feat(*): 创作与运维 - 新增图片尺寸预设和系统性能面板并优化图片组动画

backend/internal/handler/admin_system_performance.go

@@ -0,0 +1,45 @@
+package handler
+
+import (
+	"net/http"
+
+	"infinite-canvas/backend/internal/service"
+
+	"github.com/gin-gonic/gin"
+)
+
+func RegisterAdminSystemPerformanceRoutes(r *gin.RouterGroup, svc *service.Service) {
+	r.GET("/admin/system-performance", func(c *gin.Context) {
+		actor, err := currentUser(c, svc)
+		if err != nil {
+			failService(c, err)
+			return
+		}
+		result, err := svc.AdminSystemPerformance(c.Request.Context(), actor)
+		if err != nil {
+			failService(c, err)
+			return
+		}
+		ok(c, result)
+	})
+
+	r.POST("/admin/system-performance/cache/clear", func(c *gin.Context) {
+		actor, err := currentUser(c, svc)
+		if err != nil {
+			failService(c, err)
+			return
+		}
+		c.Request.Body = http.MaxBytesReader(c.Writer, c.Request.Body, 4<<10)
+		var request service.AdminCacheClearRequest
+		if err := c.ShouldBindJSON(&request); err != nil {
+			failService(c, service.BadAuthRequest("缓存清理请求无效"))
+			return
+		}
+		result, err := svc.ClearAdminRuntimeCache(c.Request.Context(), actor, request)
+		if err != nil {
+			failService(c, err)
+			return
+		}
+		ok(c, result)
+	})
+}