perf(fmt): share compile cache with workers

Author: chenjiahan

packages/rstack/bin/rs.js

@@ -1,12 +1,15 @@
 #!/usr/bin/env node
 import nodeModule from 'node:module';
 
-// enable on-disk code caching of all modules loaded by Node.js
+// enable on-disk code caching and share its directory with child workers
 // requires Nodejs >= 22.8.0
 const { enableCompileCache } = nodeModule;
 if (enableCompileCache) {
   try {
-    enableCompileCache();
+    const { directory } = enableCompileCache();
+    if (directory) {
+      process.env.NODE_COMPILE_CACHE = directory;
+    }
   } catch {
     // ignore errors
   }