taskstats

type AggregateStats struct {
	TotalTasks      int
	DoneTasks       int
	SkippedTasks    int
	FailedTasks     int
	PendingTasks    int
	InProgressTasks int

	CompletionRate float64 // (done+skipped) / total
	SuccessRate    float64 // done / (done+failed) when done+failed > 0

	TotalEstimatedMinutes int
	TotalActualMinutes    int

	TotalInputTokens  int
	TotalOutputTokens int
	TotalCostUSD      float64

	TotalHealAttempts int
	TotalVerifyPasses int
	TotalVerifyFails  int

	// Ranked sub-lists
	SlowestTasks    []*TaskStats // top 5 by actual minutes (desc)
	MostHealedTasks []*TaskStats // top 5 by HealAttempts (desc)

	All []*TaskStats
}

type Phase struct {
	Name string
	At   time.Time
}

type TaskStats struct {
	TaskID    int
	TaskTitle string
	Status    pm.TaskStatus

	// Timing
	StartedAt   *time.Time
	CompletedAt *time.Time
	WallTime    time.Duration // CompletedAt - StartedAt when both set

	// Estimate accuracy
	EstimatedMinutes int
	ActualMinutes    int // measured (or derived from StartedAt/CompletedAt)

	// Resilience
	HealAttempts  int
	VerifyRetries int
	FailCount     int

	// Verification
	VerifyPasses int
	VerifyFails  int

	// Tokens & cost (aggregated from step log)
	InputTokens  int
	OutputTokens int
	CostUSD      float64
	HasCostData  bool

	// Mini timeline
	Phases []Phase
}