fix: 修复代理充值 Handler 缺少参数验证导致 check constraint 违反的问题

payment_method 字段传入中文值「线下转账」时，因 AgentRechargeHandler
未注入 validator 而跳过 oneof 验证，直接写入 DB 触发
chk_agent_recharge_method 约束报错。

- AgentRechargeHandler 注入 validator，Create 方法补加 Struct 验证
- bootstrap/handlers.go 传入 validate 实例
- openapi/handlers.go 补 nil 占位保持编译通过

internal/bootstrap/handlers.go

@@ -95,7 +95,7 @@ func initHandlers(svc *services, deps *Dependencies) *Handlers {
 		AssetLifecycle:              admin.NewAssetLifecycleHandler(svc.AssetLifecycle),
 		AssetWallet:                 admin.NewAssetWalletHandler(svc.AssetWallet),
 		WechatConfig:                admin.NewWechatConfigHandler(svc.WechatConfig),
-		AgentRecharge:               admin.NewAgentRechargeHandler(svc.AgentRecharge),
+		AgentRecharge:               admin.NewAgentRechargeHandler(svc.AgentRecharge, validate),
 		Refund:                      admin.NewRefundHandler(svc.Refund),
 	}
 }

internal/handler/admin/agent_recharge.go

@@ -3,6 +3,7 @@ package admin
 import (
 	"strconv"
 
+	"github.com/go-playground/validator/v10"
 	"github.com/gofiber/fiber/v2"
 
 	"github.com/break/junhong_cmp_fiber/internal/model/dto"
@@ -13,12 +14,13 @@ import (
 
 // AgentRechargeHandler 代理预充值 Handler
 type AgentRechargeHandler struct {
-	service *agentRechargeSvc.Service
+	service   *agentRechargeSvc.Service
+	validator *validator.Validate
 }
 
 // NewAgentRechargeHandler 创建代理预充值 Handler
-func NewAgentRechargeHandler(service *agentRechargeSvc.Service) *AgentRechargeHandler {
+func NewAgentRechargeHandler(service *agentRechargeSvc.Service, validator *validator.Validate) *AgentRechargeHandler {
-	return &AgentRechargeHandler{service: service}
+	return &AgentRechargeHandler{service: service, validator: validator}
 }
 
 // Create 创建代理充值订单
@@ -28,6 +30,9 @@ func (h *AgentRechargeHandler) Create(c *fiber.Ctx) error {
 	if err := c.BodyParser(&req); err != nil {
 		return errors.New(errors.CodeInvalidParam, "请求参数解析失败")
 	}
+	if err := h.validator.Struct(&req); err != nil {
+		return errors.New(errors.CodeInvalidParam)
+	}
 
 	result, err := h.service.Create(c.UserContext(), &req)
 	if err != nil {

pkg/openapi/handlers.go

@@ -57,7 +57,7 @@ func BuildDocHandlers() *bootstrap.Handlers {
 		Asset:                       admin.NewAssetHandler(nil, nil, nil),
 		AssetWallet:                 admin.NewAssetWalletHandler(nil),
 		WechatConfig:                admin.NewWechatConfigHandler(nil),
-		AgentRecharge:               admin.NewAgentRechargeHandler(nil),
+		AgentRecharge:               admin.NewAgentRechargeHandler(nil, nil),
 		Refund:                      admin.NewRefundHandler(nil),
 	}
 }