feat(api): introduce select, file and file list form input types to Human Input node (#36322)

Co-authored-by: JzoNg <jzongcode@gmail.com>
Co-authored-by: GPT 5.4 <codex@openai.com>
Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
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api/openapi/markdown/openapi-swagger.md

@@ -597,7 +597,7 @@ mode is a closed enum.
 | Name | Type | Description | Required |
 | ---- | ---- | ----------- | -------- |
 | action | string |  | Yes |
-| inputs | object |  | Yes |
+| inputs | object | Submitted human input values keyed by output variable name. Use a string for paragraph or select input values, a file mapping for file inputs, and a list of file mappings for file-list inputs. Local file mappings use `transfer_method=local_file` with `upload_file_id`; remote file mappings use `transfer_method=remote_url` with `url` or `remote_url`. | Yes |
 
 #### JsonValue