refactor: enhance chalk loading mechanism with global caching

packages/contentstack-utilities/src/chalk.ts

@@ -1,17 +1,30 @@
 /**
  * Chalk 5 is ESM-only. We load it via dynamic import and cache for use in CommonJS.
+ *
+ * More than one physical copy of this package can load in one process (e.g. pnpm).
+ * Cache on globalThis via Symbol.for so loadChalk() from any copy warms getChalk() for all.
  */
-let chalkInstance: typeof import('chalk').default | null = null;
-
 export type ChalkInstance = typeof import('chalk').default;
 
+const chalkGlobal = Symbol.for('@contentstack/cli-utilities/chalk');
+
+function readCached(): ChalkInstance | undefined {
+  return (globalThis as unknown as Record<symbol, ChalkInstance | undefined>)[chalkGlobal];
+}
+
+function writeCached(chalkInstance: ChalkInstance): void {
+  (globalThis as unknown as Record<symbol, ChalkInstance>)[chalkGlobal] = chalkInstance;
+}
+
 /**
  * Load chalk (ESM) and cache it. Call this once during CLI init before any chalk usage.
  */
 export async function loadChalk(): Promise<ChalkInstance> {
+  let chalkInstance = readCached();
   if (!chalkInstance) {
     const chalkModule = await import('chalk');
     chalkInstance = chalkModule.default;
+    writeCached(chalkInstance);
   }
   return chalkInstance;
 }
@@ -20,6 +33,7 @@ export async function loadChalk(): Promise<ChalkInstance> {
  * Get the cached chalk instance. Must call loadChalk() first (e.g. in init hook).
  */
 export function getChalk(): ChalkInstance {
+  const chalkInstance = readCached();
   if (!chalkInstance) {
     throw new Error('Chalk not loaded. Ensure loadChalk() is called during init (e.g. in utils-init hook).');
   }