feat: allow bots to handle campaigns when sender_id is nil (#12805)

app/models/conversation.rb

@@ -228,14 +228,17 @@ class Conversation < ApplicationRecord
   def determine_conversation_status
     self.status = :resolved and return if contact.blocked?
 
-    # Message template hooks aren't executed for conversations from campaigns
-    # So making these conversations open for agent visibility
-    return if campaign.present?
+    return handle_campaign_status if campaign.present?
 
     # TODO: make this an inbox config instead of assuming bot conversations should start as pending
     self.status = :pending if inbox.active_bot?
   end
 
+  def handle_campaign_status
+    # If campaign has no sender (bot-initiated) and inbox has active bot, let bot handle it
+    self.status = :pending if campaign.sender_id.nil? && inbox.active_bot?
+  end
+
   def notify_conversation_creation
     dispatcher_dispatch(CONVERSATION_CREATED)
   end