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-opt-group-element/HTMLOptGroupElement.cjs

@@ -0,0 +1,58 @@
+"use strict";
+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"));
+/**
+ * HTML Opt Group Element.
+ *
+ * Reference:
+ * https://developer.mozilla.org/en-US/docs/Web/API/HTMLOptGroupElement
+ */
+class HTMLOptGroupElement extends HTMLElement_js_1.default {
+    /**
+     * Returns label.
+     *
+     * @returns Label.
+     */
+    get label() {
+        return this.getAttribute('label') || '';
+    }
+    /**
+     * Sets label.
+     *
+     * @param label Label.
+     */
+    set label(label) {
+        if (!label) {
+            this.removeAttribute('label');
+        }
+        else {
+            this.setAttribute('label', label);
+        }
+    }
+    /**
+     * Returns disabled.
+     *
+     * @returns Disabled.
+     */
+    get disabled() {
+        return this.getAttribute('disabled') !== null;
+    }
+    /**
+     * Sets disabled.
+     *
+     * @param disabled Disabled.
+     */
+    set disabled(disabled) {
+        if (!disabled) {
+            this.removeAttribute('disabled');
+        }
+        else {
+            this.setAttribute('disabled', '');
+        }
+    }
+}
+exports.default = HTMLOptGroupElement;
+//# sourceMappingURL=HTMLOptGroupElement.cjs.map

frontend/node_modules/happy-dom/cjs/nodes/html-opt-group-element/HTMLOptGroupElement.cjs.map

@@ -0,0 +1 @@
+{"version":3,"file":"HTMLOptGroupElement.cjs","sourceRoot":"","sources":["../../../src/nodes/html-opt-group-element/HTMLOptGroupElement.ts"],"names":[],"mappings":";;;;;AAAA,oFAAyD;AAEzD;;;;;GAKG;AACH,MAAqB,mBAAoB,SAAQ,wBAAW;IAC3D;;;;OAIG;IACH,IAAW,KAAK;QACf,OAAO,IAAI,CAAC,YAAY,CAAC,OAAO,CAAC,IAAI,EAAE,CAAC;IACzC,CAAC;IAED;;;;OAIG;IACH,IAAW,KAAK,CAAC,KAAa;QAC7B,IAAI,CAAC,KAAK,EAAE,CAAC;YACZ,IAAI,CAAC,eAAe,CAAC,OAAO,CAAC,CAAC;QAC/B,CAAC;aAAM,CAAC;YACP,IAAI,CAAC,YAAY,CAAC,OAAO,EAAE,KAAK,CAAC,CAAC;QACnC,CAAC;IACF,CAAC;IAED;;;;OAIG;IACH,IAAW,QAAQ;QAClB,OAAO,IAAI,CAAC,YAAY,CAAC,UAAU,CAAC,KAAK,IAAI,CAAC;IAC/C,CAAC;IAED;;;;OAIG;IACH,IAAW,QAAQ,CAAC,QAAiB;QACpC,IAAI,CAAC,QAAQ,EAAE,CAAC;YACf,IAAI,CAAC,eAAe,CAAC,UAAU,CAAC,CAAC;QAClC,CAAC;aAAM,CAAC;YACP,IAAI,CAAC,YAAY,CAAC,UAAU,EAAE,EAAE,CAAC,CAAC;QACnC,CAAC;IACF,CAAC;CACD;AA5CD,sCA4CC"}

frontend/node_modules/happy-dom/cjs/nodes/html-opt-group-element/HTMLOptGroupElement.d.ts

@@ -0,0 +1,34 @@
+import HTMLElement from '../html-element/HTMLElement.cjs';
+/**
+ * HTML Opt Group Element.
+ *
+ * Reference:
+ * https://developer.mozilla.org/en-US/docs/Web/API/HTMLOptGroupElement
+ */
+export default class HTMLOptGroupElement extends HTMLElement {
+    /**
+     * Returns label.
+     *
+     * @returns Label.
+     */
+    get label(): string;
+    /**
+     * Sets label.
+     *
+     * @param label Label.
+     */
+    set label(label: string);
+    /**
+     * Returns disabled.
+     *
+     * @returns Disabled.
+     */
+    get disabled(): boolean;
+    /**
+     * Sets disabled.
+     *
+     * @param disabled Disabled.
+     */
+    set disabled(disabled: boolean);
+}
+//# sourceMappingURL=HTMLOptGroupElement.d.ts.map

frontend/node_modules/happy-dom/cjs/nodes/html-opt-group-element/HTMLOptGroupElement.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"HTMLOptGroupElement.d.ts","sourceRoot":"","sources":["../../../src/nodes/html-opt-group-element/HTMLOptGroupElement.ts"],"names":[],"mappings":"AAAA,OAAO,WAAW,MAAM,gCAAgC,CAAC;AAEzD;;;;;GAKG;AACH,MAAM,CAAC,OAAO,OAAO,mBAAoB,SAAQ,WAAW;IAC3D;;;;OAIG;IACH,IAAW,KAAK,IAAI,MAAM,CAEzB;IAED;;;;OAIG;IACH,IAAW,KAAK,CAAC,KAAK,EAAE,MAAM,EAM7B;IAED;;;;OAIG;IACH,IAAW,QAAQ,IAAI,OAAO,CAE7B;IAED;;;;OAIG;IACH,IAAW,QAAQ,CAAC,QAAQ,EAAE,OAAO,EAMpC;CACD"}