Pin Minecraft 26.3 and add safe Orion managed deployment support

dashboard/src/app/api/deployment/route.ts

@@ -0,0 +1,5 @@
+import { env } from "@/server/env";
+import { ok } from "@/server/api";
+
+export const dynamic = "force-dynamic";
+export function GET() { return ok({ managed: env.managed }); }