Persistence contract

web_test_runs stores suite, project id, source fingerprint, viewport checks, failed step, console error hashes/counts and screenshot file references/hashes. PNG binaries and raw console strings stay out of the API. skill_runs records final state. Evidence files live below the current workspace's web-evidence/<test_id> directory.

Use shared Store and Run; do not create a parallel database or direct database driver. Every record is tenant/workspace/actor scoped, updates use revision checks, and successful writes require canonical readback. See schema, auth, errors and reset. Source files remain local/Git. The course API is an explicit backend dependency, not a claimed live service.