Enumeration QueryTypes

Query type discriminator, used by prorm.query() to decide how to shape a raw result.

This enum existed twice with different members: src/prorm.ts declared UPSERT/VERSION/SHOWTABLES/DESCRIBE, while src/types/index.ts declared BULKUPDATE/CALL. The package root explicitly re-exported the prorm.ts one, so QueryTypes.CALL and QueryTypes.BULKUPDATE were unreachable for consumers even though internal code in types/index.ts referred to them. This is the union of both, defined once; both modules now re-export it.