feat: implement correction and original send functionality for Nama provider

- Added new DTOs for correction requests and responses in `nama-provider.dto.ts`.
- Updated `nama-provider.adapter.ts` to include `originalSend` and `correctionSend` methods.
- Enhanced `nama-provider.util.ts` with mapping functions for correction requests.
- Created operational guidelines for agents in `AGENT.md`.
- Updated Prisma migrations to support new invoice types and relationships.
- Introduced new service and DTO for creating sales invoices in `sale-invoice-create.service.ts` and `sale-invoice-create.dto.ts`.
- Added utility for handling Prisma errors in `prisma-error.util.ts`.

prisma/migrations/20260505072900_update_invoice_to_ref/migration.sql

@@ -0,0 +1,24 @@
+/*
+  Warnings:
+
+  - You are about to drop the column `type` on the `sale_invoice_tsp_attempts` table. All the data in the column will be lost.
+  - A unique constraint covering the columns `[ref_id]` on the table `sales_invoices` will be added. If there are existing duplicate values, this will fail.
+  - Added the required column `type` to the `sales_invoices` table without a default value. This is not possible if the table is not empty.
+
+*/
+-- AlterTable
+ALTER TABLE `sale_invoice_tsp_attempts` DROP COLUMN `type`;
+
+-- AlterTable
+ALTER TABLE `sales_invoices` ADD COLUMN `main_id` VARCHAR(50) NULL,
+    ADD COLUMN `ref_id` VARCHAR(50) NULL,
+    ADD COLUMN `type` ENUM('ORIGINAL', 'CORRECTION', 'REVOKE', 'RETURN') NOT NULL;
+
+-- CreateIndex
+CREATE UNIQUE INDEX `sales_invoices_ref_id_key` ON `sales_invoices`(`ref_id`);
+
+-- CreateIndex
+CREATE INDEX `sales_invoices_ref_id_idx` ON `sales_invoices`(`ref_id`);
+
+-- AddForeignKey
+ALTER TABLE `sales_invoices` ADD CONSTRAINT `sales_invoices_ref_id_fkey` FOREIGN KEY (`ref_id`) REFERENCES `sales_invoices`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;