feat: implement purchase receipt items management with create, update, find, and delete functionalities

feat: add purchase receipts management with create, update, find, and delete functionalities

feat: implement sales invoice items management with create, update, find, and delete functionalities

feat: add sales invoices management with create, update, find, and delete functionalities

feat: implement stock adjustments management with create, update, find, and delete functionalities

feat: add stock balance retrieval functionality

feat: implement stock movements management with create, update, find, and delete functionalities

prisma/migrations/20251208153603_apply_views/migration.sql

@@ -0,0 +1,9 @@
+/*
+  Warnings:
+
+  - Added the required column `avgCost` to the `Stock_Movements` table without a default value. This is not possible if the table is not empty.
+
+*/
+-- AlterTable
+ALTER TABLE `Stock_Movements` ADD COLUMN `avgCost` DECIMAL(10, 2) NOT NULL;
+