fix: Support location messages in Twilio WhatsApp integration (#11830)

Fixes location messages not appearing in conversations when sent via
Twilio. Location messages were being filtered out due to empty body
content and missing parameter handling.

![CleanShot 2025-06-27 at 20 48
12](https://github.com/user-attachments/assets/b5a75796-6937-49bc-b689-7d04f4ea5d09)

app/services/twilio/incoming_message_service.rb

@@ -17,6 +17,7 @@ class Twilio::IncomingMessageService
       source_id: params[:SmsSid]
     )
     attach_files
+    attach_location if location_message?
     @message.save!
   end
 
@@ -155,4 +156,17 @@ class Twilio::IncomingMessageService
     Rails.logger.info "Error downloading attachment from Twilio: #{e.message}: Skipping"
     nil
   end
+
+  def location_message?
+    params[:MessageType] == 'location' && params[:Latitude].present? && params[:Longitude].present?
+  end
+
+  def attach_location
+    @message.attachments.new(
+      account_id: @message.account_id,
+      file_type: :location,
+      coordinates_lat: params[:Latitude].to_f,
+      coordinates_long: params[:Longitude].to_f
+    )
+  end
 end