Ptah — database migrations without surprises

Field notes

Ptah converts several schema inputs—including SQL, YAML, HCL, DBML, and annotated Go structs—into a common planning workflow against a live database. Its command examples cover dry runs, drift checks, linting, status, and migration checksums, with stable exit codes for CI use. A separate inference sequence handles pgvector re-embedding by building a new generation beside the active one, then verifying and cutting over only when approved.