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/document-fragment/DocumentFragment.d.ts

@@ -0,0 +1,119 @@
+import Node from '../node/Node.js';
+import * as PropertySymbol from '../../PropertySymbol.js';
+import Element from '../element/Element.js';
+import HTMLCollection from '../element/HTMLCollection.js';
+import NodeTypeEnum from '../node/NodeTypeEnum.js';
+import IHTMLElementTagNameMap from '../../config/IHTMLElementTagNameMap.js';
+import ISVGElementTagNameMap from '../../config/ISVGElementTagNameMap.js';
+import NodeList from '../node/NodeList.js';
+/**
+ * DocumentFragment.
+ */
+export default class DocumentFragment extends Node {
+    [PropertySymbol.children]: HTMLCollection<Element> | null;
+    [PropertySymbol.rootNode]: Node;
+    [PropertySymbol.nodeType]: NodeTypeEnum;
+    cloneNode: (deep?: boolean) => DocumentFragment;
+    /**
+     * Returns the document fragment children.
+     */
+    get children(): HTMLCollection<Element>;
+    /**
+     * Last element child.
+     *
+     * @returns Element.
+     */
+    get childElementCount(): number;
+    /**
+     * First element child.
+     *
+     * @returns Element.
+     */
+    get firstElementChild(): Element;
+    /**
+     * Last element child.
+     *
+     * @returns Element.
+     */
+    get lastElementChild(): Element;
+    /**
+     * Get text value of children.
+     *
+     * @returns Text content.
+     */
+    get textContent(): string;
+    /**
+     * Sets text content.
+     *
+     * @param textContent Text content.
+     */
+    set textContent(textContent: string);
+    /**
+     * Inserts a set of Node objects or DOMString objects after the last child of the ParentNode. DOMString objects are inserted as equivalent Text nodes.
+     *
+     * @param nodes List of Node or DOMString.
+     */
+    append(...nodes: (Node | string)[]): void;
+    /**
+     * Inserts a set of Node objects or DOMString objects before the first child of the ParentNode. DOMString objects are inserted as equivalent Text nodes.
+     *
+     * @param nodes List of Node or DOMString.
+     */
+    prepend(...nodes: (Node | string)[]): void;
+    /**
+     * Replaces the existing children of a node with a specified new set of children.
+     *
+     * @param nodes List of Node or DOMString.
+     */
+    replaceChildren(...nodes: (Node | string)[]): void;
+    /**
+     * Query CSS selector to find matching nodes.
+     *
+     * @param selector CSS selector.
+     * @returns Matching elements.
+     */
+    querySelectorAll<K extends keyof IHTMLElementTagNameMap>(selector: K): NodeList<IHTMLElementTagNameMap[K]>;
+    /**
+     * Query CSS selector to find matching elments.
+     *
+     * @param selector CSS selector.
+     * @returns Matching elements.
+     */
+    querySelectorAll<K extends keyof ISVGElementTagNameMap>(selector: K): NodeList<ISVGElementTagNameMap[K]>;
+    /**
+     * Query CSS selector to find matching elments.
+     *
+     * @param selector CSS selector.
+     * @returns Matching elements.
+     */
+    querySelectorAll(selector: string): NodeList<Element>;
+    /**
+     * Query CSS Selector to find matching node.
+     *
+     * @param selector CSS selector.
+     * @returns Matching element.
+     */
+    querySelector<K extends keyof IHTMLElementTagNameMap>(selector: K): IHTMLElementTagNameMap[K] | null;
+    /**
+     * Query CSS Selector to find a matching element.
+     *
+     * @param selector CSS selector.
+     * @returns Matching element.
+     */
+    querySelector<K extends keyof ISVGElementTagNameMap>(selector: K): ISVGElementTagNameMap[K] | null;
+    /**
+     * Query CSS Selector to find a matching element.
+     *
+     * @param selector CSS selector.
+     * @returns Matching element.
+     */
+    querySelector(selector: string): Element | null;
+    /**
+     * Returns an element by ID.
+     *
+     * @param id ID.
+     * @returns Matching element.
+     */
+    getElementById(id: string): Element | null;
+}
+//# sourceMappingURL=DocumentFragment.d.ts.map

frontend/node_modules/happy-dom/lib/nodes/document-fragment/DocumentFragment.d.ts.map

