feat: introduce trigger functionality (#27644)

Signed-off-by: lyzno1 <yuanyouhuilyz@gmail.com>
Co-authored-by: Stream <Stream_2@qq.com>
Co-authored-by: lyzno1 <92089059+lyzno1@users.noreply.github.com>
Co-authored-by: zhsama <torvalds@linux.do>
Co-authored-by: Harry <xh001x@hotmail.com>
Co-authored-by: lyzno1 <yuanyouhuilyz@gmail.com>
Co-authored-by: yessenia <yessenia.contact@gmail.com>
Co-authored-by: hjlarry <hjlarry@163.com>
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>
Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
Co-authored-by: WTW0313 <twwu@dify.ai>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

api/services/app_generate_service.py

@@ -31,6 +31,7 @@ class AppGenerateService:
         args: Mapping[str, Any],
         invoke_from: InvokeFrom,
         streaming: bool = True,
+        root_node_id: str | None = None,
     ):
         """
         App Content Generate
@@ -114,6 +115,7 @@ class AppGenerateService:
                             args=args,
                             invoke_from=invoke_from,
                             streaming=streaming,
+                            root_node_id=root_node_id,
                             call_depth=0,
                         ),
                     ),