Switch Plex to LinuxServer.io and rename docker-gc to task-scheduler

[neybar]

Summary

• Plex: Switch from plexinc/pms-docker:plexpass to lscr.io/linuxserver/plex:latest for better security updates and community support
• Task Scheduler: Rename docker-gc to task-scheduler and add weekly Plex restart

Changes

Plex Container

• Switch to LinuxServer.io image (actively maintained, weekly base OS updates)
• Set VERSION=public for auto-updates on container restart
• Remove unused port 32401 (only needed for multi-server setups)
• Add descriptive comments to port mappings
• Enable no-new-privileges:true security option
• Remove expired PLEX_CLAIM token

Task Scheduler (formerly docker-gc)

• Rename service for general-purpose scheduled tasks
• Reorganize scripts into scripts/ subdirectory
• Add weekly Plex restart (Sunday 3 AM) to pick up VERSION=public updates
• Keep daily Docker cleanup at midnight

Documentation

• Update CLAUDE.md with new service names and notes

Testing

• docker compose build task-scheduler - successful
• docker compose up -d task-scheduler plex - both containers running
• Task scheduler startup cleanup ran (reclaimed 407.6MB)
• Plex started with LinuxServer.io image v1.42.2.10156
• GPU transcoding detected (/dev/dri)
• Traefik validation: 27/27 tests passed

Post-merge cleanup

Delete the old docker-gc/ directory:

rm -rf docker-gc/

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