chain simple forms / surveys into longer runs using the power of R to generate pretty feedback and complex designs https://formr.org

Fixes

• composer test now passes --exclude-group integration (matches the bootstrap docstring + CI intent); new composer test:integration script runs only that group. Unit lane is green again (was 12 errors + 2 failures from MariaDB-only SQL hitting the SQLite :memory: bootstrap).
• DB::table_exists() validates the table-name argument against /^[A-Za-z0-9_]+$/ and throws InvalidArgumentException on mismatch. Closes a SQL-injection sink (raw concat into SHOW TABLES LIKE '...').
• DB::whereIn() returns $this for builder-API parity with where() / like() (latent bug — no production callers chained through it).

Tests + docs

• documentation/agent_doc/testing.md catalogs the two PHPUnit lanes, every @group integration class, root cause + fix shape for the six deferred test cases, and the env-var bootstrap switch + GitHub Actions service-container sketch for a real-DB CI lane.