feat: add cost column to policy status category table

Author: binarylogic

internal/app/statusbar/policystatus/policystatus.go

@@ -109,9 +109,9 @@ func (m *Model) stateKey(s domain.PolicySummary, cats []domain.PolicyCategorySta
 		s.TotalBytesPerHour, len(cats))
 
 	for _, c := range cats {
-		key += fmt.Sprintf("|%s:%d:%d:%d:%.0f:%.0f:%s:%s",
+		key += fmt.Sprintf("|%s:%d:%d:%d:%.0f:%.0f:%.2f:%s:%s",
 			c.Category, c.PendingCount, c.ApprovedCount, c.DismissedCount,
-			c.EstimatedVolumePerHour, c.EstimatedBytesPerHour,
+			c.EstimatedVolumePerHour, c.EstimatedBytesPerHour, c.EstimatedCostPerHour,
 			c.RiskLevel, c.Benefit)
 	}
 
@@ -218,7 +218,7 @@ func (m *Model) renderCategoryTable(width int) string {
 	}
 
 	tbl := table.New(m.theme, table.WithMaxValueWidth(30))
-	tbl.Headers("Category", "Pending", "Risk", "Benefit", "Waste", "Impact")
+	tbl.Headers("Category", "Pending", "Risk", "Benefit", "Waste", "Cost", "Impact")
 	tbl.SetWidth(width)
 
 	for _, c := range m.categories {
@@ -228,6 +228,7 @@ func (m *Model) renderCategoryTable(width int) string {
 			m.renderRisk(c.RiskLevel),
 			formatBenefitLabel(c.Benefit),
 			m.formatWaste(c),
+			formatCategoryCost(c),
 			formatCategoryImpact(c),
 		)
 	}
@@ -289,6 +290,17 @@ func wastePercent(s domain.PolicySummary) int {
 	return 0
 }
 
+// formatCategoryCost returns estimated monthly cost reduction for a category.
+func formatCategoryCost(c domain.PolicyCategoryStatus) string {
+	if c.EstimatedCostPerHour > 0 {
+		monthly := c.EstimatedCostPerHour * 730
+		if monthly >= 1 {
+			return "~" + formatCost(monthly) + "/mo"
+		}
+	}
+	return "—"
+}
+
 // formatCategoryImpact returns the best available impact string for a category.
 // Cascades: volume → bytes → dash.
 func formatCategoryImpact(c domain.PolicyCategoryStatus) string {

internal/domain/policy_category_status.go

@@ -19,6 +19,7 @@ type PolicyCategoryStatus struct {
 	DismissedCount         int64
 	EstimatedVolumePerHour float64
 	EstimatedBytesPerHour  float64
+	EstimatedCostPerHour   float64
 	RiskLevel              RiskLevel
 	Benefit                string
 }

internal/sqlite/gen/log_event_policies.sql.go

@@ -43,6 +43,7 @@ func (l *logEventPoliciesImpl) ListCategoryStatuses(ctx context.Context) ([]doma
 			DismissedCount:         row.DismissedCount,
 			EstimatedVolumePerHour: derefFloat(row.EstimatedVolumePerHour),
 			EstimatedBytesPerHour:  derefFloat(row.EstimatedBytesPerHour),
+			EstimatedCostPerHour:   derefFloat(row.EstimatedCostPerHour),
 			RiskLevel:              domain.RiskLevel(row.RiskLevel),
 			Benefit:                row.Benefits,
 		}

internal/sqlite/log_event_policies.go

@@ -9,6 +9,7 @@ SELECT
   CAST(COALESCE(SUM(CASE WHEN status = 'DISMISSED' THEN 1 ELSE 0 END), 0) AS INTEGER) AS dismissed_count,
   SUM(CASE WHEN status = 'PENDING' THEN estimated_volume_reduction_per_hour ELSE 0 END) AS estimated_volume_per_hour,
   SUM(CASE WHEN status = 'PENDING' THEN estimated_bytes_reduction_per_hour ELSE 0 END) AS estimated_bytes_per_hour,
+  SUM(CASE WHEN status = 'PENDING' THEN estimated_cost_reduction_per_hour_usd ELSE 0 END) AS estimated_cost_per_hour,
   CASE MAX(CASE risk_level
     WHEN 'high' THEN 3
     WHEN 'medium' THEN 2