feat: update testing infrastructure to vitess

* fix: broken tests

* fix

* add explicit prisma generate command

* fix: update test scripts for Prisma v7 compatibility

- Change URL pattern from prisma+postgres:// to postgres:// for @prisma/adapter-pg
- Add npx prisma generate to starter and postgis-express tests

* fix sqlite import

* remove idle timeout

* add longer timeout

* convert tests to vitest

* remove useless files

* fix ai slop

* simplify tests

* try concurrent test

* simplify workflow

* test

* matrix tests

* remove claude.md

Author: AmanVarshney01