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`;

prisma/schema.prisma

@@ -52,7 +52,6 @@ model Customer {
   companyId String
   company   Company   @relation(fields: [companyId], references: [id], onDelete: Cascade)
   name      String
-  vatId     String?
   taxId     String?
   address   String
   zip       String