feat: renderizar adjuntos multimedia en el chat (imagen, video, audio, archivo)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

resources/views/chat/show.blade.php

@@ -107,33 +107,50 @@ document.getElementById('chat-form').addEventListener('submit', function(e) {
     const data = new FormData(form);
 
     axios.post('{{ route("chat.send") }}', data, {
-    headers: {
-        'X-Socket-ID': window.Echo.socketId()
-    }
-})
-    .then(response => {
-        appendMessage({
-            body: response.data.body,
-            created_at: response.data.created_at,
-        }, true);
+        headers: { 'X-Socket-ID': window.Echo.socketId() }
+    }).then(response => {
+        appendMessage(response.data, true);
         scrollBottom();
         form.reset();
         document.getElementById('attachment-preview').textContent = '';
     });
 });
 
+function buildAttachmentHtml(msg, isMine) {
+    if (!msg.attachment) return '';
+    const url = '/storage/' + msg.attachment;
+    const linkClass = isMine ? 'text-white' : 'text-dark';
+    switch (msg.attachment_type) {
+        case 'image':
+            return `<img src="${url}" class="img-fluid rounded mt-1" style="max-width:240px; cursor:pointer"
+                        onclick="window.open('${url}','_blank')">`;
+        case 'video':
+            return `<video controls class="mt-1 rounded" style="max-width:240px">
+                        <source src="${url}">Tu navegador no soporta video.
+                    </video>`;
+        case 'audio':
+            return `<audio controls class="mt-1" style="max-width:240px">
+                        <source src="${url}">Tu navegador no soporta audio.
+                    </audio>`;
+        default:
+            return `<a href="${url}" target="_blank" class="btn btn-sm ${isMine ? 'btn-light' : 'btn-secondary'} mt-1">
+                        <i class="fas fa-file mr-1"></i>Ver archivo
+                    </a>`;
+    }
+}
+
 function appendMessage(msg, isMine) {
     const div = document.createElement('div');
     div.className = `d-flex mb-2 ${isMine ? 'justify-content-end' : 'justify-content-start'}`;
 
-    // formatear hora
-    const time = msg.created_at.length > 5
+    const time = typeof msg.created_at === 'string' && msg.created_at.length > 5
         ? new Date(msg.created_at).toLocaleTimeString('es-MX', {hour:'2-digit', minute:'2-digit'})
         : msg.created_at;
 
     div.innerHTML = `
         <div class="px-3 py-2 rounded ${isMine ? 'bg-primary text-white' : 'bg-light'}" style="max-width:65%">
             ${msg.body ? `<div>${msg.body}</div>` : ''}
+            ${buildAttachmentHtml(msg, isMine)}
             <div class="text-right mt-1" style="font-size:0.7rem; opacity:0.7">${time}</div>
         </div>`;
     chatMessages.appendChild(div);