Merge up/main

backend/internal/handler/admin/proxy_handler.go

@@ -51,6 +51,11 @@ func (h *ProxyHandler) List(c *gin.Context) {
 	protocol := c.Query("protocol")
 	status := c.Query("status")
 	search := c.Query("search")
+	// 标准化和验证 search 参数
+	search = strings.TrimSpace(search)
+	if len(search) > 100 {
+		search = search[:100]
+	}
 
 	proxies, total, err := h.adminService.ListProxiesWithAccountCount(c.Request.Context(), page, pageSize, protocol, status, search)
 	if err != nil {