feat: 管理端网站监控，浏览量写入独立 monitor.db

请求日志按日 JSONL；page_views 不进主库，避免统计数据撑大 jiang13.db。

Co-authored-by: Cursor <cursoragent@cursor.com>

handler/handlers.go

@@ -29,6 +29,7 @@ type Handlers struct {
 	Report          *service.ReportService
 	Backup          *service.BackupService
 	Community       *service.CommunityService
+	Monitor         *service.MonitorService
 	Filter          *service.SensitiveFilter
 	Limiter         *service.RateLimiter
 	Settings        *service.ForumSettingsService