add crc-32 package and rebuild package lock files

scripts/extract-elx/extract-elx.js

@@ -65,6 +65,27 @@ try {
   }
 }
 
+// Import crc-32 for file integrity checks (try multiple locations)
+let crc32;
+try {
+  // Try local node_modules first
+  crc32 = require('crc-32');
+} catch (err) {
+  try {
+    // Try to find npm global prefix and load from there
+    const npmPrefix = execSync('npm config get prefix', { encoding: 'utf-8' }).trim();
+    const globalCrc32 = join(npmPrefix, 'node_modules', 'crc-32');
+    crc32 = require(globalCrc32);
+  } catch (err2) {
+    console.error(
+      '\n❌ Missing dependency: crc-32\n' +
+      'Please install globally with: npm install -g crc-32\n' +
+      'Or locally in the current directory with: npm install crc-32\n'
+    );
+    process.exit(1);
+  }
+}
+
 // ============================================================================
 // CONFIGURATION
 // ============================================================================