Simply Optimized Forked 26.05

Port to 26.1.2, adds oxidizium, updates all mods, adds worldthreader, adds in zfastnoise config, improves modernfix config, add ixeris config, and removes particlecore (unavailable)

also port into the content monorepo again, and change versioning to calver

Meta-changes

Automated Commit Log

• 6d397571 chore(sof): bump manifest - omo50
• 1a99334d chore(sof): re-add to monorepo and update - omo50