Docs aligned to the 228-genre reality — every count measured, not copied

The full agreement pass after the batch: README/CLAUDE/GENRE-SPACE/ MUSIC-MIND/HOSTING/how.html/CONTRIBUTING all agree on the live truth (228 genres, 228/228 matrix, meter anchors named, the 3/7-bar travel arrival contract, the ⤓ downloads, the tab survival, the ⓘ overhaul, CPU meter gone, 608 MB…

▶ read how a song is made — the drawn pipeline itself https://stellate.app/how.html

21d4d34 https://github.com/aboard-io/stellate/commit/21d4d344a539010e9b412f219f73bbf1b657450a