The Postgres adapter in utopia-php/database requires PostGIS, pgvector,
and pg_trgm extensions. The plain postgres:18 image lacked these, causing
"collation utf8_ci_ai does not exist" errors (CREATE EXTENSION failed
before the collation could be created).
Switch to postgres:17 with a custom Dockerfile that installs the required
extensions, matching the approach used by utopia-php/database's own tests.
Also reverts the volume mount to /var/lib/postgresql/data (correct for v17).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Jake Barnby