diff --git a/internal/service/auto_config.go b/internal/service/auto_config.go
index 984674f..10675e5 100644
--- a/internal/service/auto_config.go
+++ b/internal/service/auto_config.go
@@ -714,6 +714,15 @@ func injectIntegrationsIntoConfig(config map[string]any, preview *ConfigPreviewS
                 setDefault(extAPI, "token_json_path", "responseBody.token")
                 setDefault(extAPI, "token_cache_sec", float64(1200))
             }
+            // Always add agent alarm reporting (http action to local agent)
+            if _, ok := actions["http"]; !ok {
+                actions["http"] = map[string]any{
+                    "enable":  true,
+                    "url":     "http://127.0.0.1:9100/v1/alarms/report",
+                    "method":  "POST",
+                    "timeout_ms": 3000,
+                }
+            }
         }
     }
 }
diff --git a/internal/web/ui.go b/internal/web/ui.go
index 6aac45e..4696280 100644
--- a/internal/web/ui.go
+++ b/internal/web/ui.go
@@ -1265,11 +1265,22 @@ func (u *UI) actionConsoleSave(w http.ResponseWriter, r *http.Request) {
     devices := u.registry.GetDevices()
 
     // Step 1: collect form features per device.
+    // Only process devices listed in dirty_device_ids (client-side change detection).
+    dirtyIDs := strings.Split(strings.TrimSpace(r.FormValue("dirty_device_ids")), ",")
+    dirtySet := map[string]bool{}
+    for _, id := range dirtyIDs {
+        if id != "" {
+            dirtySet[id] = true
+        }
+    }
     formFeatures := map[string][]string{}
     for _, dev := range devices {
         if dev == nil || dev.DeviceID == "" {
             continue
         }
+        if len(dirtySet) > 0 && !dirtySet[dev.DeviceID] {
+            continue
+        }
         features := cleanFormList(r.Form["device_"+dev.DeviceID+"_feature"])
         if len(features) > 0 {
             formFeatures[dev.DeviceID] = features
diff --git a/internal/web/ui/templates/console.html b/internal/web/ui/templates/console.html
index bb5cf81..b03991b 100644
--- a/internal/web/ui/templates/console.html
+++ b/internal/web/ui/templates/console.html
@@ -24,7 +24,7 @@
 <form id="console-form" method="post" action="/console" style="display:contents">
 
 {{range $i, $cd := .ConsoleDevices}}
-<div class="console-device-row">
+<div class="console-device-row" data-device-id="{{$cd.Device.DeviceID}}">
   <div class="console-header">
     <span class="status-dot {{if $cd.Device.Online}}ok{{else}}bad{{end}}"></span>
     <span class="console-device-name">{{$cd.Device.DisplayName}}</span>