feat: 添加环境变量管理工具和部署配置改版

主要改动：
- 新增交互式环境配置脚本 (scripts/setup-env.sh)
- 新增本地启动快捷脚本 (scripts/run-local.sh)
- 新增环境变量模板文件 (.env.example)
- 部署模式改版：使用嵌入式配置 + 环境变量覆盖
- 添加对象存储功能支持
- 改进 IoT 卡片导入任务
- 优化 OpenAPI 文档生成
- 删除旧的配置文件，改用嵌入式默认配置

internal/handler/admin/iot_card_import.go

@@ -16,7 +16,9 @@ type IotCardImportHandler struct {
 }
 
 func NewIotCardImportHandler(service *iotCardImportService.Service) *IotCardImportHandler {
-	return &IotCardImportHandler{service: service}
+	return &IotCardImportHandler{
+		service: service,
+	}
 }
 
 func (h *IotCardImportHandler) Import(c *fiber.Ctx) error {
@@ -25,18 +27,11 @@ func (h *IotCardImportHandler) Import(c *fiber.Ctx) error {
 		return errors.New(errors.CodeInvalidParam, "请求参数解析失败")
 	}
 
-	file, err := c.FormFile("file")
-	if err != nil {
-		return errors.New(errors.CodeInvalidParam, "请上传 CSV 文件")
+	if req.FileKey == "" {
+		return errors.New(errors.CodeInvalidParam, "文件路径不能为空")
 	}
 
-	f, err := file.Open()
-	if err != nil {
-		return errors.New(errors.CodeInvalidParam, "无法读取上传文件")
-	}
-	defer f.Close()
-
-	result, err := h.service.CreateImportTask(c.UserContext(), &req, f, file.Filename)
+	result, err := h.service.CreateImportTask(c.UserContext(), &req)
 	if err != nil {
 		return err
 	}

internal/handler/admin/storage.go

@@ -0,0 +1,40 @@
+package admin
+
+import (
+	"github.com/gofiber/fiber/v2"
+
+	"github.com/break/junhong_cmp_fiber/internal/model/dto"
+	"github.com/break/junhong_cmp_fiber/pkg/errors"
+	"github.com/break/junhong_cmp_fiber/pkg/response"
+	"github.com/break/junhong_cmp_fiber/pkg/storage"
+)
+
+type StorageHandler struct {
+	service *storage.Service
+}
+
+func NewStorageHandler(service *storage.Service) *StorageHandler {
+	return &StorageHandler{service: service}
+}
+
+func (h *StorageHandler) GetUploadURL(c *fiber.Ctx) error {
+	if h.service == nil {
+		return errors.New(errors.CodeInternalError, "对象存储服务未配置")
+	}
+
+	var req dto.GetUploadURLRequest
+	if err := c.BodyParser(&req); err != nil {
+		return errors.New(errors.CodeInvalidParam, "请求参数解析失败")
+	}
+
+	result, err := h.service.GetUploadURL(c.UserContext(), req.Purpose, req.FileName, req.ContentType)
+	if err != nil {
+		return errors.New(errors.CodeInternalError, err.Error())
+	}
+
+	return response.Success(c, dto.GetUploadURLResponse{
+		UploadURL: result.URL,
+		FileKey:   result.FileKey,
+		ExpiresIn: result.ExpiresIn,
+	})
+}