fix(agent-bot): use consistent pattern for conversation_updated handler

Match the same pattern as conversation_opened/conversation_resolved,
using agent_bots_for to send to both inbox-level and conversation-level
bots. Update specs accordingly.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

app/listeners/agent_bot_listener.rb

@@ -17,10 +17,10 @@ class AgentBotListener < BaseListener
 
   def conversation_updated(event)
     conversation = extract_conversation_and_account(event)[0]
-    return if conversation.assignee_agent_bot.blank?
-
-    payload = conversation.webhook_data.merge(event: __method__.to_s)
-    process_webhook_bot_event(conversation.assignee_agent_bot, payload)
+    inbox = conversation.inbox
+    event_name = __method__.to_s
+    payload = conversation.webhook_data.merge(event: event_name)
+    agent_bots_for(inbox, conversation).each { |agent_bot| process_webhook_bot_event(agent_bot, payload) }
   end
 
   def message_created(event)

spec/listeners/agent_bot_listener_spec.rb

@@ -61,6 +61,22 @@ describe AgentBotListener do
     let(:event_name) { 'conversation.updated' }
     let!(:event) { Events::Base.new(event_name, Time.zone.now, conversation: conversation) }
 
+    context 'when agent bot is not configured' do
+      it 'does not send webhook' do
+        expect(AgentBots::WebhookJob).not_to receive(:perform_later)
+        listener.conversation_updated(event)
+      end
+    end
+
+    context 'when agent bot is configured on inbox' do
+      it 'sends webhook to the inbox agent bot' do
+        create(:agent_bot_inbox, inbox: inbox, agent_bot: agent_bot)
+        expect(AgentBots::WebhookJob).to receive(:perform_later).with(agent_bot.outgoing_url,
+                                                                      conversation.webhook_data.merge(event: 'conversation_updated')).once
+        listener.conversation_updated(event)
+      end
+    end
+
     context 'when conversation is assigned to an agent bot' do
       before do
         conversation.update!(assignee_agent_bot: agent_bot, assignee: nil)
@@ -72,13 +88,6 @@ describe AgentBotListener do
         listener.conversation_updated(event)
       end
     end
-
-    context 'when conversation is not assigned to an agent bot' do
-      it 'does not send webhook' do
-        expect(AgentBots::WebhookJob).not_to receive(:perform_later)
-        listener.conversation_updated(event)
-      end
-    end
   end
 
   describe '#webwidget_triggered' do