feat:FCM 에러 토큰 전체삭제 버튼 추가

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

routes/web.php

@@ -672,6 +672,7 @@
         Route::get('/tokens/stats', [FcmController::class, 'tokenStats'])->name('tokens.stats');
         Route::post('/tokens/{id}/toggle', [FcmController::class, 'toggleToken'])->name('tokens.toggle');
         Route::delete('/tokens/{id}', [FcmController::class, 'deleteToken'])->name('tokens.delete');
+        Route::delete('/tokens-error/bulk', [FcmController::class, 'deleteErrorTokens'])->name('tokens.deleteError');
 
         // 테스트 발송
         Route::get('/send', [FcmController::class, 'send'])->name('send');