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/daisyui/utilities/glass/index.js

@@ -0,0 +1,7 @@
+import glass from './object.js';
+import { addPrefix } from '../../functions/addPrefix.js';
+
+export default ({ addUtilities, prefix = '' }) => {
+  const prefixedglass = addPrefix(glass, prefix);
+  addUtilities({ ...prefixedglass });
+};

frontend/node_modules/daisyui/utilities/glass/object.js

@@ -0,0 +1 @@
+export default {".glass":{"border":"none","backdrop-filter":"blur(var(--glass-blur, 40px))","background-color":"#0000","background-image":"linear-gradient( 135deg, oklch(100% 0 0 / var(--glass-opacity, 30%)) 0%, oklch(0% 0 0 / 0%) 100% ), linear-gradient( var(--glass-reflect-degree, 100deg), oklch(100% 0 0 / var(--glass-reflect-opacity, 5%)) 25%, oklch(0% 0 0 / 0%) 25% )","box-shadow":"0 0 0 1px oklch(100% 0 0 / var(--glass-border-opacity, 20%)) inset, 0 0 0 2px oklch(0% 0 0 / 5%)","text-shadow":"0 1px oklch(0% 0 0 / var(--glass-text-shadow-opacity, 5%))"}};