refactor: restructure suppliers module and update DTOs

- Removed old supplier DTOs and controller, replacing them with new implementations.
- Introduced new CreateSupplierDto and UpdateSupplierDto in the index directory.
- Updated SuppliersController to handle new routes and methods.
- Implemented SuppliersService with updated logic for creating, finding, updating, and removing suppliers.
- Added new invoices module with corresponding controller and service for handling invoice-related operations.
- Created new DTOs for handling receipt payments and updated the service to manage payment creation and retrieval.
- Updated Prisma migrations to reflect changes in the database schema, including dropping unnecessary columns.

prisma/schema/inventory.prisma

@@ -24,10 +24,9 @@ model InventoryBankAccount {
   inventoryId   Int
   bankAccountId Int
 
-  inventory               Inventory                 @relation(fields: [inventoryId], references: [id])
-  bankAccount             BankAccount               @relation(fields: [bankAccountId], references: [id])
-  posAccounts             PosAccount[]
-  purchaseReceiptPayments PurchaseReceiptPayments[]
+  inventory   Inventory    @relation(fields: [inventoryId], references: [id])
+  bankAccount BankAccount  @relation(fields: [bankAccountId], references: [id])
+  posAccounts PosAccount[]
 
   @@id([inventoryId, bankAccountId])
   @@index([bankAccountId])