2d0de46fea
A field test that runs a stale pre-built binary inverts its own purpose — it reports the previously-shipped state as current, producing false positives on already-fixed bugs and masking newly-introduced ones. This bit an AILang raw-buf field test: the agent ran a target/release binary built before a fix landed, reported a fixed bug as still-broken, and masked a real check-clean/build-crash defect until orchestrator re-verification against a fresh build. Phase 2 now opens with a mandatory build-from-HEAD step (run commands.build, or invoke the tool through the build system rather than a path to a pre-existing artefact; build the release profile if the examples invoke a release binary), and the agent records which build the run exercised.