diff --git a/.kiro/specs/work-camera-2.0/design.md b/.kiro/specs/work-camera-2.0/design.md
new file mode 100644
index 0000000..0c41ba7
--- /dev/null
+++ b/.kiro/specs/work-camera-2.0/design.md
@@ -0,0 +1,480 @@
+# Design Document
+
+## Overview
+
+随工水印相机 2.0 系统升级设计，主要包含四个核心模块：
+1. **图片上传改造** - 将图片存储从服务器本地迁移到腾讯云 COS，实现客户端直传
+2. **数据导出 API** - 提供分页查询接口供 CS 客户端调用
+3. **CS 客户端** - Windows 桌面应用，实现本地 Excel 导出
+4. **历史数据迁移** - 将服务器本地图片迁移到 COS
+
+## Architecture
+
+```
+┌─────────────────────────────────────────────────────────────────────────┐
+│                           System Architecture                            │
+├─────────────────────────────────────────────────────────────────────────┤
+│                                                                          │
+│  ┌──────────────┐     ┌──────────────┐     ┌──────────────────────────┐ │
+│  │  UniApp      │     │  CS Client   │     │     腾讯云 COS           │ │
+│  │  (Mobile)    │     │  (Windows)   │     │  (ap-shanghai)           │ │
+│  └──────┬───────┘     └──────┬───────┘     └────────────┬─────────────┘ │
+│         │                    │                          │               │
+│         │ 1.获取预签名URL    │                          │               │
+│         ├────────────────────┼──────────────────────────┤               │
+│         │                    │                          │               │
+│         │ 2.直传图片 ────────┼──────────────────────────►               │
+│         │                    │                          │               │
+│         │ 3.保存记录         │ 4.查询/导出              │               │
+│         ├────────────────────┼──────────────────────────┤               │
+│         │                    │                          │               │
+│         ▼                    ▼                          │               │
+│  ┌──────────────────────────────────────────────────────┤               │
+│  │                    .NET API Server                   │               │
+│  │  ┌─────────────┐  ┌─────────────┐  ┌─────────────┐  │               │
+│  │  │ CosService  │  │ WorkRecord  │  │ Migration   │  │               │
+│  │  │             │  │ Service     │  │ Service     │  │               │
+│  │  └─────────────┘  └─────────────┘  └─────────────┘  │               │
+│  └──────────────────────────────────────────────────────┘               │
+│                              │                                          │
+│                              ▼                                          │
+│                    ┌──────────────────┐                                 │
+│                    │   SQL Server     │                                 │
+│                    │   Database       │                                 │
+│                    └──────────────────┘                                 │
+│                                                                          │
+└─────────────────────────────────────────────────────────────────────────┘
+```
+
+## Components and Interfaces
+
+### 1. COS Service (后端)
+
+负责腾讯云 COS 相关操作，包括生成预签名 URL 和临时密钥。
+
+```csharp
+public interface ICosService
+{
+    /// <summary>
+    /// 生成批量上传预签名URL
+    /// </summary>
+    /// <param name="request">上传请求参数</param>
+    /// <returns>预签名URL列表</returns>
+    CosUploadUrlsResponse GetUploadUrls(CosUploadUrlsRequest request);
+    
+    /// <summary>
+    /// 获取临时密钥（用于迁移）
+    /// </summary>
+    /// <returns>临时密钥信息</returns>
+    CosTempCredentials GetTempCredentials();
+}
+```
+
+### 2. COS Controller (后端)
+
+提供 COS 相关的 HTTP 接口。
+
+```csharp
+[Route("api/cos")]
+public class CosController : BaseController
+{
+    /// <summary>
+    /// 获取上传预签名URL
+    /// POST /api/cos/getUploadUrls
+    /// </summary>
+    Task<IActionResult> GetUploadUrls([FromBody] CosUploadUrlsRequest request);
+    
+    /// <summary>
+    /// 获取临时密钥
+    /// GET /api/cos/getTempCredentials
+    /// </summary>
+    Task<IActionResult> GetTempCredentials();
+}
+```
+
+### 3. WorkRecord V3 接口 (后端)
+
+新增支持 COS URL 的工作记录保存接口。
+
+```csharp
+/// <summary>
+/// 添加工作记录（COS直传 v3）
+/// POST /addworkrecordv3
+/// </summary>
+Task<IActionResult> AddCamWorkRecordV3([FromBody] CamRecordWorkV3Dto parm);
+```
+
+### 4. Export API (后端)
