * @param value Value.
+     */
+    set value(value) {
+        this[PropertySymbol.value] = value;
+    }
+    /**
+     * Returns name.
+     *
+     * @returns Name.
+     */
+    get name() {
+        return this[PropertySymbol.name];
+    }
+    /**
+     * Returns local name.
+     *
+     * @returns Local name.
+     */
+    get localName() {
+        return this[PropertySymbol.localName];
+    }
+    /**
+     * Returns prefix.
+     *
+     * @returns Prefix.
+     */
+    get prefix() {
+        return this[PropertySymbol.prefix];
+    }
+    /**
+     * @override
+     */
+    get textContent() {
+        return this[PropertySymbol.value];
+    }
+    /**
+     * Returns namespace URI.
+     *
+     * @returns Namespace URI.
+     */
+    get namespaceURI() {
+        return this[PropertySymbol.namespaceURI];
+    }
+    /**
+     * @override
+     */
+    [PropertySymbol.cloneNode](deep = false) {
+        const clone = super[PropertySymbol.cloneNode](deep);
+        clone[PropertySymbol.namespaceURI] = this[PropertySymbol.namespaceURI];
+        clone[PropertySymbol.name] = this[PropertySymbol.name];
+        clone[PropertySymbol.localName] = this[PropertySymbol.localName];
+        clone[PropertySymbol.prefix] = this[PropertySymbol.prefix];
+        clone[PropertySymbol.value] = this[PropertySymbol.value];
+        clone[PropertySymbol.specified] = this[PropertySymbol.specified];
+        return clone;
+    }
+}
+//# sourceMappingURL=Attr.js.map

frontend/node_modules/happy-dom/lib/nodes/attr/Attr.js.map

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