feat: 新增 AssetWallet Handler，实现资产钱包 API 接口

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

internal/handler/admin/asset_wallet.go

@@ -0,0 +1,88 @@
+package admin
+
+import (
+	"strconv"
+
+	"github.com/gofiber/fiber/v2"
+
+	"github.com/break/junhong_cmp_fiber/internal/model/dto"
+	assetWalletSvc "github.com/break/junhong_cmp_fiber/internal/service/asset_wallet"
+	"github.com/break/junhong_cmp_fiber/pkg/constants"
+	"github.com/break/junhong_cmp_fiber/pkg/errors"
+	"github.com/break/junhong_cmp_fiber/pkg/middleware"
+	"github.com/break/junhong_cmp_fiber/pkg/response"
+)
+
+// AssetWalletHandler 资产钱包处理器
+// 提供管理端资产（卡/设备）钱包概况和流水查询接口
+type AssetWalletHandler struct {
+	service *assetWalletSvc.Service
+}
+
+// NewAssetWalletHandler 创建资产钱包处理器
+func NewAssetWalletHandler(svc *assetWalletSvc.Service) *AssetWalletHandler {
+	return &AssetWalletHandler{service: svc}
+}
+
+// GetWallet 查询资产钱包概况
+// GET /api/admin/assets/:asset_type/:id/wallet
+func (h *AssetWalletHandler) GetWallet(c *fiber.Ctx) error {
+	userType := middleware.GetUserTypeFromContext(c.UserContext())
+	if userType == constants.UserTypeEnterprise {
+		return errors.New(errors.CodeForbidden, "企业账号无权查看钱包信息")
+	}
+
+	assetType := c.Params("asset_type")
+	if assetType != "card" && assetType != "device" {
+		return errors.New(errors.CodeInvalidParam, "无效的资产类型")
+	}
+
+	idStr := c.Params("id")
+	id, err := strconv.ParseUint(idStr, 10, 64)
+	if err != nil || id == 0 {
+		return errors.New(errors.CodeInvalidParam, "无效的资产ID")
+	}
+
+	result, err := h.service.GetWallet(c.UserContext(), assetType, uint(id))
+	if err != nil {
+		return err
+	}
+
+	return response.Success(c, result)
+}
+
+// ListTransactions 查询资产钱包流水列表
+// GET /api/admin/assets/:asset_type/:id/wallet/transactions
+func (h *AssetWalletHandler) ListTransactions(c *fiber.Ctx) error {
+	userType := middleware.GetUserTypeFromContext(c.UserContext())
+	if userType == constants.UserTypeEnterprise {
+		return errors.New(errors.CodeForbidden, "企业账号无权查看钱包信息")
+	}
+
+	assetType := c.Params("asset_type")
+	if assetType != "card" && assetType != "device" {
+		return errors.New(errors.CodeInvalidParam, "无效的资产类型")
+	}
+
+	idStr := c.Params("id")
+	id, err := strconv.ParseUint(idStr, 10, 64)
+	if err != nil || id == 0 {
+		return errors.New(errors.CodeInvalidParam, "无效的资产ID")
+	}
+
+	var req dto.AssetWalletTransactionListRequest
+	if err := c.QueryParser(&req); err != nil {
+		return errors.New(errors.CodeInvalidParam)
+	}
+
+	if req.PageSize > 100 {
+		return errors.New(errors.CodeInvalidParam, "每页数量不能超过100")
+	}
+
+	result, err := h.service.ListTransactions(c.UserContext(), assetType, uint(id), &req)
+	if err != nil {
+		return err
+	}
+
+	return response.Success(c, result)
+}