Update comment

Author: christocracy

ios/background_fetch/Sources/background_fetch/BackgroundFetchPlugin.m

@@ -33,9 +33,9 @@ -(BOOL)application:(UIApplication *)application performFetchWithCompletionHandle
     return YES;
 }
 
-// didFinishLaunching is handled automatically by TSBackgroundFetch +load
-// (v4.1+). Keep this call for backward compatibility with older native
-// versions where consumers must register BGTask handlers explicitly.
+// BGTask registration is handled automatically by TSBackgroundFetch +load,
+// which observes UIApplicationDidFinishLaunchingNotification directly.
+// This call is a no-op (guarded by `launched` flag) but kept for safety.
 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
     [[TSBackgroundFetch sharedInstance] didFinishLaunching];
     return YES;