feat: Add an AI-Proxy Wasm plugin (#921)

Co-authored-by: 澄潭 <zty98751@alibaba-inc.com>

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

@@ -0,0 +1,52 @@
+package config
+
+import (
+	"github.com/tidwall/gjson"
+
+	"github.com/alibaba/higress/plugins/wasm-go/extensions/ai-proxy/provider"
+)
+
+// @Name ai-proxy
+// @Category custom
+// @Phase UNSPECIFIED_PHASE
+// @Priority 0
+// @Title zh-CN AI代理
+// @Description zh-CN 通过AI助手提供智能对话服务
+// @IconUrl https://img.alicdn.com/imgextra/i1/O1CN018iKKih1iVx287RltL_!!6000000004419-2-tps-42-42.png
+// @Version 0.1.0
+//
+// @Contact.name CH3CHO
+// @Contact.url https://github.com/CH3CHO
+// @Contact.email ch3cho@qq.com
+//
+// @Example
+// { "provider": { "type": "qwen", "apiToken": "YOUR_DASHSCOPE_API_TOKEN", "modelMapping": { "*": "qwen-turbo" } } }
+// @End
+type PluginConfig struct {
+	// @Title zh-CN AI服务提供商配置
+	// @Description zh-CN AI服务提供商配置，包含API接口、模型和知识库文件等信息
+	providerConfig provider.ProviderConfig `required:"true" yaml:"provider"`
+
+	provider provider.Provider `yaml:"-"`
+}
+
+func (c *PluginConfig) FromJson(json gjson.Result) {
+	c.providerConfig.FromJson(json.Get("provider"))
+}
+
+func (c *PluginConfig) Validate() error {
+	if err := c.providerConfig.Validate(); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (c *PluginConfig) Complete() error {
+	var err error
+	c.provider, err = provider.CreateProvider(c.providerConfig)
+	return err
+}
+
+func (c *PluginConfig) GetProvider() provider.Provider {
+	return c.provider
+}