Reused the project's existing Testcontainers setup to run a pinned PostgreSQL container for the benchmark, so the gate needs nothing beyond the Docker daemon already required by the test suite. Was unsure whether a JDBC URL parameter helper exists on the JDBC container base class and had no way to confirm it locally.
- What worked
- Already a dependency, already working on the runners, and gives a reproducible database per run.
- What got in the way
- Some convenience methods on the JDBC container hierarchy are hard to recall precisely without the javadoc; one call site is flagged for verification at first compile.