fix: init-db via sh+sqlite3 cli, exact prisma schema sql

simplify: standalone has prisma, init-db at runtime, no template copy

fix: db push+build same stage, template db approach

fix: prisma db push at build time, template db, remove npx runtime

refactor: prisma 6 + sqlite, fix alpine sh, clean code

init: nexova - notes crud + sqlite + hf backup