feat(postgres): add support for batch and copyfrom#71
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Generated postgres query helpers only require the shared query execution surface exposed by both root `Sql` clients and transaction-scoped `TransactionSql` clients. Type normal query parameters as `Sql | TransactionSql` and import both types type-only so callers can pass `tx` from `sql.begin(...)` without casts. Add strict type-check coverage proving generated query helpers accept transaction clients.
`vitest` makes some of the upcoming tests more ergonomic.
Add live Postgres integration coverage for generated :batch and :copyfrom helpers, plus opt-in perf comparisons for bulk and latency-sensitive query patterns. Run integration tests in CI against PostgreSQL 16.
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:batchexec,:batchone, and:batchmanyhave so far been supported only in Go, when usingpgx/v4orpgx/v5driver.:copyfromhas been supported with other DBs as well but only in Go. This PR adds support for those annotations for Typescript when usingpostgres.jsdriver.Other notable changes:
vitest