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frontend/node_modules/happy-dom/lib/nodes/document-fragment/DocumentFragment.js

@@ -0,0 +1,130 @@
+import Node from '../node/Node.js';
+import * as PropertySymbol from '../../PropertySymbol.js';
+import QuerySelector from '../../query-selector/QuerySelector.js';
+import ParentNodeUtility from '../parent-node/ParentNodeUtility.js';
+import HTMLCollection from '../element/HTMLCollection.js';
+import NodeTypeEnum from '../node/NodeTypeEnum.js';
+/**
+ * DocumentFragment.
+ */
+export default class DocumentFragment extends Node {
+    [PropertySymbol.children] = null;
+    [PropertySymbol.rootNode] = this;
+    [PropertySymbol.nodeType] = NodeTypeEnum.documentFragmentNode;
+    /**
+     * Returns the document fragment children.
+     */
+    get children() {
+        if (!this[PropertySymbol.children]) {
+            const elements = this[PropertySymbol.elementArray];
+            this[PropertySymbol.children] = new HTMLCollection(PropertySymbol.illegalConstructor, () => elements);
+        }
+        return this[PropertySymbol.children];
+    }
+    /**
+     * Last element child.
+     *
+     * @returns Element.
+     */
+    get childElementCount() {
+        return this[PropertySymbol.elementArray].length;
+    }
+    /**
+     * First element child.
+     *
+     * @returns Element.
+     */
+    get firstElementChild() {
+        return this[PropertySymbol.elementArray][0] ?? null;
+    }
+    /**
+     * Last element child.
+     *
+     * @returns Element.
+     */
+    get lastElementChild() {
+        const children = this[PropertySymbol.elementArray];
+        return children[children.length - 1] ?? null;
+    }
+    /**
+     * Get text value of children.
+     *
+     * @returns Text content.
+     */
+    get textContent() {
+        let result = '';
+        for (const childNode of this[PropertySymbol.nodeArray]) {
+            if (childNode[PropertySymbol.nodeType] === NodeTypeEnum.elementNode ||
+                childNode[PropertySymbol.nodeType] === NodeTypeEnum.textNode) {
+                result += childNode.textContent;
+            }
+        }
+        return result;
+    }
+    /**
+     * Sets text content.
+     *
+     * @param textContent Text content.
+     */
+    set textContent(textContent) {
+        const childNodes = this[PropertySymbol.nodeArray];
+        while (childNodes.length) {
+            this.removeChild(childNodes[0]);
+        }
+        if (textContent) {
+            this.appendChild(this[PropertySymbol.ownerDocument].createTextNode(textContent));
+        }
+    }
+    /**
+     * Inserts a set of Node objects or DOMString objects after the last child of the ParentNode. DOMString objects are inserted as equivalent Text nodes.
+     *
+     * @param nodes List of Node or DOMString.
+     */
+    append(...nodes) {
+        ParentNodeUtility.append(this, ...nodes);
+    }
+    /**
+     * Inserts a set of Node objects or DOMString objects before the first child of the ParentNode. DOMString objects are inserted as equivalent Text nodes.
+     *
+     * @param nodes List of Node or DOMString.
+     */
+    prepend(...nodes) {
+        ParentNodeUtility.prepend(this, ...nodes);
+    }
+    /**
+     * Replaces the existing children of a node with a specified new set of children.
+     *
+     * @param nodes List of Node or DOMString.
+     */
+    replaceChildren(...nodes) {
+        ParentNodeUtility.replaceChildren(this, ...nodes);
+    }
+    /**
+     * Query CSS selector to find matching elments.
+     *
+     * @param selector CSS selector.
+     * @returns Matching elements.
+     */
+    querySelectorAll(selector) {
+        return QuerySelector.querySelectorAll(this, selector);
+    }
+    /**
+     * Query CSS Selector to find a matching element.
+     *
+     * @param selector CSS selector.
+     * @returns Matching element.
+     */
+    querySelector(selector) {
+        return QuerySelector.querySelector(this, selector);
+    }
+    /**
+     * Returns an element by ID.
+     *
+     * @param id ID.
+     * @returns Matching element.
+     */
+    getElementById(id) {
+        return ParentNodeUtility.getElementById(this, id);
+    }
+}
+//# sourceMappingURL=DocumentFragment.js.map

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