导出任务取消：点击后立即置为「已取消」，后台下一个检查点停止并删除半成品文件

app/Console/Commands/RunAccountBillsExportTask.php

@@ -67,7 +67,6 @@ class RunAccountBillsExportTask extends Command
                 ));
                 $written++;
                 if ($written % 2000 === 0) {
-                    $task = $tasks->patch($task, ['status' => 'running', 'rows' => $written]);
                     // 用户在弹窗里点了「取消」：停止导出并删掉半成品文件。
                     $fresh = $tasks->find((int) $task['user_id'], (string) $task['token']);
                     if (! empty($fresh['cancel'])) {
@@ -78,6 +77,7 @@ class RunAccountBillsExportTask extends Command
 
                         return self::SUCCESS;
                     }
+                    $task = $tasks->patch($task, ['status' => 'running', 'rows' => $written]);
                 }
             }
             fclose($csv);

modules/EcommerceFinance/Http/Controllers/AccountBills.php

@@ -451,7 +451,13 @@ class AccountBills extends Controller
         $status = (string) ($task['status'] ?? '');
         abort_if(in_array($status, ['done', 'failed', 'cancelled'], true), 409, '该任务已结束，无需取消。');
 
-        $tasks->patch($task, ['cancel' => true]);
+        // 立刻显示「已取消」（排队中的任务没有进程去改状态，必须在这里定稿）；
+        // 运行中的任务会在下一个检查点停下并删掉半成品文件。
+        $tasks->patch($task, [
+            'cancel' => true,
+            'status' => 'cancelled',
+            'finished_at' => \Modules\EcommerceFinance\Services\AccountBillsExportTasks::beijingNow(),
+        ]);
 
         return response()->json(['status' => 'ok'], 200, ['Cache-Control' => 'private, no-store']);
     }