feat: Add sender details and message create date in the attachment API (#7308)

app/views/api/v1/accounts/conversations/attachments.json.jbuilder

@@ -1 +1,10 @@
-json.payload @attachments.map(&:push_event_data)
+json.payload @attachments do |attachment|
+  json.message_id attachment.push_event_data[:message_id]
+  json.thumb_url attachment.push_event_data[:thumb_url]
+  json.data_url attachment.push_event_data[:data_url]
+  json.file_size attachment.push_event_data[:file_size]
+  json.file_type attachment.push_event_data[:file_type]
+  json.extension attachment.push_event_data[:extension]
+  json.created_at attachment.message.created_at.to_i
+  json.sender attachment.message.sender.push_event_data if attachment.message.sender
+end

spec/controllers/api/v1/accounts/conversations_controller_spec.rb

@@ -753,6 +753,7 @@ RSpec.describe 'Conversations API', type: :request do
         expect(response).to have_http_status(:success)
         response_body = response.parsed_body
         expect(response_body['payload'].first['file_type']).to eq('image')
+        expect(response_body['payload'].first['sender']['id']).to eq(conversation.messages.last.sender.id)
       end
 
       it 'return the attachments if you are an agent with access to inbox' do