Add products and sales management modules with database schema and validation

- Introduced `ProductsModule` to manage product data, including read and write controllers.
- Created database migrations for the `products`, `sales_requests`, `sales_orders`, `sales_invoices`, and related tables, including constraints and unique indexes.
- Implemented validation for product fields such as code, name, unit, and brand with corresponding utility functions.
- Developed service and repository layers for handling product and sales data operations.
- Added unit tests for the products and sales services, repositories, and controllers to ensure functionality and correctness.
- Updated application module to include the new `ProductsModule` and related sales modules for better organization.

src/modules/sales/packing-slips/packing-slip.ts

@@ -0,0 +1,74 @@
+import { DateTime } from '../../../common/value-objects/date-time/date-time';
+import { Decimal } from '../../../common/value-objects/decimal/decimal';
+import { Status } from '../../../common/value-objects/status/status';
+
+export type PackingSlipLine = {
+  readonly id: string;
+  readonly productId: string;
+  readonly quantity: Decimal;
+  readonly price: Decimal;
+};
+
+export type PackingSlip = {
+  readonly id: string;
+  readonly code: string;
+  readonly salesOrderId: string | null;
+  readonly salesOrderNumber: string | null;
+  readonly date: DateTime;
+  readonly customerId: string;
+  readonly address: string;
+  readonly latitude: number | null;
+  readonly longitude: number | null;
+  readonly notes: string | null;
+  readonly products: readonly PackingSlipLine[];
+  readonly status: Status;
+  readonly createdAt: DateTime;
+  readonly updatedAt: DateTime;
+  readonly createdBy: string;
+  readonly updatedBy: string;
+};
+
+export type PackingSlipLineInput = {
+  readonly productId: string;
+  readonly quantity: Decimal;
+  readonly price: Decimal;
+};
+
+export type CreatePackingSlipInput = {
+  readonly code?: string;
+  readonly salesOrderId?: string | null;
+  readonly salesOrderNumber?: string | null;
+  readonly date: DateTime;
+  readonly customerId: string;
+  readonly address: string;
+  readonly latitude?: number | null;
+  readonly longitude?: number | null;
+  readonly notes?: string | null;
+  readonly products: readonly PackingSlipLineInput[];
+  readonly status?: Status;
+  readonly userId: string;
+};
+
+export type UpdatePackingSlipInput = {
+  readonly code?: string;
+  readonly salesOrderId?: string | null;
+  readonly salesOrderNumber?: string | null;
+  readonly date?: DateTime;
+  readonly customerId?: string;
+  readonly address?: string;
+  readonly latitude?: number | null;
+  readonly longitude?: number | null;
+  readonly notes?: string | null;
+  readonly products?: readonly PackingSlipLineInput[];
+  readonly userId: string;
+};
+
+export type ListPackingSlipsFilters = {
+  readonly code?: string;
+  readonly status?: string;
+  readonly customerId?: string;
+  readonly salesOrderId?: string;
+  readonly search?: string;
+  readonly limit: number;
+  readonly offset: number;
+};