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/@rollup/rollup-win32-x64-msvc/README.md

@@ -0,0 +1,3 @@
+# `@rollup/rollup-win32-x64-msvc`
+
+This is the **x86_64-pc-windows-msvc** binary for `rollup`

frontend/node_modules/@rollup/rollup-win32-x64-msvc/package.json

@@ -0,0 +1,22 @@
+{
+  "name": "@rollup/rollup-win32-x64-msvc",
+  "version": "4.57.1",
+  "os": [
+    "win32"
+  ],
+  "cpu": [
+    "x64"
+  ],
+  "files": [
+    "rollup.win32-x64-msvc.node"
+  ],
+  "description": "Native bindings for Rollup",
+  "author": "Lukas Taegert-Atkinson",
+  "homepage": "https://rollupjs.org/",
+  "license": "MIT",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/rollup/rollup.git"
+  },
+  "main": "./rollup.win32-x64-msvc.node"
+}