perf(app): improve handle method performance

- Removed unnecessary return statement in handle method
- Removed commented out code

Author: ityaozm@gmail.com

app/Commands/CommitCommand.php

@@ -58,11 +58,9 @@ public function __construct(GeneratorManager $generatorManager)
     }
 
     /**
-     * @noinspection DebugFunctionUsageInspection
-     *
      * @psalm-suppress InvalidArgument
      */
-    public function handle(): int
+    public function handle(): void
     {
         $this->task('1. Generating commit message', function () use (&$message): void {
             // Ensure git is installed and the current directory is a git repository.
@@ -138,8 +136,6 @@ function ($attempts) use ($cachedDiff, $type): string {
         }, 'committing...'.PHP_EOL);
 
         $this->output->success('Successfully generated and committed message.');
-
-        return self::SUCCESS;
     }
 
     /**

app/Commands/ThanksCommand.php

@@ -31,7 +31,7 @@ final class ThanksCommand extends Command
      */
     protected $description = 'Thanks for using this tool.';
 
-    public function handle(): int
+    public function handle(): void
     {
         $wantsToSupport = $this->ask('Can you quickly <options=bold>star our GitHub repository</>? 🙏🏻', 'yes');
 
@@ -46,8 +46,6 @@ public function handle(): int
             sprintf('  - Star or contribute to <comment>%s</comment>:', config('app.name')),
             '    <options=bold>https://github.com/guanguans/ai-commit</>',
         ]);
-
-        return self::SUCCESS;
     }
 
     public function schedule(Schedule $schedule): void