新功能(#4): 抽奖 Stage 2 人工奖领奖工单（crypto / physical / manual_other）

Closes HIF-4

Stage 2 交付：人工奖领奖工单完整闭环。crypto / physical / manual_other 三类奖品从抽中到 mark-paid 的全流程可用。

- 迁移 02159_lottery_claim：UNIQUE(draw_id) + 3 支持索引，状态机 pending_claim→reviewing→paying→paid，rejected 可复活，超时 expired
- 3 个 PrizeHandler：Dispatch→ErrDispatchNotSupported 兜底、ClaimSchema 各自形态、ValidateClaim 表驱动
- BuildCryptoClaimSchema：抽中时按奖品 config.networks 注入 enum，前端下拉直接可用
- Draw service dispatchOrEnqueueClaim：人工奖同 tx 插 pending_claim（回滚双清），nonce 重放回读 ExpiresAt + ClaimFormSchema
- POST /claim 实装：ownership 校验 → prize 类型校验 → handler.ValidateClaim → crypto network 白名单二次校验 → tx CAS status IN (pending_claim, rejected) AND expires_at > now
- Admin CRUD 5 接口：list（IN 批拉 snap + user，无 N+1）、summary（GROUP BY 一次拿计数 + overdue 单查）、approve/reject/mark-paid 全走 CAS + audit
- Scheduler @every 1h 扫过期，级联 lottery_draw.dispatch_state → expired
- 新增错误码 100005-100011（already_submitted / invalid_claim_data / draw_not_found / not_your_draw / claim_expired / claim_state_invalid）
- Rebase 后 Stage 2 测试主动 reuse PR E 的 unmetReasonsNotEmpty + evaluatedAtNotZero matcher，人工奖分支若绕过守卫会立即挂
- Stage 1 全部 4 处 guardrail 后端 rebase 时自检过：UnmetReasons、EvaluatedAt、GrantLedger.Payload、AdminMetaMiddleware 全保留

CI 全绿；28 files, +2442/-126；覆盖率 handler 78.9% / model.lottery 74.3% / draw 68.7% / queue/lottery 76.9%

pkg/xerr/errMsg.go

@@ -114,15 +114,21 @@ func init() {
 		OrderRefundCommissionMismatch: "Refund commission source not found",
 
 		// Lottery error
-		LotteryNotEligible:   "抽奖门槛未达成",
-		LotteryNoChances:     "抽奖次数不足",
-		LotteryActivityEnded: "抽奖活动未开放",
-		LotteryRateLimited:   "抽奖操作过于频繁，请稍后再试",
-		LotteryNotClaimable:  "该奖品当前不支持领取",
-		LotteryInternalError: "抽奖服务暂时不可用",
-		LotteryRuleTooDeep:   "规则树嵌套层数超限",
-		LotteryRuleTooMany:   "规则树节点数超限",
-		LotteryRuleTooLarge:  "规则树 JSON 体积超限",
+		LotteryNotEligible:       "抽奖门槛未达成",
+		LotteryNoChances:         "抽奖次数不足",
+		LotteryActivityEnded:     "抽奖活动未开放",
+		LotteryRateLimited:       "抽奖操作过于频繁，请稍后再试",
+		LotteryAlreadySubmitted:  "该奖品的领奖信息已提交，无需重复提交",
+		LotteryInvalidClaimData:  "领奖信息格式不正确",
+		LotteryDrawNotFound:      "抽奖记录不存在",
+		LotteryNotYourDraw:       "无权操作此抽奖记录",
+		LotteryClaimExpired:      "领奖窗口已过期",
+		LotteryNotClaimable:      "该奖品当前不支持领取",
+		LotteryClaimStateInvalid: "当前工单状态不允许此操作",
+		LotteryInternalError:     "抽奖服务暂时不可用",
+		LotteryRuleTooDeep:       "规则树嵌套层数超限",
+		LotteryRuleTooMany:       "规则树节点数超限",
+		LotteryRuleTooLarge:      "规则树 JSON 体积超限",
 
 		// Permission error
 		PermissionDenied: "Permission denied",