Persistence contract

web_projects stores the approved brief, file names/hashes, source fingerprint, build check, last run and explicit ui_qa: not_run. skill_runs stores actions and evidence references. Existing-stack record preserves source only in Git; do not upload source or command output.

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.