feat: add a service for periodic cleanup of error accounts based on configuration.

frontend/src/components/LiveLogViewer.tsx

@@ -131,8 +131,22 @@ export default function LiveLogViewer({
         }
     }
 
-    const handleClear = () => {
-        setLogs([])
+    const handleClear = async () => {
+        if (!confirm('确定要清空所有日志吗？此操作不可撤销。')) {
+            return
+        }
+        try {
+            const res = await fetch('/api/logs/clear', { method: 'POST' })
+            const data = await res.json()
+            if (data.code === 0) {
+                setLogs([])
+                pausedLogsRef.current = []
+            } else {
+                alert('清空日志失败: ' + (data.message || '未知错误'))
+            }
+        } catch (e) {
+            alert('清空日志失败: ' + (e instanceof Error ? e.message : '网络错误'))
+        }
     }
 
     return (
@@ -161,8 +175,8 @@ export default function LiveLogViewer({
                     </button>
                     <button
                         onClick={handleClear}
-                        className="p-1.5 rounded-lg bg-slate-700 text-slate-400 hover:bg-slate-600 transition-colors"
-                        title="清空"
+                        className="p-1.5 rounded-lg bg-red-500/20 text-red-400 hover:bg-red-500/30 transition-colors"
+                        title="清空所有日志"
                     >
                         <Trash2 className="h-3.5 w-3.5" />
                     </button>