feat: sync upstream pricing from pricing endpoint (#4452)

* feat: sync upstream pricing from pricing endpoint

* feat: sync upstream pricing with expression priority

* fix: add feedback while syncing upstream pricing

* fix: show loading state for empty upstream pricing sync

setting/ratio_setting/model_ratio.go

@@ -709,6 +709,18 @@ func GetCompletionRatioCopy() map[string]float64 {
 	return completionRatioMap.ReadAll()
 }
 
+func GetImageRatioCopy() map[string]float64 {
+	return imageRatioMap.ReadAll()
+}
+
+func GetAudioRatioCopy() map[string]float64 {
+	return audioRatioMap.ReadAll()
+}
+
+func GetAudioCompletionRatioCopy() map[string]float64 {
+	return audioCompletionRatioMap.ReadAll()
+}
+
 // 转换模型名，减少渠道必须配置各种带参数模型
 func FormatMatchingModelName(name string) string {