添加微信支付支持，重构资源创建逻辑，更新支付宝相关配置，移除账单状态字段

web/services/id.go

@@ -5,6 +5,7 @@ import (
 	"errors"
 	"fmt"
 	"platform/pkg/rds"
+	"strconv"
 	"strings"
 	"time"
 
@@ -42,7 +43,7 @@ var (
 	ErrSequenceOverflow = errors.New("sequence overflow")
 )
 
-func (s *IdService) GenSerial(ctx context.Context) (uint64, error) {
+func (s *IdService) GenSerial(ctx context.Context) (string, error) {
 	// 构造Redis键
 	now := time.Now().Unix()
 	key := idSerialKey(now)
@@ -74,13 +75,15 @@ func (s *IdService) GenSerial(ctx context.Context) (uint64, error) {
 		return err
 	}, key)
 	if err != nil {
-		return 0, err
+		return "", err
 	}
 
 	// 组装最终ID
 	id := uint64((now << timestampShift) | sequence)
 
-	return id, nil
+	idStr := strconv.FormatUint(id, 10)
+
+	return idStr, nil
 }
 
 // ParseSerial 解析ID，返回其组成部分