Change hostServer column type from String to Int in server model and migration

prisma/migrations/20250418101029_host_server_string_int/migration.sql

@@ -0,0 +1,9 @@
+/*
+  Warnings:
+
+  - The `hostServer` column on the `server` table would be dropped and recreated. This will lead to data loss if there is data in the column.
+
+*/
+-- AlterTable
+ALTER TABLE "server" DROP COLUMN "hostServer",
+ADD COLUMN     "hostServer" INTEGER;