heliosdb-nano-migrate

Migrate an existing app to HeliosDB-Nano with minimal source changes. Covers SQLite (Python sqlite3 drop-in via the heliosdb_sqlite SDK), PostgreSQL (any PG-wire client works unchanged), and MySQL (--mysql listener for PHP/WordPress). Documents the dialect-autodetect parser, accepted SQLite-isms (? placeholders, INSERT OR REPLACE/IGNORE, INTEGER PRIMARY KEY AUTOINCREMENT, sqlite_master, PRAGMA *), and the gotchas…