performance overhaul#181

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realtasty wants to merge 3 commits intoKylemc1413:masterfrom

realtasty:master

Commits on Mar 5, 2026

song loading performance overhaul w/ binary cache
realtasty
committed

Commits on Mar 6, 2026

fix binary cache fast-path, stale hash fallback, and thread safety
realtasty
committed
skip cache save on incremental refresh
realtasty
committed