Module preflight 

Environment preflight (roadmap M2) — extracted from orchestrator.rs in the monolith split (pure code motion, no behavior change). Advisory only: preflight never blocks a mission (the final contract gate stays authoritative); it surfaces missing prerequisites as a single orchestrator.decision at run start, and PREFLIGHT_CLEAR_SUMMARY durably supersedes an earlier warning once a run’s probes come back clean.

Structs

PreflightIssue

One environment-preflight issue surfaced at run start (roadmap M2).

Constants

PREFLIGHT_CLEAR_SUMMARY

Durable marker emitted when a run’s environment preflight is clean. A clean event is necessary to supersede an issue recorded by an earlier run.