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/monitor.go

@@ -0,0 +1,108 @@
+package handler
+
+import (
+	"net/http"
+	"strconv"
+
+	"git.iioio.com/freefire/jiang13-forum/service"
+	"github.com/gin-gonic/gin"
+)
+
+// APIAdminMonitorOverview 今日概览
+func (h *Handlers) APIAdminMonitorOverview(c *gin.Context) {
+	if h.Monitor == nil {
+		c.JSON(http.StatusOK, service.MonitorOverview{})
+		return
+	}
+	c.JSON(http.StatusOK, h.Monitor.OverviewToday())
+}
+
+// APIAdminMonitorGeo 地理分布
+func (h *Handlers) APIAdminMonitorGeo(c *gin.Context) {
+	if h.Monitor == nil {
+		c.JSON(http.StatusOK, service.MonitorGeoResult{
+			Countries: []service.MonitorGeoItem{},
+			Regions:   []service.MonitorRegionItem{},
+			Cities:    []service.MonitorCityItem{},
+			ASNs:      []service.MonitorASNItem{},
+		})
+		return
+	}
+	c.JSON(http.StatusOK, h.Monitor.GeoStats(c.Query("range")))
+}
+
+// APIAdminMonitorStats 维度排行
+func (h *Handlers) APIAdminMonitorStats(c *gin.Context) {
+	if h.Monitor == nil {
+		c.JSON(http.StatusOK, gin.H{"items": []service.MonitorStatItem{}})
+		return
+	}
+	items := h.Monitor.DimStats(c.Query("dim"), c.Query("range"))
+	c.JSON(http.StatusOK, gin.H{"dim": c.Query("dim"), "range": c.Query("range"), "items": items})
+}
+
+// APIAdminMonitorLogs 请求日志
+func (h *Handlers) APIAdminMonitorLogs(c *gin.Context) {
+	page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
+	size, _ := strconv.Atoi(c.DefaultQuery("size", "20"))
+	if h.Monitor == nil {
+		c.JSON(http.StatusOK, gin.H{"items": []service.MonitorLogItem{}, "total": 0, "page": page, "size": size})
+		return
+	}
+	items, total := h.Monitor.ListLogs(page, size, c.Query("method"), c.Query("path"), c.Query("status"), c.Query("ip"))
+	c.JSON(http.StatusOK, gin.H{"items": items, "total": total, "page": page, "size": size})
+}
+
+// APIAdminMonitorRealtime 实时
+func (h *Handlers) APIAdminMonitorRealtime(c *gin.Context) {
+	if h.Monitor == nil {
+		c.JSON(http.StatusOK, service.MonitorRealtime{HourlySeries: []service.MonitorRealtimePoint{}})
+		return
+	}
+	c.JSON(http.StatusOK, h.Monitor.Realtime())
+}
+
+// APIAdminGetMonitorSettings 读取监控设置
+func (h *Handlers) APIAdminGetMonitorSettings(c *gin.Context) {
+	cfg := h.Settings.MonitorConfig()
+	if h.Monitor != nil {
+		h.Monitor.EnrichGeoMeta(&cfg)
+	}
+	c.JSON(http.StatusOK, cfg)
+}
+
+// APIAdminUpdateMonitorSettings 更新监控设置
+func (h *Handlers) APIAdminUpdateMonitorSettings(c *gin.Context) {
+	var req service.MonitorConfig
+	if err := c.ShouldBindJSON(&req); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "参数错误"})
+		return
+	}
+	if err := h.Settings.UpdateMonitorConfig(req); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+	cfg := h.Settings.MonitorConfig()
+	if h.Monitor != nil {
+		h.Monitor.EnrichGeoMeta(&cfg)
+	}
+	c.JSON(http.StatusOK, gin.H{"message": "监控设置已保存", "monitor": cfg})
+}
+
+// APIMonitorPageview 前台 SPA 路由 pageview 信标（公开，受 monitor_enabled 控制）
+func (h *Handlers) APIMonitorPageview(c *gin.Context) {
+	if h.Monitor == nil || !h.Settings.MonitorEnabled() {
+		c.Status(http.StatusNoContent)
+		return
+	}
+	var req service.PageViewInput
+	if err := c.ShouldBindJSON(&req); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "参数错误"})
+		return
+	}
+	if err := h.Monitor.RecordPageView(c.Request, c.Request.RemoteAddr, req); err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "记录失败"})
+		return
+	}
+	c.Status(http.StatusNoContent)
+}