Allow usage without mandatory episode numbers

[graemearthur]

Problem Statement

I would an option to use this tool without an episode number
Currently, jivefire seems to require the --episode flag (or expects it in the logic) to generate the overlay. When using the tool to generate a quick visualizer for a podcast audio file that is not numbered, being forced to provide a numerical episode ID feels unnecessary and results in "dummy data" (like Episode 0) being rendered on the video.

Proposed Solution

I would like --episode to be optional or override to not render it

Alternatives Considered

No response

Use Case

for uploading archive 17 years of podcast archive to youtube.

Additional Context

No response

Checklist

• I have searched existing issues to avoid duplicates
• I have considered if this feature fits the project scope