feat: add Baidu V2 channel support and improve model handling

model/ability.go

@@ -2,10 +2,13 @@ package model
 
 import (
 	"context"
-	"github.com/songquanpeng/one-api/common"
-	"gorm.io/gorm"
 	"sort"
 	"strings"
+
+	"gorm.io/gorm"
+
+	"github.com/songquanpeng/one-api/common"
+	"github.com/songquanpeng/one-api/common/utils"
 )
 
 type Ability struct {
@@ -49,6 +52,7 @@ func GetRandomSatisfiedChannel(group string, model string, ignoreFirstPriority b
 
 func (channel *Channel) AddAbilities() error {
 	models_ := strings.Split(channel.Models, ",")
+	models_ = utils.DeDuplication(models_)
 	groups_ := strings.Split(channel.Group, ",")
 	abilities := make([]Ability, 0, len(models_))
 	for _, model := range models_ {