Fix chat message and photo sending

- Remove broken transformRequest that crashed with Axios 1.x (headers.post undefined)
- Guard window.Echo.socketId() to avoid TypeError before socket connects
- Wrap broadcast() in try/catch so Reverb downtime does not cause 500 errors

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

resources/views/chat/show.blade.php

@@ -156,14 +156,12 @@ if (chatForm) {
         }
         const data = new FormData(form);
 
-        axios.post('{{ route("chat.send") }}', data, {
-            headers: { 'X-Socket-ID': window.Echo.socketId() },
-            transformRequest: [(formData, headers) => {
-                delete headers.post['Content-Type'];
-                delete headers['Content-Type'];
-                return formData;
-            }]
-        }).then(response => {
+        const socketId = (window.Echo && window.Echo.socketId) ? window.Echo.socketId() : null;
+        const reqHeaders = {};
+        if (socketId) reqHeaders['X-Socket-ID'] = socketId;
+
+        axios.post('{{ route("chat.send") }}', data, { headers: reqHeaders })
+        .then(response => {
             appendMessage(response.data, true);
             scrollBottom();
             form.reset();