feat(customers): enhance customer retrieval with filtering options

- Updated `findAll` method in `CustomersController` to accept filtering parameters.
- Implemented filtering logic in `CustomersService` to retrieve customers based on type and search query.
- Added `PosCustomerFilterDto` for query validation.
- Updated customer-related DTOs to make fields optional and added length validation where necessary.
- Modified customer-related logic in `sales-invoice-tsp.utils.ts` to accommodate new DTO structure.
- Added unique constraints to `customer_individuals` and `customer_legal` tables in the database migration.
- Removed commented-out code in `PosMiddleware` for cleaner codebase.
- Set default value for `is_default_guild_good` to false in `OwnedGoodsService`.

src/generated/prisma/internal/prismaNamespaceBrowser.ts

@@ -619,8 +619,6 @@ export const SalesInvoiceScalarFieldEnum = {
   id: 'id',
   code: 'code',
   total_amount: 'total_amount',
-  tax_amount: 'tax_amount',
-  discount_amount: 'discount_amount',
   invoice_number: 'invoice_number',
   invoice_date: 'invoice_date',
   type: 'type',
@@ -634,7 +632,9 @@ export const SalesInvoiceScalarFieldEnum = {
   customer_id: 'customer_id',
   consumer_account_id: 'consumer_account_id',
   pos_id: 'pos_id',
-  settlement_type: 'settlement_type'
+  settlement_type: 'settlement_type',
+  discount_amount: 'discount_amount',
+  tax_amount: 'tax_amount'
 } as const
 
 export type SalesInvoiceScalarFieldEnum = (typeof SalesInvoiceScalarFieldEnum)[keyof typeof SalesInvoiceScalarFieldEnum]
@@ -650,14 +650,15 @@ export const SalesInvoiceItemScalarFieldEnum = {
   unit_price: 'unit_price',
   total_amount: 'total_amount',
   created_at: 'created_at',
-  discount_amount: 'discount_amount',
-  tax_amount: 'tax_amount',
+  discount: 'discount',
   notes: 'notes',
   payload: 'payload',
   good_snapshot: 'good_snapshot',
   invoice_id: 'invoice_id',
   good_id: 'good_id',
-  service_id: 'service_id'
+  service_id: 'service_id',
+  discount_amount: 'discount_amount',
+  tax_amount: 'tax_amount'
 } as const
 
 export type SalesInvoiceItemScalarFieldEnum = (typeof SalesInvoiceItemScalarFieldEnum)[keyof typeof SalesInvoiceItemScalarFieldEnum]