+
+提供数据导出查询接口。
+
+```csharp
+[Route("api/workrecord/export")]
+public class WorkRecordExportController : BaseController
+{
+    /// <summary>
+    /// 分页查询工作记录（导出用）
+    /// GET /api/workrecord/export/list
+    /// </summary>
+    Task<IActionResult> GetExportList([FromQuery] WorkRecordExportQueryDto query);
+}
+```
+
+### 5. Migration API (后端)
+
+提供历史数据迁移相关接口。
+
+```csharp
+[Route("api/workrecord/migration")]
+public class WorkRecordMigrationController : BaseController
+{
+    /// <summary>
+    /// 获取待迁移记录列表
+    /// GET /api/workrecord/migration/list
+    /// </summary>
+    Task<IActionResult> GetMigrationList([FromQuery] MigrationQueryDto query);
+    
+    /// <summary>
+    /// 更新迁移后的URL
+    /// POST /api/workrecord/migration/update
+    /// </summary>
+    Task<IActionResult> UpdateMigrationUrls([FromBody] MigrationUpdateDto dto);
+}
+```
+
+### 6. CS Client Architecture
+
+```
+┌─────────────────────────────────────────────────────────────────┐
+│                      CS Client (WinForms)                        │
+├─────────────────────────────────────────────────────────────────┤
+│                                                                  │
+│  ┌─────────────────┐  ┌─────────────────┐  ┌─────────────────┐  │
+│  │   MainForm      │  │  MigrationForm  │  │   LoginForm     │  │
+│  │   (导出界面)    │  │  (迁移界面)     │  │   (登录界面)    │  │
+│  └────────┬────────┘  └────────┬────────┘  └────────┬────────┘  │
+│           │                    │                    │           │
+│           ▼                    ▼                    ▼           │
+│  ┌──────────────────────────────────────────────────────────┐   │
+│  │                     Services Layer                        │   │
+│  │  ┌─────────────┐  ┌─────────────┐  ┌─────────────────┐   │   │
+│  │  │ ApiService  │  │ CosService  │  │ ExcelService    │   │   │
+│  │  │ (HTTP调用)  │  │ (COS上传)   │  │ (Excel生成)    │   │   │
+│  │  └─────────────┘  └─────────────┘  └─────────────────┘   │   │
+│  └──────────────────────────────────────────────────────────┘   │
+│                                                                  │
+└─────────────────────────────────────────────────────────────────┘
+```
+
+## Data Models
+
+### 1. COS 上传请求/响应 DTO
+
+```csharp
+/// <summary>
+/// COS上传URL请求
+/// </summary>
+public class CosUploadUrlsRequest
+{
+    public DateTime RecordTime { get; set; }
+    public string DeptName { get; set; }
+    public string Content { get; set; }
+    public List<string> Workers { get; set; }
+    public string FileExt { get; set; } = ".jpg";
+    public int ImageCount { get; set; }
+}
+
+/// <summary>
+/// COS上传URL响应
+/// </summary>
+public class CosUploadUrlsResponse
+{
+    public List<CosImageUploadInfo> Images { get; set; }
+}
+
+/// <summary>
+/// 单张图片上传信息
+/// </summary>
+public class CosImageUploadInfo
+{
+    public string ImageId { get; set; }
+    public string FileName { get; set; }
+    public CosUploadUrls UploadUrls { get; set; }
+    public string AccessUrl { get; set; }
+}
+
+/// <summary>
+/// 各分类目录的上传URL
+/// </summary>
+public class CosUploadUrls
+{
+    public string Daily { get; set; }
+    public Dictionary<string, string> Workers { get; set; }
+    public string Content { get; set; }
+    public string Dept { get; set; }
+}
+```
+
+### 2. 工作记录 V3 DTO
+
+```csharp
+/// <summary>
+/// 工作记录V3请求（COS直传）
+/// </summary>
+public class CamRecordWorkV3Dto
+{
+    public int? Id { get; set; }
+    public string DeptName { get; set; }
+    public DateTime? RecordTime { get; set; }
+    public string Longitude { get; set; }
+    public string Latitude { get; set; }
+    public string Address { get; set; }
+    public string Content { get; set; }
+    public string StatusName { get; set; }
+    public string Remarks { get; set; }
+    public List<string> Workers { get; set; }
+    /// <summary>
+    /// COS图片URL列表（替代Base64）
+    /// </summary>
+    public List<string> ImageUrls { get; set; }
+}
+```
+
+### 3. 导出查询 DTO
+
+```csharp
+/// <summary>
+/// 导出查询请求
+/// </summary>
+public class WorkRecordExportQueryDto
+{
+    public int PageNum { get; set; } = 1;
+    public int PageSize { get; set; } = 50;
+    public DateTime? StartDate { get; set; }
