fix(channel): 修复前台自定义渠道模型配置抽屉空白死锁，并在启动时保护管理员能力配置 (#360)

Co-authored-by: Danborad <danborad@github.com>

backend/internal/service/channel_models.go

@@ -296,6 +296,9 @@ func validateChannelModelTierCapabilities(tiers []model.ChannelModelPriceTier, r
 		if tier.VideoSeconds == 0 {
 			continue
 		}
+		if !videoDurationSupported(config.Video) {
+			continue
+		}
 		if config.Video.Duration.Selection == "enum" && !durationSupported[tier.VideoSeconds] {
 			return BadAuthRequest(fmt.Sprintf("价格档时长 %d 秒不在该视频模型支持范围内", tier.VideoSeconds))
 		}
@@ -742,30 +745,26 @@ func (s *Service) syncInitialChannelModels(channel *model.ModelChannel, names []
 		}
 		desired[name] = true
 		if item := byKey[name]; item != nil {
-			if !item.Enabled {
-				item.Enabled = true
-				item.PriceVersion++
-				if err := s.repo.SaveChannelModel(item); err != nil {
-					return err
-				}
-			}
 			continue
 		}
 		modelID, idErr := s.repo.NextPrefixedID("MODEL")
 		if idErr != nil {
 			return idErr
 		}
-		item := model.ChannelModel{ID: modelID, ChannelID: channel.ID, ModelKey: name, DisplayName: name, BillingMode: "fixed_request", Enabled: false, PriceVersion: 1}
+		item := model.ChannelModel{ID: modelID, ChannelID: channel.ID, ModelKey: name, DisplayName: name, BillingMode: "fixed_request", Enabled: false, PriceConfigured: false, UnitPriceMicrocredits: 0, PriceVersion: 1}
 		if err := s.repo.SaveChannelModel(&item); err != nil {
 			return err
 		}
 	}
 	for index := range existing {
-		if existing[index].Enabled && !desired[existing[index].ModelKey] {
+		if !desired[existing[index].ModelKey] {
+			changed := existing[index].Enabled
 			existing[index].Enabled = false
-			existing[index].PriceVersion++
-			if err := s.repo.SaveChannelModel(&existing[index]); err != nil {
-				return err
+			if changed {
+				existing[index].PriceVersion++
+				if err := s.repo.SaveChannelModel(&existing[index]); err != nil {
+					return err
+				}
 			}
 		}
 	}

backend/internal/service/model_capability.go

@@ -68,6 +68,7 @@ type ParameterSupport struct {
 type VideoCapabilityConfig struct {
 	References        VideoReferenceConfig `json:"references"`
 	Duration          VideoDurationConfig  `json:"duration"`
+	DurationSupported *bool                `json:"durationSupported,omitempty"`
 	Ratios            []string             `json:"ratios"`
 	DefaultRatio      string               `json:"defaultRatio"`
 	Resolutions       []string             `json:"resolutions"`
@@ -109,6 +110,10 @@ func DefaultModelCapabilityConfig(protocol string) *ModelCapabilityConfig {
 	return DefaultModelCapabilityConfigForModel(protocol, "")
 }
 
+func videoDurationSupported(value *VideoCapabilityConfig) bool {
+	return value == nil || value.DurationSupported == nil || *value.DurationSupported
+}
+
 func DefaultImageCapabilityConfig(protocol string, modelName string) *ImageCapabilityConfig {
 	image := &ImageCapabilityConfig{
 		References:            ImageReferenceConfig{PromptMaxChars: 32000, MaxImages: 16, MaxImageBytes: 30 * 1024 * 1024, MaskSupported: true},