fix: add seedance vendor rule and improve vendor_id auto-mapping for existing records

model/pricing_default.go

@@ -32,6 +32,7 @@ var defaultVendorRules = map[string]string{
 	"grok":     "xAI",
 	"llama":    "Meta",
 	"doubao":   "字节跳动",
+	"seedance": "字节跳动",
 	"kling":    "快手",
 	"jimeng":   "即梦",
 	"vidu":     "Vidu",
@@ -71,9 +72,13 @@ var defaultVendorIcons = map[string]string{
 func initDefaultVendorMapping(metaMap map[string]*Model, vendorMap map[int]*Vendor, enableAbilities []AbilityWithChannel) {
 	for _, ability := range enableAbilities {
 		modelName := ability.Model
-		if _, exists := metaMap[modelName]; exists {
+		if existing, exists := metaMap[modelName]; exists {
+			// 已有记录但 vendor_id 已赋值 → 跳过
+			if existing.VendorID != 0 {
 				continue
 			}
+			// vendor_id=0 → 继续尝试匹配（修复已有 DB 记录但缺供应商的场景）
+		}
 
 		// 匹配供应商
 		vendorID := 0
@@ -85,7 +90,15 @@ func initDefaultVendorMapping(metaMap map[string]*Model, vendorMap map[int]*Vend
 			}
 		}
 
-		// 创建模型元数据
+		if vendorID == 0 {
+			// 仍未匹配到供应商 → 跳过（不给未匹配的模型写入 vendor_id=0 覆盖已有记录）
+			continue
+		}
+
+		// 写入或更新供应商 ID
+		if existing, exists := metaMap[modelName]; exists {
+			existing.VendorID = vendorID
+		} else {
 			metaMap[modelName] = &Model{
 				ModelName: modelName,
 				VendorID:  vendorID,
@@ -94,6 +107,7 @@ func initDefaultVendorMapping(metaMap map[string]*Model, vendorMap map[int]*Vend
 			}
 		}
 	}
+}
 
 // 查找或创建供应商
 func getOrCreateVendor(vendorName string, vendorMap map[int]*Vendor) int {

service/model_meta_infer.go

@@ -324,6 +324,7 @@ var vendorKeywordAliases = []struct {
 	{"moonshot", []string{"moonshot"}},
 	{"kimi", []string{"moonshot"}},
 	{"doubao", []string{"bytedance", "volcengine", "volcano"}},
+	{"seedance", []string{"bytedance", "volcengine", "volcano", "doubao"}},
 	{"ernie", []string{"baidu"}},
 	{"wenxin", []string{"baidu"}},
 	{"hunyuan", []string{"tencent"}},