重构(#4): 抽奖奖品改/删 id 走 URL path（RESTful）

- PUT /admin/lottery/prizes/:id、DELETE /admin/lottery/prizes/:id
- handler 从 c.Param("id") 取 id；types 用 path:"id"
- 同步 apis/admin/lottery.api 定义

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

apis/admin/lottery.api

@@ -49,11 +49,11 @@ service ppanel {
 
 	@doc "Update prize"
 	@handler UpdateLotteryPrize
-	put /prizes (UpdateAdminLotteryPrizeRequest) returns (AdminLotteryPrize)
+	put /prizes/:id (UpdateAdminLotteryPrizeRequest) returns (AdminLotteryPrize)
 
 	@doc "Delete prize"
 	@handler DeleteLotteryPrize
-	delete /prizes (AdminPrizeIdRequest)
+	delete /prizes/:id (AdminPrizeIdRequest)
 
 	@doc "List prizes on an activity"
 	@handler ListLotteryPrizes

internal/handler/admin/lottery/lottery_handler.go

@@ -2,6 +2,8 @@
 package lottery
 
 import (
+	"strconv"
+
 	"github.com/gin-gonic/gin"
 	adminlottery "github.com/perfect-panel/server/internal/logic/admin/lottery"
 	"github.com/perfect-panel/server/internal/svc"
@@ -118,6 +120,9 @@ func UpdateLotteryPrizeHandler(svcCtx *svc.ServiceContext) func(c *gin.Context)
 	return func(c *gin.Context) {
 		var req types.UpdateAdminLotteryPrizeRequest
 		_ = c.ShouldBind(&req)
+		if id, err := strconv.ParseInt(c.Param("id"), 10, 64); err == nil {
+			req.Id = id
+		}
 		if err := svcCtx.Validate(&req); err != nil {
 			result.ParamErrorResult(c, err)
 			return
@@ -132,6 +137,9 @@ func DeleteLotteryPrizeHandler(svcCtx *svc.ServiceContext) func(c *gin.Context)
 	return func(c *gin.Context) {
 		var req types.AdminPrizeIdRequest
 		_ = c.ShouldBind(&req)
+		if id, err := strconv.ParseInt(c.Param("id"), 10, 64); err == nil {
+			req.Id = id
+		}
 		if err := svcCtx.Validate(&req); err != nil {
 			result.ParamErrorResult(c, err)
 			return

internal/handler/lottery_routes.go

@@ -35,8 +35,8 @@ func registerLotteryRoutes(router *gin.Engine, serverCtx *svc.ServiceContext) {
 		adminGroup.PUT("/activities/rules", adminLottery.UpdateLotteryRulesHandler(serverCtx))
 
 		adminGroup.POST("/prizes", adminLottery.CreateLotteryPrizeHandler(serverCtx))
-		adminGroup.PUT("/prizes", adminLottery.UpdateLotteryPrizeHandler(serverCtx))
-		adminGroup.DELETE("/prizes", adminLottery.DeleteLotteryPrizeHandler(serverCtx))
+		adminGroup.PUT("/prizes/:id", adminLottery.UpdateLotteryPrizeHandler(serverCtx))
+		adminGroup.DELETE("/prizes/:id", adminLottery.DeleteLotteryPrizeHandler(serverCtx))
 		adminGroup.GET("/prizes", adminLottery.ListLotteryPrizesHandler(serverCtx))
 
 		adminGroup.POST("/chances/grant", adminLottery.GrantLotteryChanceHandler(serverCtx))

internal/types/lottery.go

@@ -261,9 +261,10 @@ type CreateAdminLotteryPrizeRequest struct {
 	IsFallback bool            `json:"is_fallback"`
 }
 
-// UpdateAdminLotteryPrizeRequest updates mutable prize fields.
+// UpdateAdminLotteryPrizeRequest updates mutable prize fields. Id comes from
+// the URL path (PUT /prizes/:id), not the body.
 type UpdateAdminLotteryPrizeRequest struct {
-	Id         int64           `json:"id" validate:"required"`
+	Id         int64           `path:"id" json:"-" validate:"required"`
 	Slot       *int            `json:"slot,omitempty"`
 	Name       string          `json:"name,omitempty"`
 	IconUrl    string          `json:"icon_url,omitempty"`
@@ -283,9 +284,9 @@ type ListAdminLotteryPrizesResponse struct {
 	List []AdminLotteryPrize `json:"list"`
 }
 
-// AdminPrizeIdRequest is used by DELETE / GET single.
+// AdminPrizeIdRequest is used by DELETE /prizes/:id. Id comes from the URL path.
 type AdminPrizeIdRequest struct {
-	Id int64 `form:"id" json:"id" validate:"required"`
+	Id int64 `path:"id" form:"id" json:"id" validate:"required"`
 }
 
 // GrantAdminLotteryChanceRequest gives a specified user N chances on an