Fix Metro bundler refresh issue by preventing unnecessary file writes

- Only write auto-generated.d.ts when actual content changes
- Strip timestamp lines when comparing content to detect real changes
- Prevents Metro from refreshing when type content is unchanged
- Fixes flickering "Refreshing..." issue across all connected devices

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

lib/metro-ior-resolver.js

@@ -278,11 +278,26 @@ async function updateGlobalTypes() {
     fs.mkdirSync(typesDir, { recursive: true });
   }
 
+  // Only write if content has changed (compare without timestamp)
+  let shouldWrite = true;
+  if (fs.existsSync(globalTypesPath)) {
+    const existingContent = fs.readFileSync(globalTypesPath, 'utf-8');
+
+    // Remove timestamp lines for comparison
+    const stripTimestamp = (str) => str.replace(/ \* Generated at: .*\n/g, '').replace(/\/\/ Cached: .*\n/g, '');
+
+    if (stripTimestamp(existingContent) === stripTimestamp(content)) {
+      shouldWrite = false;
+      console.log(`[IOR Resolver] Type declarations unchanged, skipping write to prevent Metro refresh`);
+    }
+  }
+
+  if (shouldWrite) {
     // Write the file
     fs.writeFileSync(globalTypesPath, content, 'utf-8');
-  
     console.log(`[IOR Resolver] Updated auto-generated types: ${globalTypesPath}`);
   }
+}
 
 /**
  * Fetch remote component based on IOR

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@metatrom/ior-resolver",
-  "version": "1.0.0",
+  "version": "1.1.0-beta.2",
   "description": "Interoperable Object Reference (IOR) resolver for Metro bundler and Node.js with support for local and remote component fetching",
   "main": "index.js",
   "types": "index.d.ts",