feat: Add subscription UI components

- Add Subscription interface to auth store
- Add subscription computed properties (isTrialActive, isExpired, etc.)
- Add SubscriptionBanner component (trial warning, expired notice)
- Add SubscriptionExpiredView (blocked access screen)
- Update AppLayout to show banner
- Update router to redirect expired subscriptions

src/components/SubscriptionBanner.vue

@@ -0,0 +1,58 @@
+<script setup lang="ts">
+import { computed } from 'vue'
+import { useAuthStore } from '@/stores/auth'
+
+const authStore = useAuthStore()
+
+const bannerType = computed(() => {
+  if (authStore.isSubscriptionExpired) return 'expired'
+  if (authStore.showTrialWarning) return 'trial-warning'
+  if (authStore.isTrialActive) return 'trial'
+  return null
+})
+
+const bannerClass = computed(() => {
+  switch (bannerType.value) {
+    case 'expired': return 'bg-red-600 text-white'
+    case 'trial-warning': return 'bg-yellow-500 text-yellow-900'
+    case 'trial': return 'bg-blue-500 text-white'
+    default: return ''
+  }
+})
+
+const message = computed(() => {
+  const days = authStore.trialDaysRemaining
+  
+  switch (bannerType.value) {
+    case 'expired':
+      return authStore.subscription?.status === 'paused' 
+        ? '⚠️ Ihr Account wurde pausiert. Bitte kontaktieren Sie den Support.'
+        : '⚠️ Ihre Testphase ist abgelaufen. Bitte wählen Sie ein Abonnement.'
+    case 'trial-warning':
+      return `⏰ Nur noch ${days} Tag${days === 1 ? '' : 'e'} in der Testphase! Jetzt Abo wählen.`
+    case 'trial':
+      return `🎉 Testphase: Noch ${days} Tag${days === 1 ? '' : 'e'} kostenlos testen`
+    default:
+      return ''
+  }
+})
+
+const showBanner = computed(() => bannerType.value !== null)
+</script>
+
+<template>
+  <div 
+    v-if="showBanner" 
+    :class="['px-4 py-2 text-center text-sm font-medium', bannerClass]"
+  >
+    {{ message }}
+    <a 
+      v-if="bannerType === 'expired' || bannerType === 'trial-warning'"
+      href="https://secu.kronos-soulution.de/#preise" 
+      target="_blank"
+      class="ml-2 underline font-bold hover:no-underline"
+    >
+      Preise ansehen →
+    </a>
+  </div>
+</template>

src/components/layout/AppLayout.vue

@@ -4,6 +4,7 @@ import { useRouter } from 'vue-router'
 import { useAuthStore } from '@/stores/auth'
 import AppSidebar from './AppSidebar.vue'
 import AppHeader from './AppHeader.vue'
+import SubscriptionBanner from '@/components/SubscriptionBanner.vue'
 
 const authStore = useAuthStore()
 const router = useRouter()
@@ -17,6 +18,9 @@ async function handleLogout() {
 
 <template>
   <div class="min-h-screen bg-gray-50 dark:bg-gray-900">
+    <!-- Subscription Banner -->
+    <SubscriptionBanner />
+    
     <!-- Mobile sidebar backdrop -->
     <div
       v-if="sidebarOpen"

src/router/index.ts

@@ -16,11 +16,17 @@ const router = createRouter({
       component: () => import('@/views/RegisterOrgView.vue'),
       meta: { guest: true }
     },
+    {
+      path: '/subscription-expired',
+      name: 'subscription-expired',
+      component: () => import('@/views/SubscriptionExpiredView.vue'),
+      meta: { requiresAuth: true, skipSubscriptionCheck: true }
+    },
     {
       path: '/admin',
       name: 'admin',
       component: () => import('@/views/AdminDashboardView.vue'),
-      meta: { requiresAuth: true }
+      meta: { requiresAuth: true, skipSubscriptionCheck: true }
     },
     {
       path: '/',
@@ -143,12 +149,16 @@ router.beforeEach(async (to, _from, next) => {
   
   const requiresAuth = to.matched.some(record => record.meta.requiresAuth)
   const isGuest = to.matched.some(record => record.meta.guest)
+  const skipSubscriptionCheck = to.matched.some(record => record.meta.skipSubscriptionCheck)
   const requiredRoles = to.meta.roles as string[] | undefined
   
   if (requiresAuth && !authStore.isAuthenticated) {
     next({ name: 'login', query: { redirect: to.fullPath } })
   } else if (isGuest && authStore.isAuthenticated) {
     next({ name: 'dashboard' })
+  } else if (requiresAuth && authStore.isSubscriptionExpired && !skipSubscriptionCheck) {
+    // Redirect to subscription expired page if subscription is not active
+    next({ name: 'subscription-expired' })
   } else if (requiredRoles && !requiredRoles.includes(authStore.user?.role || '')) {
     next({ name: 'dashboard' })
   } else {

src/stores/auth.ts

@@ -19,9 +19,18 @@ export interface Organization {
   settings?: Record<string, unknown>
 }
 
