feat(iap/apple): 实现苹果IAP非续期订阅功能

新增苹果IAP相关接口与逻辑，包括产品列表查询、交易绑定、状态查询和恢复购买功能。移除旧的IAP验证逻辑，重构订阅系统以支持苹果IAP交易记录存储和权益计算。

- 新增/pkg/iap/apple包处理JWS解析和产品映射
- 实现GET /products、POST /attach、POST /restore和GET /status接口
- 新增apple_iap_transactions表存储交易记录
- 更新文档说明配置方式和接口规范
- 移除旧的AppleIAP验证和通知处理逻辑

internal/types/types.go

@@ -72,18 +72,9 @@ type AppUserSubscbribeNode struct {
 }
 
 type AppleLoginCallbackRequest struct {
-    Code    string `form:"code"`
-    IDToken string `form:"id_token"`
-    State   string `form:"state"`
-}
-
-type IAPVerifyRequest struct {
-    OriginalTransactionId string `json:"original_transaction_id" validate:"required"`
-    SubscribeId           int64  `json:"subscribe_id" validate:"required"`
-}
-
-type IAPVerifyResponse struct {
-    OrderNo string `json:"order_no"`
+	Code    string `form:"code"`
+	IDToken string `form:"id_token"`
+	State   string `form:"state"`
 }
 
 type Application struct {
@@ -2853,3 +2844,38 @@ type VmessProtocol struct {
 	Network   string `json:"network"`
 	Transport string `json:"transport"`
 }
+
+type AppleProduct struct {
+	ProductId    string `json:"product_id"`
+	Description  string `json:"description"`
+	PriceText    string `json:"price_text"`
+	DurationDays int64  `json:"duration_days"`
+	Tier         string `json:"tier"`
+	SubscribeId  int64  `json:"subscribe_id"`
+}
+
+type GetAppleProductsResponse struct {
+	List []AppleProduct `json:"list"`
+}
+
+type AttachAppleTransactionRequest struct {
+	SignedTransactionJWS string `json:"signed_transaction_jws" validate:"required"`
+	DurationDays         int64  `json:"duration_days,omitempty"`
+	Tier                 string `json:"tier,omitempty"`
+	SubscribeId          int64  `json:"subscribe_id,omitempty"`
+}
+
+type AttachAppleTransactionResponse struct {
+	ExpiresAt int64  `json:"expires_at"`
+	Tier      string `json:"tier"`
+}
+
+type RestoreAppleTransactionsRequest struct {
+	Transactions []string `json:"transactions" validate:"required"`
+}
+
+type GetAppleStatusResponse struct {
+	Active    bool   `json:"active"`
+	ExpiresAt int64  `json:"expires_at"`
+	Tier      string `json:"tier"`
+}