+    public DateTime? EndDate { get; set; }
+    public string DeptName { get; set; }
+    public string WorkerName { get; set; }
+    public string Content { get; set; }
+}
+
+/// <summary>
+/// 导出记录响应
+/// </summary>
+public class WorkRecordExportDto
+{
+    public int Id { get; set; }
+    public string DeptName { get; set; }
+    public DateTime? RecordTime { get; set; }
+    public string Longitude { get; set; }
+    public string Latitude { get; set; }
+    public string Address { get; set; }
+    public string Content { get; set; }
+    public string StatusName { get; set; }
+    public List<string> Workers { get; set; }
+    public List<string> Images { get; set; }
+    public DateTime? CreateTime { get; set; }
+    public DateTime? UpdateTime { get; set; }
+}
+```
+
+### 4. 迁移相关 DTO
+
+```csharp
+/// <summary>
+/// 迁移查询请求
+/// </summary>
+public class MigrationQueryDto
+{
+    public int PageNum { get; set; } = 1;
+    public int PageSize { get; set; } = 50;
+    public DateTime? StartDate { get; set; }
+    public DateTime? EndDate { get; set; }
+    public int? Status { get; set; } // 0-未迁移 1-已迁移 2-失败
+}
+
+/// <summary>
+/// 迁移记录响应
+/// </summary>
+public class MigrationRecordDto
+{
+    public int Id { get; set; }
+    public DateTime? RecordTime { get; set; }
+    public string DeptName { get; set; }
+    public string Content { get; set; }
+    public int ImageCount { get; set; }
+    public List<MigrationImageDto> Images { get; set; }
+    public int MigrationStatus { get; set; }
+}
+
+/// <summary>
+/// 迁移URL更新请求
+/// </summary>
+public class MigrationUpdateDto
+{
+    public int RecordId { get; set; }
+    public List<MigrationUrlPair> ImageUrls { get; set; }
+}
+
+public class MigrationUrlPair
+{
+    public string OldUrl { get; set; }
+    public string NewUrl { get; set; }
+}
+```
+
+## COS Configuration
+
+腾讯云 COS 配置将存储在 `appsettings.json` 中：
+
+```json
+{
+  "TencentCOS": {
+    "AppId": "1308826010",
+    "Region": "ap-shanghai",
+    "SecretId": "AKIDVyMfzKZdZP8zkNyOdsFuSsBJDB7EScs0",
+    "SecretKey": "89GWr7JPWYTL8ueHlAYowGZnvzKZjqs9",
+    "BucketName": "miaoyu",
+    "DomainUrl": "https://miaoyu-1308826010.cos.ap-shanghai.myqcloud.com",
+    "MaxSize": 100,
+    "DurationSecond": 600,
+    "Prefixes": "workfiles"
+  }
+}
+```
+
+## COS Directory Structure
+
+保持与现有本地存储一致的目录结构：
+
+```
+/workfiles/{yyyyMM}/{yyyyMMdd}/
+  ├── 当日照片/{timestamp}_{random}.jpg
+  ├── 参与人员/{人员姓名}/{timestamp}_{random}.jpg
+  ├── 工作内容/{工作内容}/{timestamp}_{random}.jpg
+  └── 部门/{部门名称}/{timestamp}_{random}.jpg
+```
+
+## Correctness Properties
+
+*A property is a characteristic or behavior that should hold true across all valid executions of a system-essentially, a formal statement about what the system should do. Properties serve as the bridge between human-readable specifications and machine-verifiable correctness guarantees.*
+
+### Property 1: Pre-signed URL Generation Completeness
+*For any* valid upload request with N images and M workers, the API SHALL return exactly N image entries, each containing:
+- 1 daily photo URL
+- M worker directory URLs (one per worker)
+- 1 content directory URL
+- 1 department directory URL
+- All URLs following the pattern `/workfiles/{yyyyMM}/{yyyyMMdd}/{category}/{subcategory}/{timestamp}_{random}.{ext}`
+
+**Validates: Requirements 1.1, 1.2, 1.4, 1.5**
+
+### Property 2: COS URL Validation
+*For any* URL submitted to the V3 interface, the system SHALL accept only URLs matching the COS domain pattern `https://miaoyu-1308826010.cos.ap-shanghai.myqcloud.com/workfiles/...` and reject all other URLs.
+
+**Validates: Requirements 3.3**
+
+### Property 3: V3 Record Save Integrity
+*For any* valid V3 save request with N image URLs, the system SHALL:
+- Create exactly one work record in database
+- Store all N image URLs in the image table
+- Return the created record ID and image count = N
+
+**Validates: Requirements 3.1, 3.4**
+
+### Property 4: Export Pagination Consistency
+*For any* export query with total N records and page size P, iterating through all ceil(N/P) pages SHALL return exactly N unique records with no duplicates or missing entries. Page size SHALL be capped at 50 regardless of requested value.
