fix: 全局移除关键功能对dev.Online的依赖，改用实际HTTP调用判断设备在线

internal/service/resource_management.go

@@ -271,7 +271,7 @@ func FetchAndBuildResourceBoard(agent *AgentClient, devices []*models.Device, st
     }()
 
     for _, device := range devices {
-        if device == nil || !device.Online {
+        if device == nil {
             continue
         }
         wg.Add(1)

internal/web/ui.go

@@ -1080,7 +1080,7 @@ func (u *UI) pageConsole(w http.ResponseWriter, r *http.Request) {
     deviceActiveFeatures := map[string]map[string]bool{}
     if u.agent != nil {
         for _, dev := range devices {
-            if dev == nil || !dev.Online || dev.DeviceID == "" {
+            if dev == nil || dev.DeviceID == "" {
                 continue
             }
             // Get capabilities
@@ -1128,7 +1128,7 @@ func (u *UI) pageConsole(w http.ResponseWriter, r *http.Request) {
     metrics := map[string]DeviceMetric{}
     if u.agent != nil {
         for _, dev := range devices {
-            if dev == nil || !dev.Online {
+            if dev == nil {
                 continue
             }
             body, code, err := u.agent.Do("GET", dev.IP, dev.AgentPort, "/v1/metrics", nil)
@@ -1856,7 +1856,7 @@ func (u *UI) deviceDetailPageData(dev *models.Device) PageData {
         }
     }
     // Load device model and resource status vs management standards.
-    if dev.Online && u.agent != nil {
+    if u.agent != nil {
         if items, err := service.FetchInstalledModelStatuses(u.agent, dev); err == nil {
             data.DeviceModelStatuses = items
         }