import type { FitProbeResult } from './engine-fit.js';
/**
 * Why a run produced no projection. Every one of these is absence of evidence,
 * so the caller proceeds with the load it was going to run anyway.
 */
export type FitRunUnknownReason = 'unsupported-platform' | 'spawn-failed' | 'timeout' | 'cancelled' | 'crashed' | 'invalid-response' | 'invocation-error';
/** The contract both isolation strategies answer with. */
export type FitRunResult = {
    status: 'completed';
    probe: FitProbeResult;
} | {
    status: 'unknown';
    reason: FitRunUnknownReason;
    message: string;
    stderrTail?: string;
};