worker

type Mission struct {
	Command   string // worker command
	MissionID string // logical mission id, when available
	Root      string // project root; when set, a durable spec-scoped mission record is persisted
	SessionID string
	WorkerID  string
	Spec      string
	TaskID    string
	Attempt   int // task attempt (>= 1); keys the durable mission filename
	Role      string
	Files     []string // SPECD_ARTIFACT hint
	Deadline  string   // RFC3339Nano

	// Payload is optional mission-file JSON content. When nil, the Mission itself
	// is written. This preserves the existing Pinky mission file contract while
	// keeping process execution decoupled from internal/core types.
	Payload any
}

type Result struct {
	ExitErr  error
	TimedOut bool
	Duration time.Duration
}

type Runner interface {
	Run(ctx context.Context, m Mission) (Result, error)
}

type ShellRunner struct {
	Stdout io.Writer
	Stderr io.Writer
}