fix: Disable automations on auto-reply emails (#12101)

The term "sorcerer’s apprentice mode" is defined as a bug in a protocol
where, under some circumstances, the receipt of a message causes
multiple messages to be sent, each of which, when received, triggers the
same bug. - RFC3834

Reference: https://github.com/chatwoot/chatwoot/pull/9606

This PR:
- Adds an auto_reply attribute to message.
- Adds an auto_reply attribute to conversation. 
- Disable conversation_created / conversation_opened event if auto_reply
is set.
- Disable message_created event if auto_reply is set.

---------

Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>

spec/models/message_spec.rb

@@ -548,4 +548,69 @@ RSpec.describe Message do
       expect(presenter).to have_received(:outgoing_content)
     end
   end
+
+  describe '#auto_reply_email?' do
+    context 'when message is not an incoming email and inbox is not email' do
+      let(:conversation) { create(:conversation) }
+      let(:message) { create(:message, conversation: conversation, message_type: :outgoing) }
+
+      it 'returns false' do
+        expect(message.auto_reply_email?).to be false
+      end
+    end
+
+    context 'when message is an incoming email' do
+      let(:email_channel) { create(:channel_email) }
+      let(:email_inbox) { create(:inbox, channel: email_channel) }
+      let(:conversation) { create(:conversation, inbox: email_inbox) }
+
+      it 'returns false when auto_reply is not set to true' do
+        message = create(
+          :message,
+          conversation: conversation,
+          message_type: :incoming,
+          content_type: 'incoming_email',
+          content_attributes: {}
+        )
+        expect(message.auto_reply_email?).to be false
+      end
+
+      it 'returns true when auto_reply is set to true' do
+        message = create(
+          :message,
+          conversation: conversation,
+          message_type: :incoming,
+          content_type: 'incoming_email',
+          content_attributes: { email: { auto_reply: true } }
+        )
+        expect(message.auto_reply_email?).to be true
+      end
+    end
+
+    context 'when inbox is email' do
+      let(:email_channel) { create(:channel_email) }
+      let(:email_inbox) { create(:inbox, channel: email_channel) }
+      let(:conversation) { create(:conversation, inbox: email_inbox) }
+
+      it 'returns false when auto_reply is not set to true' do
+        message = create(
+          :message,
+          conversation: conversation,
+          message_type: :outgoing,
+          content_attributes: {}
+        )
+        expect(message.auto_reply_email?).to be false
+      end
+
+      it 'returns true when auto_reply is set to true' do
+        message = create(
+          :message,
+          conversation: conversation,
+          message_type: :outgoing,
+          content_attributes: { email: { auto_reply: true } }
+        )
+        expect(message.auto_reply_email?).to be true
+      end
+    end
+  end
 end