feat: support baidu ernie bot ai model (#1024)

Co-authored-by: Kent Dong <ch3cho@qq.com>

plugins/wasm-go/extensions/ai-proxy/provider/provider.go

@@ -25,6 +25,7 @@ const (
 	providerTypeDeepSeek = "deepseek"
 	providerTypeZhipuAi  = "zhipuai"
 	providerTypeOllama   = "ollama"
+	providerTypeBaidu    = "baidu"
 	providerTypeHunyuan  = "hunyuan"
 
 	protocolOpenAI   = "openai"
@@ -34,6 +35,8 @@ const (
 	roleUser      = "user"
 	roleAssistant = "assistant"
 
+	finishReasonStop = "stop"
+
 	ctxKeyIncrementalStreaming = "incrementalStreaming"
 	ctxKeyApiName              = "apiKey"
 	ctxKeyStreamingBody        = "streamingBody"
@@ -68,6 +71,7 @@ var (
 		providerTypeDeepSeek: &deepseekProviderInitializer{},
 		providerTypeZhipuAi:  &zhipuAiProviderInitializer{},
 		providerTypeOllama:   &ollamaProviderInitializer{},
+		providerTypeBaidu:    &baiduProviderInitializer{},
 		providerTypeHunyuan:  &hunyuanProviderInitializer{},
 	}
 )
@@ -98,7 +102,7 @@ type ResponseBodyHandler interface {
 
 type ProviderConfig struct {
 	// @Title zh-CN AI服务提供商
-	// @Description zh-CN AI服务提供商类型，目前支持的取值为："moonshot"、"qwen"、"openai"、"azure"、"baichuan"、"yi"、"zhipuai"、"ollama"
+	// @Description zh-CN AI服务提供商类型，目前支持的取值为："moonshot"、"qwen"、"openai"、"azure"、"baichuan"、"yi"、"zhipuai"、"ollama"、"baidu"
 	typ string `required:"true" yaml:"type" json:"type"`
 	// @Title zh-CN API Tokens
 	// @Description zh-CN 在请求AI服务时用于认证的API Token列表。不同的AI服务提供商可能有不同的名称。部分供应商只支持配置一个API Token（如Azure OpenAI）。