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/theme/emerald/index.js

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

frontend/node_modules/daisyui/theme/emerald/object.js

@@ -0,0 +1 @@
+export default {"color-scheme":"light","--color-base-100":"oklch(100% 0 0)","--color-base-200":"oklch(93% 0 0)","--color-base-300":"oklch(86% 0 0)","--color-base-content":"oklch(35.519% 0.032 262.988)","--color-primary":"oklch(76.662% 0.135 153.45)","--color-primary-content":"oklch(33.387% 0.04 162.24)","--color-secondary":"oklch(61.302% 0.202 261.294)","--color-secondary-content":"oklch(100% 0 0)","--color-accent":"oklch(72.772% 0.149 33.2)","--color-accent-content":"oklch(0% 0 0)","--color-neutral":"oklch(35.519% 0.032 262.988)","--color-neutral-content":"oklch(98.462% 0.001 247.838)","--color-info":"oklch(72.06% 0.191 231.6)","--color-info-content":"oklch(0% 0 0)","--color-success":"oklch(64.8% 0.15 160)","--color-success-content":"oklch(0% 0 0)","--color-warning":"oklch(84.71% 0.199 83.87)","--color-warning-content":"oklch(0% 0 0)","--color-error":"oklch(71.76% 0.221 22.18)","--color-error-content":"oklch(0% 0 0)","--radius-selector":"1rem","--radius-field":"0.5rem","--radius-box":"1rem","--size-selector":"0.25rem","--size-field":"0.25rem","--border":"1px","--depth":"0","--noise":"0"};