database: setup of prisma

prisma/migrations/20240317164602_update/migration.sql

@@ -0,0 +1,8 @@
+/*
+  Warnings:
+
+  - A unique constraint covering the columns `[name]` on the table `GameSystem` will be added. If there are existing duplicate values, this will fail.
+
+*/
+-- CreateIndex
+CREATE UNIQUE INDEX `GameSystem_name_key` ON `GameSystem`(`name`);