feat(models): add kind and models_meta snapshot

internal/api/handler.go

@@ -294,8 +294,25 @@ func (h *Handler) CreateModel(c *gin.Context) {
 		return
 	}
 
+	name := strings.TrimSpace(req.Name)
+	if name == "" {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "name required"})
+		return
+	}
+	kind := strings.ToLower(strings.TrimSpace(req.Kind))
+	if kind == "" {
+		kind = "chat"
+	}
+	switch kind {
+	case "chat", "embedding", "rerank", "other":
+	default:
+		c.JSON(http.StatusBadRequest, gin.H{"error": "invalid kind"})
+		return
+	}
+
 	modelReq := model.Model{
-		Name:               req.Name,
+		Name:               name,
+		Kind:               kind,
 		ContextWindow:      req.ContextWindow,
 		CostPerToken:       req.CostPerToken,
 		SupportsVision:     req.SupportsVision,
@@ -370,7 +387,27 @@ func (h *Handler) UpdateModel(c *gin.Context) {
 		return
 	}
 
-	existing.Name = req.Name
+	name := strings.TrimSpace(req.Name)
+	if name == "" {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "name required"})
+		return
+	}
+	kind := strings.ToLower(strings.TrimSpace(req.Kind))
+	if kind == "" {
+		kind = strings.ToLower(strings.TrimSpace(existing.Kind))
+	}
+	if kind == "" {
+		kind = "chat"
+	}
+	switch kind {
+	case "chat", "embedding", "rerank", "other":
+	default:
+		c.JSON(http.StatusBadRequest, gin.H{"error": "invalid kind"})
+		return
+	}
+
+	existing.Name = name
+	existing.Kind = kind
 	existing.ContextWindow = req.ContextWindow
 	existing.CostPerToken = req.CostPerToken
 	existing.SupportsVision = req.SupportsVision