+
+**Validates: Requirements 4.1, 4.2, 4.4**
+
+### Property 5: Export Filter Accuracy
+*For any* export query with filters (date range, department, worker, content), all returned records SHALL match ALL specified filter criteria.
+
+**Validates: Requirements 4.3**
+
+### Property 6: Migration List Filter
+*For any* migration list query with status filter, all returned records SHALL have the specified migration status (0-unmigrated, 1-migrated, 2-failed).
+
+**Validates: Requirements 10.1, 10.2**
+
+### Property 7: Migration URL Update Integrity
+*For any* migration update request with N URL pairs, the system SHALL:
+- Validate all new URLs are valid COS URLs
+- Update all N URLs atomically (all succeed or all fail)
+- Preserve the mapping between old and new URLs
+
+**Validates: Requirements 10.3, 10.4**
+
+## Error Handling
+
+### API Error Responses
+
+| 错误码 | 说明 | 处理方式 |
+|--------|------|----------|
+| 400 | 参数错误 | 返回具体错误字段 |
+| 401 | 未授权 | 要求重新登录 |
+| 403 | 无权限 | 提示权限不足 |
+| 500 | 服务器错误 | 记录日志，返回友好提示 |
+
+### COS 上传错误处理
+
+1. **预签名 URL 过期** - 客户端重新获取 URL
+2. **上传失败** - 客户端重试最多 3 次
+3. **部分上传成功** - 记录失败的目录，允许重试
+
+### CS 客户端错误处理
+
+1. **网络超时** - 自动重试，显示重试进度
+2. **下载失败** - 跳过失败图片，记录日志
+3. **Excel 生成失败** - 保存已下载数据，允许重新生成
+
+## Testing Strategy
+
+### Unit Tests
+
+使用 xUnit 进行单元测试：
+
+1. **CosService Tests**
+   - 测试预签名 URL 生成逻辑
+   - 测试目录路径生成
+   - 测试文件名生成
+
+2. **WorkRecordService Tests**
+   - 测试 V3 接口数据保存
+   - 测试查询过滤逻辑
+   - 测试分页逻辑
+
+3. **MigrationService Tests**
+   - 测试迁移状态判断
+   - 测试 URL 更新逻辑
+
+### Property-Based Tests
+
+使用 FsCheck 进行属性测试：
+
+1. **Property 1: Pre-signed URL Generation Completeness**
+   - 生成随机的上传请求参数
+   - 验证返回的 URL 数量和结构
+
+2. **Property 4: Pagination Consistency**
+   - 生成随机数量的测试数据
+   - 验证分页遍历的完整性
+
+### Integration Tests
+
+1. **COS 集成测试**
+   - 测试实际上传到 COS
+   - 测试预签名 URL 有效性
+
+2. **API 集成测试**
+   - 测试完整的上传流程
+   - 测试导出 API 响应
+
+### CS Client Tests
+
+1. **API 调用测试**
+   - Mock API 响应测试
+   - 错误处理测试
+
+2. **Excel 生成测试**
+   - 测试 Excel 格式正确性
+   - 测试图片嵌入功能
diff --git a/.kiro/specs/work-camera-2.0/requirements.md b/.kiro/specs/work-camera-2.0/requirements.md
new file mode 100644
index 0000000..577e84a
--- /dev/null
+++ b/.kiro/specs/work-camera-2.0/requirements.md
@@ -0,0 +1,151 @@
+# Requirements Document
+
+## Introduction
+
+随工水印相机 2.0 系统升级，主要解决服务器资源瓶颈问题。通过将图片存储迁移到腾讯云 COS、开发 CS 客户端本地导出 Excel，释放服务器带宽和存储压力。
+
+## Glossary
+
+- **COS**: 腾讯云对象存储服务 (Cloud Object Storage)
+- **Pre-signed_URL**: 预签名URL，允许客户端直接上传文件到 COS 而无需暴露密钥
+- **UniApp_Client**: 基于 UniApp 框架的移动端应用
+- **CS_Client**: Windows 桌面客户端 (Client-Server)
+- **Work_Record**: 工作记录，包含拍照时间、位置、工作内容、参与人员和图片等信息
+- **Image_Migration**: 图片迁移，将服务器本地图片迁移到 COS 的过程
+- **API_Server**: 基于 .NET 的后端服务器
+
+## COS Configuration
+
+腾讯云 COS 配置信息：
+
+| 配置项 | 值 | 说明 |
+|--------|-----|------|
+| AppId | 1308826010 | 腾讯云 AppId |
+| Region | ap-shanghai | 存储区域（上海） |
+| SecretId | AKIDVyMfzKZdZP8zkNyOdsFuSsBJDB7EScs0 | 访问密钥 ID |
+| SecretKey | 89GWr7JPWYTL8ueHlAYowGZnvzKZjqs9 | 访问密钥 Secret |
+| BucketName | miaoyu | 存储桶名称 |
+| DomainUrl | https://miaoyu-1308826010.cos.ap-shanghai.myqcloud.com | 访问资源域名 |
+| MaxSize | 100 | 上传文件大小限制 (MB) |
+| DurationSecond | 600 | 签名有效期（秒） |
+| Prefixes | file | 路径前缀 |
+
+## Requirements
+
+### Requirement 1: COS 预签名 URL 生成
+
+**User Story:** As a UniApp_Client user, I want to get pre-signed URLs for uploading images, so that I can upload images directly to COS without going through the server.
