feat: add endpoints and logic for retrieving warehouse space usage and status distribution, including SQL queries, models, and service integration

internal/repositories/dashboard_repository.go

@@ -142,3 +142,27 @@ func GetTopExportedComponents(ctx context.Context, queries *db.Queries, startDat
 	}
 	return items, nil
 }
+
+func GetStatusDistribution(ctx context.Context, queries *db.Queries, warehouseID pgtype.Int8) ([]models.StatusDistributionItem, error) {
+	results, err := queries.GetStatusDistribution(ctx, warehouseID)
+	if err != nil {
+		return nil, err
+	}
+	items := make([]models.StatusDistributionItem, 0, len(results))
+	for _, r := range results {
+		items = append(items, mapper.ToDomainStatusDistribution(r))
+	}
+	return items, nil
+}
+
+func GetSpaceUsage(ctx context.Context, queries *db.Queries, warehouseID pgtype.Int8) ([]models.SpaceUsageItem, error) {
+	results, err := queries.GetSpaceUsage(ctx, warehouseID)
+	if err != nil {
+		return nil, err
+	}
+	items := make([]models.SpaceUsageItem, 0, len(results))
+	for _, r := range results {
+		items = append(items, mapper.ToDomainSpaceUsage(r))
+	}
+	return items, nil
+}