Add Podcast Plugins plugin

[kmturley]

Summary

• Adds Podcast Plugins v1.0.0 (trummerschlunk/PodcastPlugins) — a speech enhancement bundle (TRACK + MASTER) for podcasters, built with DPF/Faust.
• VST3, VST2, CLAP, LV2, AU across Linux (arm64/armhf/x32/x64), macOS (universal), Windows (x32/x64), plus standalone builds where present — verified by extracting each archive/dmg rather than trusting filename/README text alone.
• Product image sourced from the repo's own TRACK plugin screenshot (README) since the auto-fetched logo was low-detail.

Test plan

• npm run dev:validate
• npm run check

[github-actions]

VirusTotal Report:

• trummerschlunk/podcastplugins/1.0.0/podcast-plugins-1.0.0-linux-arm64.tar.xz
• trummerschlunk/podcastplugins/1.0.0/podcast-plugins-1.0.0-linux-armhf.tar.xz
• trummerschlunk/podcastplugins/1.0.0/podcast-plugins-1.0.0-linux-i686.tar.xz
• trummerschlunk/podcastplugins/1.0.0/podcast-plugins-1.0.0-linux-x86_64.tar.xz
• trummerschlunk/podcastplugins/1.0.0/podcast-plugins-1.0.0-macos-universal.dmg
• trummerschlunk/podcastplugins/1.0.0/podcast-plugins-1.0.0-win32.zip
• trummerschlunk/podcastplugins/1.0.0/podcast-plugins-1.0.0-win64.zip

[github-actions]

Destination urls:
Registry: https://open-audio-stack.github.io/open-audio-stack-registry/plugins/trummerschlunk/podcastplugins
Site: https://studiorack.github.io/studiorack-site/plugins/trummerschlunk/podcastplugins

[github-actions]

Plugin author notification:

@trummerschlunk — your plugin has been submitted to the Open Audio Stack registry. Please review this PR and let us know if the metadata (name, description, tags, files) is correct. To see a full list of all currently added plugins, click here.

[kmturley]

VirusTotal has flagged this binary:

https://www.virustotal.com/gui/file/42d4c73a3185040672faf8556e73cf43cd7481c63cc6435f399dfc60088ed780?nocache=1