Add filter option for members with hall key in member management UI. Update member listing logic to reflect filtered results based on hall key status.

components/cms/CmsMitglieder.vue

@@ -53,6 +53,17 @@
       </div>
     </div>
 
+    <div class="mb-4 flex items-center">
+      <label class="inline-flex items-center gap-2 text-sm text-gray-700">
+        <input
+          v-model="filterHasHallKey"
+          type="checkbox"
+          class="h-4 w-4 text-primary-600 focus:ring-primary-500 border-gray-300 rounded"
+        >
+        Nur mit Hallenschlüssel
+      </label>
+    </div>
+
     <!-- Loading State -->
     <div
       v-if="isLoading"
@@ -101,7 +112,7 @@
           </thead>
           <tbody class="bg-white divide-y divide-gray-200">
             <tr
-              v-for="member in members"
+              v-for="member in filteredMembers"
               :key="member.id"
               class="hover:bg-gray-50"
             >
@@ -239,7 +250,7 @@
       </div>
       
       <div
-        v-if="members.length === 0"
+        v-if="filteredMembers.length === 0"
         class="text-center py-12 text-gray-500"
       >
         Keine Mitglieder gefunden.
@@ -252,7 +263,7 @@
       class="space-y-4"
     >
       <div
-        v-for="member in members"
+        v-for="member in filteredMembers"
         :key="member.id"
         class="bg-white p-6 rounded-xl shadow-lg border border-gray-100"
       >
@@ -408,7 +419,7 @@
       </div>
 
       <div
-        v-if="members.length === 0"
+        v-if="filteredMembers.length === 0"
         class="text-center py-12 text-gray-500"
       >
         Keine Mitglieder gefunden.
@@ -769,6 +780,7 @@ const showModal = ref(false)
 const editingMember = ref(null)
 const errorMessage = ref('')
 const viewMode = ref('cards')
+const filterHasHallKey = ref(false)
 
 // Bulk import state
 const showBulkImportModal = ref(false)
@@ -799,6 +811,11 @@ const canViewContactData = computed(() => {
   return authStore.hasRole('vorstand')
 })
 
+const filteredMembers = computed(() => {
+  if (!filterHasHallKey.value) return members.value
+  return members.value.filter(member => member.hasHallKey)
+})
+
 const loadMembers = async () => {
   isLoading.value = true
   try {