feat: improve chat composer with file attachments and media previews

app/pages/reports/[id].vue

@@ -42,13 +42,13 @@ const selectedMediaIndex = ref(0)
 const isGalleryOpen = ref(false)
 
 // Invia messaggio
-const handleSendMessage = async () => {
-  if (!newMessage.value.trim()) return
+const handleSendMessage = async (msgText: string, files: File[]) => {
+  if (!msgText.trim() && files.length === 0) return
 
   isSubmittingMessage.value = true
   try {
-    await addMessage(reportId, { body: newMessage.value })
-    newMessage.value = ''
+    // Gestione mock di file, nella realtà si usa FormData o simle
+    await addMessage(reportId, { body: msgText })
     await refreshMessages()
   } catch (error) {
     console.error('Error sending message:', error)
@@ -221,7 +221,7 @@ const formatDate = (dateString: string): string => {
                 Chat ({{ messages.length }})
               </h6>
               <MessageList :messages="messages" />
-              <MessageComposer @send="(msg) => { newMessage = msg; handleSendMessage() }" />
+              <MessageComposer @send="handleSendMessage" />
             </div>
           </div>
         </div>