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-video-element/HTMLVideoElement.cjs

@@ -0,0 +1,17 @@
+"use strict";
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+const HTMLMediaElement_js_1 = __importDefault(require("../html-media-element/HTMLMediaElement.cjs"));
+/**
+ * HTML Video Element.
+ *
+ * Reference:
+ * https://developer.mozilla.org/en-US/docs/Web/API/HTMLVideoElement.
+ *
+ */
+class HTMLVideoElement extends HTMLMediaElement_js_1.default {
+}
+exports.default = HTMLVideoElement;
+//# sourceMappingURL=HTMLVideoElement.cjs.map

frontend/node_modules/happy-dom/cjs/nodes/html-video-element/HTMLVideoElement.cjs.map

@@ -0,0 +1 @@
+{"version":3,"file":"HTMLVideoElement.cjs","sourceRoot":"","sources":["../../../src/nodes/html-video-element/HTMLVideoElement.ts"],"names":[],"mappings":";;;;;AAAA,oGAAyE;AAEzE;;;;;;GAMG;AACH,MAAqB,gBAAiB,SAAQ,6BAAgB;CAAG;AAAjE,mCAAiE"}

frontend/node_modules/happy-dom/cjs/nodes/html-video-element/HTMLVideoElement.d.ts

@@ -0,0 +1,11 @@
+import HTMLMediaElement from '../html-media-element/HTMLMediaElement.cjs';
+/**
+ * HTML Video Element.
+ *
+ * Reference:
+ * https://developer.mozilla.org/en-US/docs/Web/API/HTMLVideoElement.
+ *
+ */
+export default class HTMLVideoElement extends HTMLMediaElement {
+}
+//# sourceMappingURL=HTMLVideoElement.d.ts.map

frontend/node_modules/happy-dom/cjs/nodes/html-video-element/HTMLVideoElement.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"HTMLVideoElement.d.ts","sourceRoot":"","sources":["../../../src/nodes/html-video-element/HTMLVideoElement.ts"],"names":[],"mappings":"AAAA,OAAO,gBAAgB,MAAM,2CAA2C,CAAC;AAEzE;;;;;;GAMG;AACH,MAAM,CAAC,OAAO,OAAO,gBAAiB,SAAQ,gBAAgB;CAAG"}