fix: 模型列表仅显示已启用渠道中的模型

server/internal/api/user.go

@@ -49,15 +49,22 @@ func (h *Handler) todayUsage(c *gin.Context, userID uint64) gin.H {
 }
 
 // UserModels GET /api/v1/user/models — 控制台可用模型列表（无需 API Key）。
+// 仅返回启用的模型且至少绑定到一个启用且健康的渠道，与 /v1/models 口径一致。
 func (h *Handler) UserModels(c *gin.Context) {
-	var ms []store.Model
-	if err := h.a.DB.Where("enabled = ?", true).Order("sort ASC, id ASC").Find(&ms).Error; err != nil {
+	var names []string
+	if err := h.a.DB.Table("models").
+		Joins("JOIN channel_model_bindings ON channel_model_bindings.model_id = models.id").
+		Joins("JOIN channels ON channels.id = channel_model_bindings.channel_id").
+		Where("models.enabled = ? AND channels.enabled = ? AND channels.health_status = ?",
+			true, true, store.ChannelHealthHealthy).
+		Distinct("models.name").
+		Order("models.sort ASC, models.id ASC").
+		Pluck("models.name", &names).Error; err != nil {
 		resp.Fail(c, http.StatusInternalServerError, "failed to load models")
 		return
 	}
-	out := make([]string, 0, len(ms))
-	for _, m := range ms {
-		out = append(out, m.Name)
+	if names == nil {
+		names = []string{}
 	}
-	resp.OK(c, gin.H{"items": out})
+	resp.OK(c, gin.H{"items": names})
 }

server/internal/channel/channel.go

@@ -87,6 +87,20 @@ func (s *Service) loadBound(bindings []store.ChannelModelBinding) []Candidate {
 	return out
 }
 
+// AvailableModelIDs 返回对外可见的模型 ID：启用的模型且至少绑定到一个启用且健康的渠道。
+// 与 Candidates 的过滤口径一致（enabled + health_status=healthy），避免暴露绑定到已停用渠道的模型。
+func (s *Service) AvailableModelIDs() []uint64 {
+	var ids []uint64
+	s.db.Model(&store.ChannelModelBinding{}).
+		Joins("JOIN channels ON channels.id = channel_model_bindings.channel_id").
+		Joins("JOIN models ON models.id = channel_model_bindings.model_id").
+		Where("channels.enabled = ? AND channels.health_status = ?", true, store.ChannelHealthHealthy).
+		Where("models.enabled = ?", true).
+		Distinct("channel_model_bindings.model_id").
+		Pluck("channel_model_bindings.model_id", &ids)
+	return ids
+}
+
 // Pick 按权重加权随机选一个候选渠道（负载均衡）。
 func (s *Service) Pick(cands []Candidate) *store.Channel {
 	if len(cands) == 0 {

server/internal/proxy/gateway.go

@@ -207,10 +207,15 @@ func (g *Gateway) Handle(c *gin.Context) {
 	}
 }
 
-// models GET /v1/models：返回启用的全局模型（OpenAI 风格）。
+// models GET /v1/models：返回对外可见的模型（启用且至少绑定到一个启用且健康的渠道；OpenAI 风格）。
 func (g *Gateway) models(c *gin.Context) {
+	ids := g.ch.AvailableModelIDs()
+	if len(ids) == 0 {
+		c.JSON(http.StatusOK, gin.H{"object": "list", "data": []gin.H{}})
+		return
+	}
 	var ms []store.Model
-	if err := g.db.Where("enabled = ?", true).Order("sort ASC, id ASC").Find(&ms).Error; err != nil {
+	if err := g.db.Where("id IN ? AND enabled = ?", ids, true).Order("sort ASC, id ASC").Find(&ms).Error; err != nil {
 		apiError(c, http.StatusInternalServerError, "internal_error", "failed to load models")
 		return
 	}