Chore/clean saving folder

[kimmchii]

• make it more readability when saving audio snippets
• remove some builtin packages in requirements.txt

[titipata]

LGTM!

[Copilot]

Pull Request Overview

Refactors how audio segments are saved by centralizing and timestamping output directories, and removes redundant package entries.

• Imports time to generate timestamped folders.
• Moves segments/ root folder creation to module scope.
• Creates nested timestamped and per-file directories for segmented audio and updates split_audio target path.

Comments suppressed due to low confidence (1)

app.py:41

• [nitpick] Using output_wav_name (which includes the .wav extension) for a directory name can be confusing. Consider using the stem (e.g., Path(output_wav_name).stem) so the folder name doesn’t include the file extension.

segment_audios_folder = current_time_segment_folder / output_wav_name

[Copilot]

For consistency with the rest of the codebase using pathlib.Path, you could replace os.makedirs(...) with current_time_segment_folder.mkdir(exist_ok=True, parents=true).

Suggested change

	os.makedirs(current_time_segment_folder, exist_ok=True)
	# Create folder for segmented audios.
	segment_audios_folder = current_time_segment_folder / output_wav_name
	os.makedirs(segment_audios_folder, exist_ok=True)
	current_time_segment_folder.mkdir(exist_ok=True, parents=True)
	# Create folder for segmented audios.
	segment_audios_folder = current_time_segment_folder / output_wav_name
	segment_audios_folder.mkdir(exist_ok=True, parents=True)