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>

app/models/attachment.rb

@@ -44,11 +44,8 @@ class Attachment < ApplicationRecord
 
   def push_event_data
     return unless file_type
-    return base_data.merge(location_metadata) if file_type.to_sym == :location
-    return base_data.merge(fallback_data) if file_type.to_sym == :fallback
-    return base_data.merge(contact_metadata) if file_type.to_sym == :contact
 
-    base_data.merge(file_metadata)
+    base_data.merge(metadata_for_file_type)
   end
 
   # NOTE: the URl returned does a 301 redirect to the actual file
@@ -76,6 +73,30 @@ class Attachment < ApplicationRecord
 
   private
 
+  def metadata_for_file_type
+    case file_type.to_sym
+    when :location
+      location_metadata
+    when :fallback
+      fallback_data
+    when :contact
+      contact_metadata
+    when :audio
+      audio_metadata
+    else
+      file_metadata
+    end
+  end
+
+  def audio_metadata
+    audio_file_data = base_data.merge(file_metadata)
+    audio_file_data.merge(
+      {
+        transcribed_text: meta&.[]('transcribed_text') || ''
+      }
+    )
+  end
+
   def file_metadata
     metadata = {
       extension: extension,
@@ -149,3 +170,5 @@ class Attachment < ApplicationRecord
     file_content_type.start_with?('image/', 'video/', 'audio/')
   end
 end
+
+Attachment.include_mod_with('Concerns::Attachment')