Incorrect File Naming Pattern

[s3cy]

Hi, I noticed a potential issue with the file naming pattern in the code. Currently, the file is named using the following format:

comfyui_controlnet_aux/node_wrappers/pose_keypoint_postprocess.py

Line 62 in 1e9eac6

file = f"{filename}_{counter:05}.json"

However, based on the logic in the ComfyUI project, specifically in this section:
https://github.com/comfyanonymous/ComfyUI/blob/be4e760648e0234f9202b9cbe7dcfb3bd307acb9/folder_paths.py#L352

    def map_filename(filename: str) -> tuple[int, str]:
        prefix_len = len(os.path.basename(filename_prefix))
        prefix = filename[:prefix_len + 1]
        try:
            digits = int(filename[prefix_len + 1:].split('_')[0])
        except:
            digits = 0
        return digits, prefix

Example 1: filename = "PoseKeypoint_00001_.json"

1. Calculate prefix length: The length of filename_prefix is 12 ("PoseKeypoint").

2. Extract prefix: prefix is filename[:13] (the first 13 characters), which is "PoseKeypoint_".

3. Extract digits: The remaining part is "00001_.json", which is split to get "00001" and converted to the integer 1.

4. Return result: (1, "PoseKeypoint_").

Example 2: filename = "PoseKeypoint_00001.json"

1. Calculate prefix length: Same as above, the prefix length is 12.

2. Extract prefix: prefix is still "PoseKeypoint_".

3. Extract digits: The remaining part is "00001.json", which is split to get "00001.json". The conversion fails, so digits is set to 0.

4. Return result: (0, "PoseKeypoint_").

Key Point: If filename_prefix does not include the trailing underscore, the second filename fails to convert the digits because the number is directly followed by .json, resulting in digits=0.

file = f"{filename}_{counter:05}_.json"

This change ensures that the file naming convention aligns with the validation logic in the code, which expects files to end with an underscore.