Add clarifying comments to bundler configuration logic

Co-authored-by: Saadnajmi <[email protected]>

Author: Copilot

packages/react-native/React/CoreModules/RCTDevMenu.mm

@@ -442,18 +442,21 @@ - (void)setDefaultJSBundle
                                         NSString *port = portTextField.stringValue;
                                         NSString *bundleRoot = entrypointTextField.stringValue;
 
+                                        // If both IP and port are empty, reset to default
                                         if (ipAddress.length == 0 && port.length == 0) {
                                           [weakSelf setDefaultJSBundle];
                                           return;
                                         }
 
+                                        // Parse and validate port number
                                         NSNumberFormatter *formatter = [NSNumberFormatter new];
                                         formatter.numberStyle = NSNumberFormatterDecimalStyle;
                                         NSNumber *portNumber = [formatter numberFromString:port];
                                         if (portNumber == nil) {
                                           portNumber = [NSNumber numberWithInt:RCT_METRO_PORT];
                                         }
 
+                                        // Set the bundler location - matches iOS behavior
                                         [RCTBundleURLProvider sharedSettings].jsLocation =
                                             [NSString stringWithFormat:@"%@:%d", ipAddress, portNumber.intValue];