feat(ee): Add transcription support for audio messages (#11670)

<img width="419" alt="Screenshot 2025-06-03 at 4 25 37 PM"
src="https://github.com/user-attachments/assets/4b6ddd11-9b91-4981-a571-83746cc4d40b"
/>


Fixes https://github.com/chatwoot/chatwoot/issues/10182

---------

Co-authored-by: Sojan Jose <sojan@pepalo.com>

enterprise/app/jobs/captain/conversation/response_builder_job.rb

@@ -49,10 +49,24 @@ class Captain::Conversation::ResponseBuilderJob < ApplicationJob
 
   def message_content(message)
     return message.content if message.content.present?
+    return 'User has shared a message without content' unless message.attachments.any?
 
-    return 'User has shared an attachment' if message.attachments.any?
+    audio_transcriptions = extract_audio_transcriptions(message.attachments)
+    return audio_transcriptions if audio_transcriptions.present?
 
-    'User has shared a message without content'
+    'User has shared an attachment'
+  end
+
+  def extract_audio_transcriptions(attachments)
+    audio_attachments = attachments.where(file_type: :audio)
+    return '' if audio_attachments.blank?
+
+    transcriptions = ''
+    audio_attachments.each do |attachment|
+      result = Messages::AudioTranscriptionService.new(attachment).perform
+      transcriptions += result[:transcriptions] if result[:success]
+    end
+    transcriptions
   end
 
   def determine_role(message)

enterprise/app/jobs/messages/audio_transcription_job.rb

@@ -0,0 +1,13 @@
+class Messages::AudioTranscriptionJob < ApplicationJob
+  queue_as :low
+
+  def perform(attachment_id)
+    attachment = Attachment.find_by(id: attachment_id)
+    return if attachment.blank?
+
+    Messages::AudioTranscriptionService.new(attachment).perform
+  rescue StandardError => e
+    Rails.logger.error "Error in AudioTranscriptionJob: #{e.message}"
+    ChatwootExceptionTracker.new(e).capture_exception
+  end
+end