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/html-paragraph-element/HTMLParagraphElement.d.ts

@@ -0,0 +1,9 @@
+import HTMLElement from '../html-element/HTMLElement.js';
+/**
+ * HTMLParagraphElement
+ *
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/HTMLParagraphElement
+ */
+export default class HTMLParagraphElement extends HTMLElement {
+}
+//# sourceMappingURL=HTMLParagraphElement.d.ts.map

frontend/node_modules/happy-dom/lib/nodes/html-paragraph-element/HTMLParagraphElement.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"HTMLParagraphElement.d.ts","sourceRoot":"","sources":["../../../src/nodes/html-paragraph-element/HTMLParagraphElement.ts"],"names":[],"mappings":"AAAA,OAAO,WAAW,MAAM,gCAAgC,CAAC;AACzD;;;;GAIG;AACH,MAAM,CAAC,OAAO,OAAO,oBAAqB,SAAQ,WAAW;CAAG"}

frontend/node_modules/happy-dom/lib/nodes/html-paragraph-element/HTMLParagraphElement.js

@@ -0,0 +1,9 @@
+import HTMLElement from '../html-element/HTMLElement.js';
+/**
+ * HTMLParagraphElement
+ *
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/HTMLParagraphElement
+ */
+export default class HTMLParagraphElement extends HTMLElement {
+}
+//# sourceMappingURL=HTMLParagraphElement.js.map

frontend/node_modules/happy-dom/lib/nodes/html-paragraph-element/HTMLParagraphElement.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"HTMLParagraphElement.js","sourceRoot":"","sources":["../../../src/nodes/html-paragraph-element/HTMLParagraphElement.ts"],"names":[],"mappings":"AAAA,OAAO,WAAW,MAAM,gCAAgC,CAAC;AACzD;;;;GAIG;AACH,MAAM,CAAC,OAAO,OAAO,oBAAqB,SAAQ,WAAW;CAAG"}