Show config apply result summary

internal/web/ui/templates/config_preview.html

@@ -102,6 +102,30 @@
 </div>
 {{end}}
 
+{{if and (eq .ResultTitle "应用候选配置结果") .ConfigStatus}}
+<div class="card">
+  <h2>应用结果摘要</h2>
+  <div class="row" style="margin-top:10px">
+    <div>
+      <div class="muted small">当前运行</div>
+      <div class="mono">{{if .ConfigStatus.Metadata.ConfigID}}{{.ConfigStatus.Metadata.ConfigID}} / {{if .ConfigStatus.Metadata.ConfigVersion}}{{.ConfigStatus.Metadata.ConfigVersion}}{{else}}未标记{{end}}{{else}}未标记{{end}}</div>
+    </div>
+    <div>
+      <div class="muted small">last_good</div>
+      <div class="mono">{{if and .ConfigStatus.LastGood .ConfigStatus.LastGood.Exists .ConfigStatus.LastGood.Metadata.ConfigID}}{{.ConfigStatus.LastGood.Metadata.ConfigID}} / {{if .ConfigStatus.LastGood.Metadata.ConfigVersion}}{{.ConfigStatus.LastGood.Metadata.ConfigVersion}}{{else}}未标记{{end}}{{else}}-{{end}}</div>
+    </div>
+    <div>
+      <div class="muted small">candidate</div>
+      <div>{{if and .ConfigStatus.Candidate .ConfigStatus.Candidate.Exists}}<span class="pill">仍存在</span>{{else}}<span class="pill ok">已清空</span>{{end}}</div>
+    </div>
+    <div>
+      <div class="muted small">media-server</div>
+      <div>{{if .ConfigStatus.MediaServer.Running}}<span class="pill ok">运行中</span>{{else}}<span class="pill bad">未运行</span>{{end}}</div>
+    </div>
+  </div>
+</div>
+{{end}}
+
 {{if .RawText}}
 <div class="card">
   <h2>{{if .ResultTitle}}{{.ResultTitle}}{{else}}执行结果{{end}}</h2>

internal/web/ui_test.go

@@ -505,6 +505,71 @@ func TestUI_ConfigPreviewCollapsesJSONAfterActionResult(t *testing.T) {
 	}
 }
 
+func TestUI_ConfigPreviewShowsApplySummaryAfterApplyResult(t *testing.T) {
+	ui := newTestUI(t)
+	req := httptest.NewRequest(http.MethodGet, "/ui/devices/edge-01/config-preview", nil)
+	rr := httptest.NewRecorder()
+
+	ui.render(rr, req, "config_preview", PageData{
+		Title:            "配置预览",
+		Device:           &models.Device{DeviceID: "edge-01", DeviceName: "入口识别节点", IP: "127.0.0.1", AgentPort: 9100},
+		SelectedTemplate: "workshop_face_shoe_alarm",
+		SelectedProfile:  "local_3588_test",
+		SelectedOverlays: []string{"face_debug"},
+		SelectedConfigID: "preview_edge-01",
+		ConfigPreview: &service.ConfigPreviewResult{
+			JSON: `{"templates":{"tpl":{"nodes":[],"edges":[]}},"instances":[],"metadata":{"config_id":"preview_edge-01","config_version":"v2"}}`,
+			Metadata: map[string]any{
+				"config_id":      "preview_edge-01",
+				"config_version": "v2",
+			},
+			Size: 64,
+		},
+		ConfigStatus: &ConfigStatusView{
+			OK: true,
+			Metadata: ConfigStatusMetadata{
+				ConfigID:      "preview_edge-01",
+				ConfigVersion: "v2",
+			},
+			Candidate: &ConfigStatusLastGoodFile{
+				Exists: false,
+				Path:   "/opt/rk3588-media-server/etc/media-server.json.candidate.json",
+			},
+			LastGood: &ConfigStatusLastGoodFile{
+				Exists: true,
+				Path:   "/opt/rk3588-media-server/etc/media-server.json.last_good.json",
+				Metadata: ConfigStatusMetadata{
+					ConfigID:      "local_3588_face_debug",
+					ConfigVersion: "20260419.120246",
+				},
+			},
+			MediaServer: ConfigStatusMediaServer{
+				Running: true,
+				PID:     1810489,
+			},
+		},
+		ResultTitle: "应用候选配置结果",
+		RawText:     `{"ok":true}`,
+	})
+
+	body := rr.Body.String()
+	for _, want := range []string{
+		"应用结果摘要",
+		"当前运行",
+		"preview_edge-01 / v2",
+		"last_good",
+		"local_3588_face_debug / 20260419.120246",
+		"candidate",
+		"已清空",
+		"media-server",
+		"运行中",
+	} {
+		if !strings.Contains(body, want) {
+			t.Fatalf("expected apply summary HTML to contain %q, got:\n%s", want, body)
+		}
+	}
+}
+
 func TestUI_ModelDeploymentPageRendersDeviceActions(t *testing.T) {
 	ui := newTestUI(t)
 	req := httptest.NewRequest(http.MethodGet, "/ui/models", nil)