feat(ECR-009): Ops-D order filters, plan display prices, refund status

LOOP-RUN-002 sample: admin order multi-filter, membership display
price catalog, read-only refund_status. No real payment or RBAC.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/api/internal/service/admin/service.go

@@ -168,7 +168,11 @@ func (s *Service) GetUser(ctx context.Context, userID uuid.UUID) (*UserDetail, e
 	if err != nil {
 		return nil, err
 	}
-	orders, err := s.Repo.ListOrders(ctx, &userID, 10, 0)
+	orders, err := s.Repo.ListOrders(ctx, repository.OrderListFilter{
+		UserID: &userID,
+		Limit:  10,
+		Offset: 0,
+	})
 	if err != nil {
 		return nil, err
 	}
@@ -231,9 +235,23 @@ func (s *Service) GrantAskQuota(ctx context.Context, adminID, userID uuid.UUID,
 	return s.Repo.GrantAskQuotaWithAudit(ctx, adminID, userID, delta, meta)
 }
 
-// ListOrders lists commerce orders.
-func (s *Service) ListOrders(ctx context.Context, limit, offset int) ([]repository.OrderListItem, error) {
-	return s.Repo.ListOrders(ctx, nil, limit, offset)
+// ListOrders lists commerce orders with Ops-D filters.
+func (s *Service) ListOrders(ctx context.Context, f repository.OrderListFilter) ([]repository.OrderListItem, error) {
+	return s.Repo.ListOrders(ctx, f)
+}
+
+// ListPlanPrices returns membership catalog display prices.
+func (s *Service) ListPlanPrices(ctx context.Context) ([]repository.PlanPrice, error) {
+	return s.Repo.ListPlanPrices(ctx)
+}
+
+// UpsertPlanPrices updates display prices (not historical order amounts).
+func (s *Service) UpsertPlanPrices(ctx context.Context, adminID uuid.UUID, items []repository.PlanPrice) error {
+	if len(items) == 0 {
+		return ErrInvalidPlan
+	}
+	meta, _ := json.Marshal(map[string]any{"count": len(items)})
+	return s.Repo.UpsertPlanPricesWithAudit(ctx, adminID, items, meta)
 }
 
 // ListAuditLogs lists audit entries.
@@ -261,3 +279,30 @@ func newToken() (string, error) {
 	}
 	return "adm_" + hex.EncodeToString(b), nil
 }
+
+// OrderFilterFromQuery builds repository filter from HTTP query strings.
+func OrderFilterFromQuery(userID, status, kind, from, to string, limit, offset int) repository.OrderListFilter {
+	f := repository.OrderListFilter{
+		Status: status,
+		Kind:   kind,
+		Limit:  limit,
+		Offset: offset,
+	}
+	if userID != "" {
+		if id, err := uuid.Parse(userID); err == nil {
+			f.UserID = &id
+		}
+	}
+	if from != "" {
+		if t, err := time.Parse("2006-01-02", from); err == nil {
+			f.From = &t
+		}
+	}
+	if to != "" {
+		if t, err := time.Parse("2006-01-02", to); err == nil {
+			end := t.Add(24 * time.Hour)
+			f.To = &end
+		}
+	}
+	return f
+}