feat: add optional reply address to communication threads and enhance email transport status handling

frontend/src/views/ClubCommunicationView.vue

@@ -211,6 +211,7 @@
               <h3>{{ threadForm.id ? 'Vorgang bearbeiten' : 'Neuer Vorgang' }}</h3>
             </div>
             <p v-if="!canEdit" class="state-banner">Lesemodus aktiv. Vorgänge lassen sich prüfen, aber nicht ändern.</p>
+            <p v-if="transport && !transport.configured" class="state-banner state-banner-error">{{ transport.message }}</p>
 
             <form class="thread-form" @submit.prevent="saveThread">
               <div class="form-grid">
@@ -238,6 +239,19 @@
                 <input v-model.trim="threadForm.subject" type="text" :disabled="!canEdit" required />
               </label>
 
+              <label>
+                <span>Antwortadresse (optional)</span>
+                <input v-model.trim="threadForm.replyTo" type="email" :disabled="!canEdit" placeholder="vorstand@verein.de" />
+              </label>
+
+              <label>
+                <span>Dokumentanhänge</span>
+                <select v-model="threadForm.attachmentDocumentIds" multiple :disabled="!canEdit || availableDocuments.length === 0">
+                  <option v-for="document in availableDocuments" :key="document.id" :value="document.id">{{ document.title }}</option>
+                </select>
+                <small v-if="availableDocuments.length === 0">Keine aktiven Vereinsdokumente verfügbar.</small>
+              </label>
+
               <div v-if="threadForm.threadType === 'direct'">
                 <label>
                   <span>Empfänger</span>
@@ -546,6 +560,8 @@ function normalizeThread(thread = {}) {
     id: Number(thread.id),
     threadType: thread.threadType || thread.thread_type || 'direct',
     subject: thread.subject || '',
+    replyTo: thread.replyTo || thread.reply_to || '',
+    attachments: Array.isArray(thread.attachments) ? thread.attachments : [],
     status: thread.status || 'draft',
     recipientMemberId: Number(thread.recipientMemberId || thread.recipient_member_id || 0) || null,
     distributionGroupId: Number(thread.distributionGroupId || thread.distribution_group_id || 0) || null,
@@ -608,6 +624,8 @@ function createEmptyThreadForm() {
     id: null,
     threadType: 'direct',
     subject: '',
+    replyTo: '',
+    attachmentDocumentIds: [],
     status: 'draft',
     recipientMemberId: '',
     distributionGroupId: '',
@@ -679,6 +697,8 @@ export default {
       groups: [],
       members: [],
       templates: [],
+      availableDocuments: [],
+      transport: null,
       selectedThreadId: null,
       selectedGroupId: null,
       selectedTemplateId: null,
@@ -772,6 +792,8 @@ export default {
         id: thread.id,
         threadType: thread.threadType,
         subject: thread.subject,
+        replyTo: thread.replyTo || '',
+        attachmentDocumentIds: (thread.attachments || []).map((attachment) => Number(attachment.id)),
         status: thread.status,
         recipientMemberId: thread.recipientMemberId || '',
         distributionGroupId: thread.distributionGroupId || '',
@@ -811,6 +833,8 @@ export default {
       this.groups = [];
       this.members = [];
       this.templates = [];
+      this.availableDocuments = [];
+      this.transport = null;
       this.selectedThreadId = null;
       this.selectedGroupId = null;
       this.selectedTemplateId = null;
@@ -941,6 +965,8 @@ export default {
         this.groups = Array.isArray(response.data?.groups) ? response.data.groups.map(normalizeGroup) : [];
         this.members = Array.isArray(response.data?.members) ? response.data.members.map(normalizeMember) : [];
         this.templates = Array.isArray(response.data?.templates) ? response.data.templates.map(normalizeTemplate) : [];
+        this.availableDocuments = Array.isArray(response.data?.availableDocuments) ? response.data.availableDocuments : [];
+        this.transport = response.data?.transport || null;
         if (this.selectedThreadId && !this.threads.some((thread) => thread.id === this.selectedThreadId)) {
           this.selectedThreadId = null;
         }