feat(platform): Agent 能力 - 扩展画布读取与模型路由能力

backend/internal/platform/feature_availability.go

@@ -22,6 +22,7 @@ const (
 	FeatureFrontendModels        = "frontendModels"
 	FeaturePluginCenter          = "pluginCenter"
 	FeatureSystemPlugins         = "systemPluginsVisibleToUsers"
+	FeatureInspirationSources    = "inspirationSourcesVisible"
 	FeatureTimelineTranscription = "timelineTranscription"
 )
 
@@ -34,6 +35,7 @@ type FeatureAvailability struct {
 	FrontendModelsEnabled        bool `json:"frontendModelsEnabled"`
 	PluginCenterEnabled          bool `json:"pluginCenterEnabled"`
 	SystemPluginsVisibleToUsers  bool `json:"systemPluginsVisibleToUsers"`
+	InspirationSourcesVisible    bool `json:"inspirationSourcesVisible"`
 	TimelineTranscriptionEnabled bool `json:"timelineTranscriptionEnabled"`
 }
 
@@ -55,6 +57,7 @@ func DefaultFeatureAvailability() FeatureAvailability {
 		FrontendModelsEnabled:        false,
 		PluginCenterEnabled:          true,
 		SystemPluginsVisibleToUsers:  true,
+		InspirationSourcesVisible:    true,
 		TimelineTranscriptionEnabled: true,
 	}
 }
@@ -119,6 +122,8 @@ func (s *Service) FeatureEnabled(feature string) (bool, error) {
 		return value.PluginCenterEnabled, nil
 	case FeatureSystemPlugins:
 		return value.SystemPluginsVisibleToUsers, nil
+	case FeatureInspirationSources:
+		return value.InspirationSourcesVisible, nil
 	case FeatureTimelineTranscription:
 		return value.TimelineTranscriptionEnabled, nil
 	default:
@@ -149,6 +154,8 @@ func (s *Service) RequireFeature(feature string) error {
 		return kernel.Forbidden("插件中心暂未开放")
 	case FeatureSystemPlugins:
 		return kernel.Forbidden("系统插件暂未向普通用户展示")
+	case FeatureInspirationSources:
+		return kernel.Forbidden("素材来源说明暂未开放")
 	case FeatureTimelineTranscription:
 		return kernel.Forbidden("字幕转写暂未开放")
 	default: