chore: add more logging to mailbox helpers [CW-3071] (#8909)

* chore: add more logging to mailbox helpers

* fix: deleted entries

* fix: log order

* refactor: log using `processed_mail.message_id`

app/mailboxes/mailbox_helper.rb

@@ -2,6 +2,7 @@ module MailboxHelper
   private
 
   def create_message
+    Rails.logger.info "[MailboxHelper] Creating message #{processed_mail.message_id}"
     return if @conversation.messages.find_by(source_id: processed_mail.message_id).present?
 
     @message = @conversation.messages.create!(
@@ -36,6 +37,7 @@ def add_attachments_to_message
   end
 
   def process_regular_attachments(attachments)
+    Rails.logger.info "[MailboxHelper] Processing regular attachments for message with ID: #{processed_mail.message_id}"
     attachments.each do |mail_attachment|
       attachment = @message.attachments.new(
         account_id: @conversation.account_id,
@@ -46,6 +48,8 @@ def process_regular_attachments(attachments)
   end
 
   def process_inline_attachments(attachments)
+    Rails.logger.info "[MailboxHelper] Processing inline attachments for message with ID: #{processed_mail.message_id}"
+
     # create an instance variable here, the `embed_inline_image_source`
     # updates them directly. And then the value is eventaully used to update the message content
     @html_content = processed_mail.serialized_data[:html_content][:full]
@@ -98,7 +102,9 @@ def create_contact
         }
       }
     ).perform
+
     @contact = @contact_inbox.contact
+    Rails.logger.info "[MailboxHelper] Contact created with ID: #{@contact.id} for inbox with ID: #{@inbox.id}"
   end
 
   def notification_email_from_chatwoot?