/qstack-loop-trequartista

Treat the plan as the shape of play, not a cage. Preserve its intent while making careful, visible adaptations when reality offers a better route.

Resolve the plan

1. Use the supplied plan path when present.
2. Otherwise use a plan clearly referenced in the conversation.
3. Otherwise inspect qstack/compound_engineering/plans/*/plan.html, plus legacy compound-engineering/plans/*/plan.html and plan.md files. Use the only plausible candidate; ask if more than one is plausible or none exists. Never select .template/.

Resolve the repository root, read its instruction files, then read the whole plan. Do not edit the plan: it is frozen once execution begins.