+
+#### Acceptance Criteria
+
+1. WHEN the UniApp_Client requests upload URLs with record time, department name, content, workers list, file extension and image count, THE API_Server SHALL return pre-signed URLs for each image
+2. THE API_Server SHALL generate URLs for four directory categories: daily photos, workers, content, and department
+3. WHEN generating pre-signed URLs, THE API_Server SHALL set URL expiration time to 30 minutes
+4. THE API_Server SHALL generate file names using timestamp and random number format: `{timestamp}_{random}.{ext}`
+5. THE API_Server SHALL organize COS paths following the structure: `/workfiles/{yyyyMM}/{yyyyMMdd}/{category}/{subcategory}/{filename}`
+
+### Requirement 2: COS 直传上传
+
+**User Story:** As a UniApp_Client user, I want to upload images directly to COS, so that server bandwidth is not consumed during upload.
+
+#### Acceptance Criteria
+
+1. WHEN the UniApp_Client receives pre-signed URLs, THE UniApp_Client SHALL upload images directly to COS using PUT method
+2. THE UniApp_Client SHALL upload each image to all four directory categories (daily, workers, content, department)
+3. THE UniApp_Client SHALL support concurrent uploads with maximum 3 parallel requests
+4. IF an upload fails, THEN THE UniApp_Client SHALL retry up to 3 times before reporting failure
+
+### Requirement 3: 工作记录保存 (v3 接口)
+
+**User Story:** As a UniApp_Client user, I want to save work records with COS image URLs, so that my work records are persisted with the new storage system.
+
+#### Acceptance Criteria
+
+1. WHEN the UniApp_Client submits a work record with COS image URLs, THE API_Server SHALL save the record to database
+2. THE API_Server SHALL accept imageUrls array containing COS URLs instead of Base64 encoded images
+3. THE API_Server SHALL validate that all provided image URLs are valid COS URLs
+4. THE API_Server SHALL return the created record ID and image count on success
+5. THE API_Server SHALL maintain backward compatibility by keeping v1 and v2 interfaces unchanged
+
+### Requirement 4: 工作记录导出查询
+
+**User Story:** As a CS_Client user, I want to query work records with pagination, so that I can export data to Excel locally.
+
+#### Acceptance Criteria
+
+1. WHEN the CS_Client requests work records with pagination parameters, THE API_Server SHALL return paginated results
+2. THE API_Server SHALL limit page size to maximum 50 records per request
+3. THE API_Server SHALL support filtering by date range, department name, worker name, and content
+4. THE API_Server SHALL return complete record data including all image URLs
+5. THE API_Server SHALL require authentication for export API access
+
+### Requirement 5: CS 客户端登录
+
+**User Story:** As a CS_Client user, I want to login with my credentials, so that I can access the export functionality.
+
+#### Acceptance Criteria
+
+1. WHEN the user enters server address, username and password, THE CS_Client SHALL authenticate against the API_Server
+2. WHEN login succeeds, THE CS_Client SHALL store the authentication token locally
+3. THE CS_Client SHALL support "remember me" functionality to persist login state
+4. IF login fails, THEN THE CS_Client SHALL display appropriate error message
+
+### Requirement 6: CS 客户端数据预览
+
+**User Story:** As a CS_Client user, I want to preview query results before exporting, so that I can verify the data selection.
+
+#### Acceptance Criteria
+
+1. WHEN the user sets query conditions and clicks preview, THE CS_Client SHALL display total record count and estimated image count
+2. THE CS_Client SHALL display a preview list showing first N records with basic information
+3. THE CS_Client SHALL show record number, date, department, content, and image count in preview
+
+### Requirement 7: CS 客户端 Excel 导出
+
+**User Story:** As a CS_Client user, I want to export work records to Excel with embedded images, so that I can have offline access to the data.
