Harden gameplay timing and map loading

scripts/supervise.mjs

@@ -1,13 +1,16 @@
 import { spawn } from "node:child_process";
 import { existsSync } from "node:fs";
+import { validateRuntime } from "./runtime-config.mjs";
 if (existsSync(".env.local")) process.loadEnvFile(".env.local");
 const dev = process.argv[2] === "dev";
+const { workerHeap } = validateRuntime(process.env, { production: !dev });
 const children = [];
 let stopping = false;
 function run(args) {
   const c = spawn(process.execPath, args, {
     stdio: "inherit",
     env: process.env,
+    windowsHide: true,
   });
   children.push(c);
   c.on("exit", (code) => {
@@ -34,10 +37,9 @@ run([
   "--hostname",
   process.env.MINEGEO_HOST || "127.0.0.1",
 ]);
-const workerHeap = Number(process.env.MINEGEO_WORKER_HEAP_MB || 4096);
-if (!Number.isInteger(workerHeap) || workerHeap < 512 || workerHeap > 32768) {
-  console.error("MINEGEO_WORKER_HEAP_MB must be an integer between 512 and 32768.");
-  stop(1);
-} else {
-  run([`--max-old-space-size=${workerHeap}`, "--import", "tsx", "worker/main.ts"]);
-}
+run([
+  `--max-old-space-size=${workerHeap}`,
+  "--import",
+  "tsx",
+  "worker/main.ts",
+]);