feat: Human Input Node (#32060)

The frontend and backend implementation for the human input node.

Co-authored-by: twwu <twwu@dify.ai>
Co-authored-by: JzoNg <jzongcode@gmail.com>
Co-authored-by: yyh <92089059+lyzno1@users.noreply.github.com>
Co-authored-by: zhsama <torvalds@linux.do>

api/tests/unit_tests/services/test_conversation_service.py

@@ -508,9 +508,12 @@ class TestConversationServiceMessageCreation:
     within conversations.
     """
 
+    @patch("services.message_service._create_execution_extra_content_repository")
     @patch("services.message_service.db.session")
     @patch("services.message_service.ConversationService.get_conversation")
-    def test_pagination_by_first_id_without_first_id(self, mock_get_conversation, mock_db_session):
+    def test_pagination_by_first_id_without_first_id(
+        self, mock_get_conversation, mock_db_session, mock_create_extra_repo
+    ):
         """
         Test message pagination without specifying first_id.
 
@@ -540,6 +543,9 @@ class TestConversationServiceMessageCreation:
         mock_query.order_by.return_value = mock_query  # ORDER BY returns self for chaining
         mock_query.limit.return_value = mock_query  # LIMIT returns self for chaining
         mock_query.all.return_value = messages  # Final .all() returns the messages
+        mock_repository = MagicMock()
+        mock_repository.get_by_message_ids.return_value = [[] for _ in messages]
+        mock_create_extra_repo.return_value = mock_repository
 
         # Act - Call the pagination method without first_id
         result = MessageService.pagination_by_first_id(
@@ -556,9 +562,10 @@ class TestConversationServiceMessageCreation:
         # Verify conversation was looked up with correct parameters
         mock_get_conversation.assert_called_once_with(app_model=app_model, user=user, conversation_id=conversation.id)
 
+    @patch("services.message_service._create_execution_extra_content_repository")
     @patch("services.message_service.db.session")
     @patch("services.message_service.ConversationService.get_conversation")
-    def test_pagination_by_first_id_with_first_id(self, mock_get_conversation, mock_db_session):
+    def test_pagination_by_first_id_with_first_id(self, mock_get_conversation, mock_db_session, mock_create_extra_repo):
         """
         Test message pagination with first_id specified.
 
@@ -590,6 +597,9 @@ class TestConversationServiceMessageCreation:
         mock_query.limit.return_value = mock_query  # LIMIT returns self for chaining
         mock_query.first.return_value = first_message  # First message returned
         mock_query.all.return_value = messages  # Remaining messages returned
+        mock_repository = MagicMock()
+        mock_repository.get_by_message_ids.return_value = [[] for _ in messages]
+        mock_create_extra_repo.return_value = mock_repository
 
         # Act - Call the pagination method with first_id
         result = MessageService.pagination_by_first_id(
@@ -684,9 +694,10 @@ class TestConversationServiceMessageCreation:
         assert result.data == []
         assert result.has_more is False
 
+    @patch("services.message_service._create_execution_extra_content_repository")
     @patch("services.message_service.db.session")
     @patch("services.message_service.ConversationService.get_conversation")
-    def test_pagination_with_has_more_flag(self, mock_get_conversation, mock_db_session):
+    def test_pagination_with_has_more_flag(self, mock_get_conversation, mock_db_session, mock_create_extra_repo):
         """
         Test that has_more flag is correctly set when there are more messages.
 
@@ -716,6 +727,9 @@ class TestConversationServiceMessageCreation:
         mock_query.order_by.return_value = mock_query  # ORDER BY returns self for chaining
         mock_query.limit.return_value = mock_query  # LIMIT returns self for chaining
         mock_query.all.return_value = messages  # Final .all() returns the messages
+        mock_repository = MagicMock()
+        mock_repository.get_by_message_ids.return_value = [[] for _ in messages]
+        mock_create_extra_repo.return_value = mock_repository
 
         # Act
         result = MessageService.pagination_by_first_id(
@@ -730,9 +744,10 @@ class TestConversationServiceMessageCreation:
         assert len(result.data) == limit  # Extra message should be removed
         assert result.has_more is True  # Flag should be set
 
+    @patch("services.message_service._create_execution_extra_content_repository")
     @patch("services.message_service.db.session")
     @patch("services.message_service.ConversationService.get_conversation")
-    def test_pagination_with_ascending_order(self, mock_get_conversation, mock_db_session):
+    def test_pagination_with_ascending_order(self, mock_get_conversation, mock_db_session, mock_create_extra_repo):
         """
         Test message pagination with ascending order.
 
@@ -761,6 +776,9 @@ class TestConversationServiceMessageCreation:
         mock_query.order_by.return_value = mock_query  # ORDER BY returns self for chaining
         mock_query.limit.return_value = mock_query  # LIMIT returns self for chaining
         mock_query.all.return_value = messages  # Final .all() returns the messages
+        mock_repository = MagicMock()
+        mock_repository.get_by_message_ids.return_value = [[] for _ in messages]
+        mock_create_extra_repo.return_value = mock_repository
 
         # Act
         result = MessageService.pagination_by_first_id(