+
+#### Acceptance Criteria
+
+1. WHEN the user clicks export, THE CS_Client SHALL fetch all matching records via paginated API calls
+2. THE CS_Client SHALL download images concurrently with maximum 5 parallel downloads
+3. THE CS_Client SHALL generate Excel file with columns: 序号, 部门名称, 拍照时间, 经度, 纬度, 位置, 工作内容, 施工人员, 状态, 施工图片, 创建时间, 更新时间
+4. THE CS_Client SHALL embed images in cells with size 100x60 pixels, compressed to 50% quality
+5. THE CS_Client SHALL display export progress showing processed records and downloaded images
+6. THE CS_Client SHALL support canceling export operation
+7. WHEN export completes, THE CS_Client SHALL open the containing folder automatically
+
+### Requirement 8: 历史数据迁移查询
+
+**User Story:** As a CS_Client user, I want to view records pending migration, so that I can select which records to migrate.
+
+#### Acceptance Criteria
+
+1. WHEN the user opens migration window, THE CS_Client SHALL fetch records with old server URLs
+2. THE CS_Client SHALL support filtering by date range, department, and migration status
+3. THE CS_Client SHALL display migration status: unmigrated, migrated, or failed
+4. THE CS_Client SHALL support selecting individual records or batch selection
+
+### Requirement 9: 历史数据迁移执行
+
+**User Story:** As a CS_Client user, I want to migrate selected records to COS, so that historical data uses the new storage system.
+
+#### Acceptance Criteria
+
+1. WHEN the user selects records and clicks migrate, THE CS_Client SHALL download images from old server
+2. THE CS_Client SHALL upload downloaded images to COS maintaining directory structure
+3. THE CS_Client SHALL call API to update image URLs in database after successful upload
+4. THE CS_Client SHALL display migration progress showing processed records and uploaded images
+5. THE CS_Client SHALL support canceling migration operation
+6. IF migration fails for a record, THEN THE CS_Client SHALL mark it as failed and continue with next record
+7. THE CS_Client SHALL support retrying failed migrations
+
+### Requirement 10: 迁移 API 支持
+
+**User Story:** As a CS_Client, I want API endpoints for migration operations, so that I can query and update migration data.
+
+#### Acceptance Criteria
+
+1. WHEN the CS_Client requests migration list, THE API_Server SHALL return records with old server URLs
+2. THE API_Server SHALL support filtering by migration status (0-unmigrated, 1-migrated, 2-failed)
+3. WHEN the CS_Client submits URL updates, THE API_Server SHALL update image URLs in database
+4. THE API_Server SHALL validate that new URLs are valid COS URLs before updating
diff --git a/.kiro/specs/work-camera-2.0/tasks.md b/.kiro/specs/work-camera-2.0/tasks.md
new file mode 100644
index 0000000..bec8eb1
--- /dev/null
+++ b/.kiro/specs/work-camera-2.0/tasks.md
@@ -0,0 +1,216 @@
+# Implementation Plan: 随工水印相机 2.0
+
+## Overview
+
+本实现计划分为五个阶段：后端 COS 集成、前端上传改造、导出 API 开发、CS 客户端开发、历史数据迁移。采用增量开发方式，每个阶段完成后进行验证。
+
+## Tasks
+
+- [ ] 1. 后端 COS 集成与配置
+  - [ ] 1.1 添加腾讯云 COS SDK 依赖
+    - 在 `ZR.Common` 项目中添加 `Tencent.QCloud.Cos.Sdk` NuGet 包
+    - _Requirements: 1.1_
+  - [ ] 1.2 创建 COS 配置模型
