vaultspec-executelisted

# Execute (vaultspec-execute) Implement an approved plan within the system's scope and decision constraints. This skill owns execution practice; the system owns authorization, recovery, and review cadence, and executor personas own worker coordination and reporting. ## Resume - Use `vaultspec-core status <feature>` (or `status`) and the system's Execute and recover contract. Keep working context to the current assignment, governing constraints, relevant verification criteria, and unresolved state. - A dispatched worker starts at its assigned Step and reuses the orchestrator's grounding; inspect affected code as needed. ## Per Step - Ground the Step per `vaultspec-discovery`. Before adding code, make a bounded search for existing implementations, callers, and nearby tests. Reuse suitable code; stop discovery when the implementation location and relevant patterns are clear. - Deliver the Step's intended behavior within its approved scope and file areas. Follow local APIs, type hints, dependencies, naming, formatting, and error handling. Apply the system's blocker contract to uncovered choices; record routine row corrections through `plan_edit`. Workers route plan corrections to the orchestrator. - Run the project's configured formatting, lint, type checks, and relevant tests. Add or update tests when needed to establish changed behavior. Reuse passing evidence while affected code, dependencies, and check conditions remain unchanged; share it between w