ADD: added dockerfile and docker-compose and k8s manifest

prisma/migrations/20260311212434_remove_vatid_from_customer/migration.sql

@@ -0,0 +1,8 @@
+/*
+  Warnings:
+
+  - You are about to drop the column `vatId` on the `customers` table. All the data in the column will be lost.
+
+*/
+-- AlterTable
+ALTER TABLE `customers` DROP COLUMN `vatId`;