+    - 在 `Infrastructure/Model/OptionsSetting.cs` 中添加 `TencentCOS` 配置类
+    - 包含 AppId, Region, SecretId, SecretKey, BucketName, DomainUrl, MaxSize, DurationSecond, Prefixes
+    - _Requirements: 1.1_
+  - [ ] 1.3 更新 appsettings.json 配置
+    - 添加 TencentCOS 配置节
+    - _Requirements: 1.1_
+  - [ ] 1.4 创建 CosService 服务类
+    - 创建 `ZR.Common/CosService.cs`
+    - 实现 `GetUploadUrls` 方法生成预签名 URL
+    - 实现 `GetTempCredentials` 方法获取临时密钥
+    - _Requirements: 1.1, 1.2, 1.3, 1.4, 1.5_
+  - [ ] 1.5 编写 CosService 单元测试
+    - 测试 URL 生成逻辑
+    - 测试目录路径格式
+    - _Requirements: 1.1, 1.2, 1.4, 1.5_
+
+- [ ] 2. COS 预签名 URL 接口
+  - [ ] 2.1 创建 COS 相关 DTO
+    - 在 `ZR.Model/Business/Dto` 中创建 `CosUploadUrlsRequest.cs`
+    - 创建 `CosUploadUrlsResponse.cs`
+    - _Requirements: 1.1, 1.2_
+  - [ ] 2.2 创建 CosController
+    - 在 `ZR.Admin.WebApi/Controllers` 中创建 `CosController.cs`
+    - 实现 `POST /api/cos/getUploadUrls` 接口
+    - 实现 `GET /api/cos/getTempCredentials` 接口
+    - _Requirements: 1.1, 1.2, 1.3_
+  - [ ] 2.3 编写属性测试 - URL 生成完整性
+    - **Property 1: Pre-signed URL Generation Completeness**
+    - **Validates: Requirements 1.1, 1.2, 1.4, 1.5**
+
+- [ ] 3. Checkpoint - COS 集成验证
+  - 确保 COS 配置正确加载
+  - 确保预签名 URL 接口可正常调用
+  - 确保所有测试通过，如有问题请询问用户
+
+- [ ] 4. 工作记录 V3 接口
+  - [ ] 4.1 创建 V3 DTO
+    - 在 `ZR.Model/Business/Dto` 中创建 `CamRecordWorkV3Dto.cs`
+    - 包含 ImageUrls 字段替代 Image/Images
+    - _Requirements: 3.1, 3.2_
+  - [ ] 4.2 实现 V3 保存接口
+    - 在 `CommonController.cs` 中添加 `AddCamWorkRecordV3` 方法
+    - 路由: `POST /addworkrecordv3`
+    - 验证 COS URL 格式
+    - 复用现有数据库存储逻辑
+    - _Requirements: 3.1, 3.2, 3.3, 3.4, 3.5_
+  - [ ] 4.3 编写属性测试 - COS URL 验证
+    - **Property 2: COS URL Validation**
+    - **Validates: Requirements 3.3**
+  - [ ] 4.4 编写属性测试 - V3 记录保存完整性
+    - **Property 3: V3 Record Save Integrity**
+    - **Validates: Requirements 3.1, 3.4**
+
+- [ ] 5. Checkpoint - V3 接口验证
+  - 确保 V3 接口可正常保存记录
+  - 确保图片 URL 正确存储
+  - 确保所有测试通过，如有问题请询问用户
+
+- [ ] 6. 数据导出 API
+  - [ ] 6.1 创建导出查询 DTO
+    - 在 `ZR.Model/Business/Dto` 中创建 `WorkRecordExportQueryDto.cs`
+    - 创建 `WorkRecordExportDto.cs`
+    - _Requirements: 4.1, 4.3, 4.4_
+  - [ ] 6.2 创建导出 Service
+    - 在 `ZR.Service/Business` 中创建 `WorkRecordExportService.cs`
+    - 实现分页查询逻辑
+    - 实现过滤逻辑（日期、部门、人员、内容）
+    - _Requirements: 4.1, 4.2, 4.3, 4.4_
+  - [ ] 6.3 创建导出 Controller
+    - 在 `ZR.Admin.WebApi/Controllers` 中创建 `WorkRecordExportController.cs`
+    - 实现 `GET /api/workrecord/export/list` 接口
+    - 添加认证要求
+    - _Requirements: 4.1, 4.2, 4.3, 4.4, 4.5_
+  - [ ] 6.4 编写属性测试 - 分页一致性
+    - **Property 4: Export Pagination Consistency**
+    - **Validates: Requirements 4.1, 4.2, 4.4**
+  - [ ] 6.5 编写属性测试 - 过滤准确性
+    - **Property 5: Export Filter Accuracy**
+    - **Validates: Requirements 4.3**
+
+- [ ] 7. Checkpoint - 导出 API 验证
+  - 确保分页查询正常工作
+  - 确保过滤条件正确应用
+  - 确保所有测试通过，如有问题请询问用户
+
+- [ ] 8. 历史数据迁移 API
+  - [ ] 8.1 创建迁移相关 DTO
+    - 在 `ZR.Model/Business/Dto` 中创建 `MigrationQueryDto.cs`
+    - 创建 `MigrationRecordDto.cs`
+    - 创建 `MigrationUpdateDto.cs`
+    - _Requirements: 10.1, 10.2, 10.3_
+  - [ ] 8.2 创建迁移 Service
