feat: Mini-Cloud Plattform - komplette Implementierung Phase 0-8

Selbstgehostete Web-Cloud mit Dateiverwaltung, Kalender, Kontakte,
Email-Webclient, Office-Viewer und Passwort-Manager.

Backend (Flask/Python):
- JWT-Auth mit Access/Refresh Tokens, Benutzerverwaltung
- Dateien: Upload/Download, Ordner, Berechtigungen, Share-Links
- Kalender: CRUD, Teilen, iCal-Export, CalDAV well-known URLs
- Kontakte: Adressbuecher, vCard-Export, Teilen
- Email: IMAP/SMTP-Proxy, Multi-Account
- Office-Viewer: DOCX/XLSX/PPTX/PDF Vorschau
- Passwort-Manager: AES-256-GCM clientseitig, KeePass-Import
- Sync-API fuer Desktop/Mobile-Clients
- SQLite mit WAL-Modus

Frontend (Vue 3 + PrimeVue):
- Datei-Explorer mit Breadcrumbs und Share-Dialogen
- Monatskalender mit Event-Verwaltung
- Kontaktliste mit Adressbuch-Sidebar
- Email-Client mit 3-Spalten-Layout
- Passwort-Manager mit TOTP und Passwort-Generator
- Admin-Panel, Settings, oeffentliche Share-Seite

Docker: Multi-Stage Build, Bind Mounts (keine Volumes)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontend/src/router/index.js

@@ -0,0 +1,100 @@
+import { createRouter, createWebHistory } from 'vue-router'
+import { useAuthStore } from '../stores/auth'
+
+const routes = [
+  {
+    path: '/login',
+    name: 'Login',
+    component: () => import('../views/LoginView.vue'),
+    meta: { guest: true },
+  },
+  {
+    path: '/register',
+    name: 'Register',
+    component: () => import('../views/RegisterView.vue'),
+    meta: { guest: true },
+  },
+  {
+    path: '/',
+    component: () => import('../views/AppLayout.vue'),
+    meta: { requiresAuth: true },
+    children: [
+      {
+        path: '',
+        redirect: '/files',
+      },
+      {
+        path: 'files/:folderId?',
+        name: 'Files',
+        component: () => import('../views/FilesView.vue'),
+      },
+      {
+        path: 'calendar',
+        name: 'Calendar',
+        component: () => import('../views/CalendarView.vue'),
+      },
+      {
+        path: 'contacts',
+        name: 'Contacts',
+        component: () => import('../views/ContactsView.vue'),
+      },
+      {
+        path: 'email',
+        name: 'Email',
+        component: () => import('../views/EmailView.vue'),
+      },
+      {
+        path: 'passwords',
+        name: 'Passwords',
+        component: () => import('../views/PasswordsView.vue'),
+      },
+      {
+        path: 'admin',
+        name: 'Admin',
+        component: () => import('../views/AdminView.vue'),
+        meta: { requiresAdmin: true },
+      },
+      {
+        path: 'settings',
+        name: 'Settings',
+        component: () => import('../views/SettingsView.vue'),
+      },
+    ],
+  },
+  {
+    path: '/share/:token',
+    name: 'Share',
+    component: () => import('../views/ShareView.vue'),
+  },
+]
+
+const router = createRouter({
+  history: createWebHistory(),
+  routes,
+})
+
+router.beforeEach(async (to, from, next) => {
+  const auth = useAuthStore()
+
+  if (to.meta.requiresAuth && !auth.isAuthenticated) {
+    // Try to refresh token
+    try {
+      await auth.refreshToken()
+      await auth.fetchMe()
+    } catch {
+      return next('/login')
+    }
+  }
+
+  if (to.meta.guest && auth.isAuthenticated) {
+    return next('/')
+  }
+
+  if (to.meta.requiresAdmin && !auth.isAdmin) {
+    return next('/')
+  }
+
+  next()
+})
+
+export default router