feat: add TenantLedger model and query generation

- Introduced TenantLedger model with fields for managing tenant transactions, including ID, TenantID, UserID, OrderID, transaction Type, Amount, and balance details.
- Implemented CRUD operations for TenantLedger with methods for Create, Update, Delete, and Reload.
- Generated query methods for TenantLedger to facilitate database interactions, including filtering, pagination, and aggregation functions.
- Established relationships with Order model for foreign key references.

backend/app/services/services.gen.go

@@ -9,6 +9,8 @@ var _db *gorm.DB
 // exported CamelCase Services
 var (
 	Content *content
+	Ledger  *ledger
+	Order   *order
 	Tenant  *tenant
 	Test    *test
 	User    *user
@@ -19,6 +21,8 @@ type services struct {
 	db *gorm.DB
 	// define Services
 	content *content
+	ledger  *ledger
+	order   *order
 	tenant  *tenant
 	test    *test
 	user    *user
@@ -29,6 +33,8 @@ func (svc *services) Prepare() error {
 
 	// set exported Services here
 	Content = svc.content
+	Ledger = svc.ledger
+	Order = svc.order
 	Tenant = svc.tenant
 	Test = svc.test
 	User = svc.user