增加日志,提交流程图

docs/系统流程图/0.资产导入流程.md

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+```mermaid
+---
+title: 0.资产导入流程
+---
+flowchart TD
+    Start((开始))
+    --> Login[使用平台管理员或平台运营账号登录]
+
+    Login --> HasPermission{是否有资产导入权限?}
+    HasPermission -->|否| NoPermission[无权限，流程终止]
+    HasPermission -->|是| EnterImportPage[进入资产导入页面]
+
+    EnterImportPage --> SelectType{选择导入类型}
+    SelectType -->|IoT卡导入| IotImport[进入 IoT卡导入]
+    SelectType -->|设备导入| DeviceImport[进入 设备导入]
+
+    subgraph PrepareAndSubmitFlow[准备文件与提交任务]
+        IotImport --> DownloadTemplate[下载最新导入模板]
+        DeviceImport --> DownloadTemplate
+
+        DownloadTemplate --> FillExcel[按模板填写 Excel 数据]
+        FillExcel --> FileReady{文件格式与内容是否合规?}
+        FileReady -->|否| FixExcel[修正文件后重新检查]
+        FixExcel --> FillExcel
+
+        FileReady -->|是| UploadExcel[上传导入文件]
+        UploadExcel --> SubmitTask[提交导入任务]
+        SubmitTask --> TaskCreated[导入任务创建成功]
+    end
+
+    subgraph TaskProcessFlow[任务处理与结果查看]
+        TaskCreated --> OpenTaskList[进入导入任务列表]
+        OpenTaskList --> CheckStatus{任务状态}
+
+        CheckStatus -->|待处理/处理中| WaitAndRefresh[等待处理并刷新列表]
+        WaitAndRefresh --> OpenTaskList
+
+        CheckStatus -->|失败| OpenTaskDetail[查看任务详情]
+        CheckStatus -->|已完成| OpenTaskDetail
+
+        OpenTaskDetail --> CheckResult[查看成功数/跳过数/失败数<br/>设备导入同时查看警告记录]
+        CheckResult --> NeedRetry{是否需要修正后重导?}
+
+        NeedRetry -->|是| FixSourceData[修正源数据后重新导入]
+        FixSourceData --> UploadExcel
+        NeedRetry -->|否| GoVerifyAssets[进入资产数据验收]
+    end
+
+    subgraph VerifyFlow[导入结果验收]
+        GoVerifyAssets --> VerifyType{验收类型}
+
+        VerifyType -->|IoT卡| VerifyIot[在 IoT卡列表核对<br/>ICCID/接入号/虚拟号/批次信息]
+        VerifyType -->|设备| VerifyDevice[在 设备列表核对<br/>设备虚拟号/设备信息/卡绑定关系]
+
+        VerifyIot --> VerifyPass{验收是否通过?}
+        VerifyDevice --> VerifyPass
+
+        VerifyPass -->|否| BackToRetry[返回修正数据后重导]
+        BackToRetry --> FixSourceData
+        VerifyPass -->|是| End([流程结束])
+    end
+
+    %% ==================== 样式美化 ====================
+    style Start fill:#90EE90,stroke:#2E7D32,stroke-width:2px
+    style End fill:#FF9999,stroke:#C62828,stroke-width:2px
+    style NoPermission fill:#FFCDD2,stroke:#D32F2F
+    style FixExcel fill:#FFCCBC,stroke:#E64A19
+    style FixSourceData fill:#FFCCBC,stroke:#E64A19
+    style BackToRetry fill:#FFCCBC,stroke:#E64A19
+
+    classDef decision fill:#FFF3E0,stroke:#F57C00,stroke-width:2px
+    class HasPermission,SelectType,FileReady,CheckStatus,NeedRetry,VerifyType,VerifyPass decision
+```