+    - 在 `ZR.Service/Business` 中创建 `WorkRecordMigrationService.cs`
+    - 实现待迁移记录查询（根据 URL 域名判断）
+    - 实现 URL 更新逻辑
+    - _Requirements: 10.1, 10.2, 10.3, 10.4_
+  - [ ] 8.3 创建迁移 Controller
+    - 在 `ZR.Admin.WebApi/Controllers` 中创建 `WorkRecordMigrationController.cs`
+    - 实现 `GET /api/workrecord/migration/list` 接口
+    - 实现 `POST /api/workrecord/migration/update` 接口
+    - _Requirements: 10.1, 10.2, 10.3, 10.4_
+  - [ ] 8.4 编写属性测试 - 迁移列表过滤
+    - **Property 6: Migration List Filter**
+    - **Validates: Requirements 10.1, 10.2**
+  - [ ] 8.5 编写属性测试 - 迁移 URL 更新完整性
+    - **Property 7: Migration URL Update Integrity**
+    - **Validates: Requirements 10.3, 10.4**
+
+- [ ] 9. Checkpoint - 后端 API 完成验证
+  - 确保所有后端 API 正常工作
+  - 确保所有测试通过，如有问题请询问用户
+
+- [ ] 10. 前端 UniApp 上传改造
+  - [ ] 10.1 创建 COS 上传服务
+    - 在 `uniapp/WorkCameraf/common` 中创建 `cosUpload.js`
+    - 实现获取预签名 URL 方法
+    - 实现直传 COS 方法（PUT 请求）
+    - _Requirements: 2.1, 2.2, 2.3, 2.4_
+  - [ ] 10.2 修改 server.js 添加 V3 接口调用
+    - 添加 `addWatermarkRecordV3` 方法
+    - 调用 `/addworkrecordv3` 接口
+    - _Requirements: 3.1, 3.2_
+  - [ ] 10.3 修改上传流程
+    - 修改拍照后的上传逻辑
+    - 先获取预签名 URL
+    - 并发上传到 COS（最多 3 个并发）
+    - 上传成功后调用 V3 接口保存记录
+    - _Requirements: 2.1, 2.2, 2.3, 2.4, 3.1_
+
+- [ ] 11. Checkpoint - 前端上传验证
+  - 确保前端可正常上传图片到 COS
+  - 确保工作记录正确保存
+  - 如有问题请询问用户
+
+- [ ] 12. CS 客户端项目搭建
+  - [ ] 12.1 创建 WinForms 项目
+    - 创建 `WorkCameraExport` 解决方案
+    - 配置 .NET 8 AOT 单文件发布
+    - 添加 EPPlus、SixLabors.ImageSharp 依赖
+    - _Requirements: 5.1, 7.3, 7.4_
+  - [ ] 12.2 创建 API 服务类
+    - 创建 `Services/ApiService.cs`
+    - 实现登录、查询、迁移等 API 调用
+    - _Requirements: 5.1, 5.2, 4.1_
+  - [ ] 12.3 创建 COS 服务类
+    - 创建 `Services/CosService.cs`
+    - 实现图片上传到 COS
+    - _Requirements: 9.2_
+
+- [ ] 13. CS 客户端登录模块
+  - [ ] 13.1 创建登录窗体
+    - 创建 `Forms/LoginForm.cs`
+    - 包含服务器地址、用户名、密码输入
+    - 实现记住登录状态功能
+    - _Requirements: 5.1, 5.2, 5.3, 5.4_
+
+- [ ] 14. CS 客户端导出模块
+  - [ ] 14.1 创建主窗体
+    - 创建 `Forms/MainForm.cs`
+    - 包含查询条件区域（日期、部门、人员、内容）
+    - 包含数据预览区域
+    - 包含导出进度区域
+    - _Requirements: 6.1, 6.2, 6.3, 7.5_
+  - [ ] 14.2 创建 Excel 服务类
+    - 创建 `Services/ExcelService.cs`
+    - 实现 Excel 生成逻辑
+    - 实现图片嵌入逻辑（100x60 像素，50% 压缩）
+    - _Requirements: 7.3, 7.4_
+  - [ ] 14.3 实现导出功能
+    - 实现分页获取数据
+    - 实现并发下载图片（最多 5 个并发）
+    - 实现进度显示
+    - 实现取消功能
+    - _Requirements: 7.1, 7.2, 7.5, 7.6, 7.7_
+
+- [ ] 15. CS 客户端迁移模块
+  - [ ] 15.1 创建迁移窗体
+    - 创建 `Forms/MigrationForm.cs`
+    - 包含筛选条件区域
+    - 包含待迁移记录列表
+    - 包含迁移进度区域
+    - _Requirements: 8.1, 8.2, 8.3, 8.4_
+  - [ ] 15.2 实现迁移功能
+    - 实现下载原图片
+    - 实现上传到 COS
+    - 实现调用 API 更新 URL
+    - 实现进度显示和取消功能
+    - _Requirements: 9.1, 9.2, 9.3, 9.4, 9.5, 9.6, 9.7_
+
+- [ ] 16. Final Checkpoint - 全功能验证
+  - 确保所有功能正常工作
+  - 确保所有测试通过
+  - 如有问题请询问用户
+
+## Notes
+
+- All tasks are required for complete implementation
+- Each task references specific requirements for traceability
+- Checkpoints ensure incremental validation
+- Property tests validate universal correctness properties
+- 后端使用 C# / .NET 8
+- 前端使用 UniApp (Vue.js)
+- CS 客户端使用 WinForms + .NET 8 AOT