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/cjs/nodes/html-title-element/HTMLTitleElement.cjs

@@ -0,0 +1,84 @@
+"use strict";
+var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    var desc = Object.getOwnPropertyDescriptor(m, k);
+    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
+      desc = { enumerable: true, get: function() { return m[k]; } };
+    }
+    Object.defineProperty(o, k2, desc);
+}) : (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    o[k2] = m[k];
+}));
+var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
+    Object.defineProperty(o, "default", { enumerable: true, value: v });
+}) : function(o, v) {
+    o["default"] = v;
+});
+var __importStar = (this && this.__importStar) || (function () {
+    var ownKeys = function(o) {
+        ownKeys = Object.getOwnPropertyNames || function (o) {
+            var ar = [];
+            for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
+            return ar;
+        };
+        return ownKeys(o);
+    };
+    return function (mod) {
+        if (mod && mod.__esModule) return mod;
+        var result = {};
+        if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
+        __setModuleDefault(result, mod);
+        return result;
+    };
+})();
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+const HTMLElement_js_1 = __importDefault(require("../html-element/HTMLElement.cjs"));
+const NodeTypeEnum_js_1 = __importDefault(require("../node/NodeTypeEnum.cjs"));
+const PropertySymbol = __importStar(require("../../PropertySymbol.cjs"));
+/**
+ * HTMLTitleElement
+ *
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/HTMLTitleElement
+ */
+class HTMLTitleElement extends HTMLElement_js_1.default {
+    /**
+     * Returns text.
+     *
+     * @returns Text.
+     */
+    get text() {
+        let text = '';
+        for (const child of this[PropertySymbol.nodeArray]) {
+            if (child[PropertySymbol.nodeType] === NodeTypeEnum_js_1.default.textNode) {
+                text += child.textContent;
+            }
+        }
+        return text;
+    }
+    /**
+     * Sets text.
+     *
+     * @param text Text.
+     */
+    set text(text) {
+        this.textContent = text;
+    }
+    /**
+     * @override
+     */
+    get innerHTML() {
+        return this.getHTML();
+    }
+    /**
+     * @override
+     */
+    set innerHTML(html) {
+        this.textContent = html;
+    }
+}
+exports.default = HTMLTitleElement;
+//# sourceMappingURL=HTMLTitleElement.cjs.map

frontend/node_modules/happy-dom/cjs/nodes/html-title-element/HTMLTitleElement.cjs.map

@@ -0,0 +1 @@
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frontend/node_modules/happy-dom/cjs/nodes/html-title-element/HTMLTitleElement.d.ts

@@ -0,0 +1,29 @@
+import HTMLElement from '../html-element/HTMLElement.cjs';
+/**
+ * HTMLTitleElement
+ *
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/HTMLTitleElement
+ */
+export default class HTMLTitleElement extends HTMLElement {
+    /**
+     * Returns text.
+     *
+     * @returns Text.
+     */
+    get text(): string;
+    /**
+     * Sets text.
+     *
+     * @param text Text.
+     */
+    set text(text: string);
+    /**
+     * @override
+     */
+    get innerHTML(): string;
+    /**
+     * @override
+     */
+    set innerHTML(html: string);
+}
+//# sourceMappingURL=HTMLTitleElement.d.ts.map

frontend/node_modules/happy-dom/cjs/nodes/html-title-element/HTMLTitleElement.d.ts.map

@@ -0,0 +1 @@
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