+export interface Subscription {
+  status: 'trial' | 'active' | 'paused' | 'expired' | 'cancelled'
+  plan: 'starter' | 'business' | 'enterprise'
+  trialEndsAt: string | null
+  subscriptionEndsAt: string | null
+  daysRemaining: number | null
+}
+
 export const useAuthStore = defineStore('auth', () => {
   const user = ref<User | null>(null)
   const organization = ref<Organization | null>(null)
+  const subscription = ref<Subscription | null>(null)
   const accessToken = ref<string | null>(localStorage.getItem('accessToken'))
   const refreshToken = ref<string | null>(localStorage.getItem('refreshToken'))
   const orgSlug = ref<string>(localStorage.getItem('orgSlug') || '')
@@ -36,6 +45,17 @@ export const useAuthStore = defineStore('auth', () => {
   const fullName = computed(() => user.value ? `${user.value.first_name} ${user.value.last_name}` : '')
   const orgName = computed(() => organization.value?.name || '')
   const orgLogo = computed(() => organization.value?.logo_url || null)
+  
+  // Subscription computed
+  const isTrialActive = computed(() => subscription.value?.status === 'trial' && (subscription.value?.daysRemaining ?? 0) > 0)
+  const isSubscriptionActive = computed(() => subscription.value?.status === 'active' || isTrialActive.value)
+  const isSubscriptionExpired = computed(() => 
+    subscription.value?.status === 'expired' || 
+    subscription.value?.status === 'paused' ||
+    (subscription.value?.status === 'trial' && (subscription.value?.daysRemaining ?? 0) <= 0)
+  )
+  const trialDaysRemaining = computed(() => subscription.value?.daysRemaining ?? null)
+  const showTrialWarning = computed(() => isTrialActive.value && (trialDaysRemaining.value ?? 0) <= 7)
 
   function setTokens(access: string, refresh: string) {
     accessToken.value = access
@@ -52,6 +72,7 @@ export const useAuthStore = defineStore('auth', () => {
   function clearAuth() {
     user.value = null
     organization.value = null
+    subscription.value = null
     accessToken.value = null
     refreshToken.value = null
     localStorage.removeItem('accessToken')
@@ -97,6 +118,7 @@ export const useAuthStore = defineStore('auth', () => {
     try {
       const response = await api.get('/auth/me')
       user.value = response.data.user
+      subscription.value = response.data.subscription
       // Also fetch organization info
       await fetchOrganization()
     } catch {
@@ -137,6 +159,7 @@ export const useAuthStore = defineStore('auth', () => {
   return {
     user,
     organization,
+    subscription,
     accessToken,
     refreshToken,
     orgSlug,
@@ -150,6 +173,11 @@ export const useAuthStore = defineStore('auth', () => {
     fullName,
     orgName,
     orgLogo,
+    isTrialActive,
+    isSubscriptionActive,
+    isSubscriptionExpired,
+    trialDaysRemaining,
+    showTrialWarning,
     login,
     register,
     logout,

src/views/SubscriptionExpiredView.vue

@@ -0,0 +1,63 @@
+<script setup lang="ts">
+import { useAuthStore } from '@/stores/auth'
+import { useRouter } from 'vue-router'
+
+const authStore = useAuthStore()
+const router = useRouter()
+
+const isPaused = authStore.subscription?.status === 'paused'
+
+async function logout() {
+  await authStore.logout()
+  router.push('/login')
+}
+</script>
+
+<template>
+  <div class="min-h-screen bg-gray-100 flex items-center justify-center p-4">
+    <div class="max-w-md w-full bg-white rounded-2xl shadow-xl p-8 text-center">
+      <div class="text-6xl mb-6">{{ isPaused ? '⏸️' : '⏰' }}</div>
+      
+      <h1 class="text-2xl font-bold text-gray-900 mb-4">
+        {{ isPaused ? 'Account pausiert' : 'Testphase beendet' }}
+      </h1>
+      
+      <p class="text-gray-600 mb-6">
+        <template v-if="isPaused">
+          Ihr Account wurde vorübergehend pausiert. Dies kann an einer ausstehenden Zahlung liegen.
+          Bitte kontaktieren Sie unseren Support.
+        </template>
+        <template v-else>
+          Ihre 14-tägige Testphase ist leider abgelaufen. 
+          Um SeCu weiter zu nutzen, wählen Sie bitte ein passendes Abonnement.
+        </template>
+      </p>
+
+      <div class="space-y-3">
+        <a 
+          href="https://secu.kronos-soulution.de/#preise"
+          target="_blank"
+          class="block w-full bg-purple-600 text-white py-3 px-6 rounded-lg font-semibold hover:bg-purple-700 transition"
+        >
+          {{ isPaused ? '📞 Support kontaktieren' : '💳 Abonnement wählen' }}
+        </a>
+        
+        <button
+          @click="logout"
+          class="block w-full bg-gray-200 text-gray-700 py-3 px-6 rounded-lg font-semibold hover:bg-gray-300 transition"
+        >
+          🚪 Ausloggen
+        </button>
+      </div>
+
+      <div class="mt-8 pt-6 border-t border-gray-200">
+        <p class="text-sm text-gray-500">
+          Fragen? Kontaktieren Sie uns:
+        </p>
+        <a href="mailto:support@kronos-soulution.de" class="text-purple-600 font-medium hover:underline">
+          support@kronos-soulution.de
+        </a>
+      </div>
+    </div>
+  </div>
+</template>