feat(timer): 新增日志每日自动清理定时任务

- New LogClean timer controller (site type, frequency 86400s)
- run_type defaults to auto, only one node cleans per day
- Cleans system_timer_log records older than 30 days

extend/base/common/command/timer/config.php

@@ -14,4 +14,11 @@ return [
         'frequency' => 600,
         'concurrency' => 1,
     ],
+    [
+        'name' => 'timer_log_clean',
+        'type' => 'site',
+        'target' => '/tools/timer.LogClean/do',
+        'frequency' => 86400,
+        'concurrency' => 1,
+    ],
 ];