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/url/URL.d.ts

@@ -0,0 +1,16 @@
+import { URL as NodeJSURL } from 'url';
+import { Blob as NodeJSBlob } from 'buffer';
+import Blob from '../file/Blob.js';
+/**
+ * URL.
+ */
+export default class URL extends NodeJSURL {
+    /**
+     * Creates a string containing a URL representing the object given in the parameter.
+     *
+     * @param object Object.
+     * @returns URL.
+     */
+    static createObjectURL(object: NodeJSBlob | Blob): string;
+}
+//# sourceMappingURL=URL.d.ts.map

frontend/node_modules/happy-dom/lib/url/URL.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"URL.d.ts","sourceRoot":"","sources":["../../src/url/URL.ts"],"names":[],"mappings":"AAAA,OAAO,EAAE,GAAG,IAAI,SAAS,EAAE,MAAM,KAAK,CAAC;AAEvC,OAAO,EAAE,IAAI,IAAI,UAAU,EAAE,MAAM,QAAQ,CAAC;AAC5C,OAAO,IAAI,MAAM,iBAAiB,CAAC;AAEnC;;GAEG;AACH,MAAM,CAAC,OAAO,OAAO,GAAI,SAAQ,SAAS;IACzC;;;;;OAKG;WACoB,eAAe,CAAC,MAAM,EAAE,UAAU,GAAG,IAAI,GAAG,MAAM;CAOzE"}

frontend/node_modules/happy-dom/lib/url/URL.js

@@ -0,0 +1,23 @@
+import { URL as NodeJSURL } from 'url';
+import * as PropertySymbol from '../PropertySymbol.js';
+import { Blob as NodeJSBlob } from 'buffer';
+import Blob from '../file/Blob.js';
+/**
+ * URL.
+ */
+export default class URL extends NodeJSURL {
+    /**
+     * Creates a string containing a URL representing the object given in the parameter.
+     *
+     * @param object Object.
+     * @returns URL.
+     */
+    static createObjectURL(object) {
+        if (object instanceof Blob) {
+            const blob = new NodeJSBlob([object[PropertySymbol.buffer]], { type: object.type });
+            return super.createObjectURL(blob);
+        }
+        return super.createObjectURL(object);
+    }
+}
+//# sourceMappingURL=URL.js.map

frontend/node_modules/happy-dom/lib/url/URL.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"URL.js","sourceRoot":"","sources":["../../src/url/URL.ts"],"names":[],"mappings":"AAAA,OAAO,EAAE,GAAG,IAAI,SAAS,EAAE,MAAM,KAAK,CAAC;AACvC,OAAO,KAAK,cAAc,MAAM,sBAAsB,CAAC;AACvD,OAAO,EAAE,IAAI,IAAI,UAAU,EAAE,MAAM,QAAQ,CAAC;AAC5C,OAAO,IAAI,MAAM,iBAAiB,CAAC;AAEnC;;GAEG;AACH,MAAM,CAAC,OAAO,OAAO,GAAI,SAAQ,SAAS;IACzC;;;;;OAKG;IACI,MAAM,CAAU,eAAe,CAAC,MAAyB;QAC/D,IAAI,MAAM,YAAY,IAAI,EAAE,CAAC;YAC5B,MAAM,IAAI,GAAG,IAAI,UAAU,CAAC,CAAC,MAAM,CAAC,cAAc,CAAC,MAAM,CAAC,CAAC,EAAE,EAAE,IAAI,EAAE,MAAM,CAAC,IAAI,EAAE,CAAC,CAAC;YACpF,OAAO,KAAK,CAAC,eAAe,CAAC,IAAI,CAAC,CAAC;QACpC,CAAC;QACD,OAAO,KAAK,CAAC,eAAe,CAAC,MAAM,CAAC,CAAC;IACtC,CAAC;CACD"}