feat(annotation): 添加标注项目信息更新功能

- 引入 DatasetMappingUpdateRequest 请求模型支持 name、description、template_id 和 label_config 字段更新
- 在项目接口中添加 PUT /{project_id} 端点用于更新标注项目信息
- 实现更新逻辑包括映射记录查询、配置信息处理和数据库更新操作
- 集成标准响应格式返回更新结果
- 添加异常处理和日志记录确保操作可追溯性

runtime/datamate-python/app/module/annotation/interface/project.py

@@ -3,7 +3,7 @@ import math
 import uuid
 
 from fastapi import APIRouter, Depends, HTTPException, Query, Path
-from sqlalchemy import select
+from sqlalchemy import select, update
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.db.session import get_db
@@ -17,6 +17,7 @@ from ..service.template import AnnotationTemplateService
 from ..schema import (
     DatasetMappingCreateRequest,
     DatasetMappingCreateResponse,
+    DatasetMappingUpdateRequest,
     DeleteDatasetResponse,
     DatasetMappingResponse,
 )
@@ -382,3 +383,97 @@ async def delete_mapping(
     except Exception as e:
         logger.error(f"Error deleting mapping: {e}")
         raise HTTPException(status_code=500, detail="Internal server error")
+
+
+@router.put("/{project_id}", response_model=StandardResponse[DatasetMappingResponse])
+async def update_mapping(
+    project_id: str = Path(..., description="映射UUID（path param）"),
+    request: DatasetMappingUpdateRequest = None,
+    db: AsyncSession = Depends(get_db)
+):
+    """
+    更新标注项目信息
+
+    通过 path 参数 `project_id` 指定要更新的映射（映射的 UUID）。
+    支持更新的字段：
+    - name: 标注项目名称
+    - description: 标注项目描述
+    - template_id: 标注模板ID
+    - label_config: Label Studio XML配置
+    """
+    try:
+        logger.info(f"Update mapping request received: project_id={project_id!r}")
+
+        service = DatasetMappingService(db)
+
+        # 使用 mapping UUID 查询映射记录
+        mapping = await service.get_mapping_by_uuid(project_id)
+
+        if not mapping:
+            raise HTTPException(
+                status_code=404,
+                detail=f"Mapping not found: {project_id}"
+            )
+
+        # 构建更新数据
+        update_values = {}
+        if request.name is not None:
+            update_values["name"] = request.name
+
+        # 从 configuration 字段中读取和更新 description 和 label_config
+        configuration = {}
+        if mapping.configuration:
+            configuration = mapping.configuration.copy() if isinstance(mapping.configuration, dict) else {}
+
+        if request.description is not None:
+            configuration["description"] = request.description
+        if request.label_config is not None:
+            configuration["label_config"] = request.label_config
+
+        if configuration:
+            update_values["configuration"] = configuration
+
+        if request.template_id is not None:
+            update_values["template_id"] = request.template_id
+
+        if not update_values:
+            # 没有要更新的字段，直接返回当前数据
+            return StandardResponse(
+                code=200,
+                message="success",
+                data=mapping
+            )
+
+        # 执行更新
+        from datetime import datetime
+        update_values["updated_at"] = datetime.now()
+
+        result = await db.execute(
+            update(LabelingProject)
+            .where(LabelingProject.id == project_id)
+            .values(**update_values)
+        )
+        await db.commit()
+
+        if result.rowcount == 0:
+            raise HTTPException(
+                status_code=500,
+                detail="Failed to update mapping"
+            )
+
+        # 重新获取更新后的数据
+        updated_mapping = await service.get_mapping_by_uuid(project_id)
+
+        logger.info(f"Successfully updated mapping: {project_id}")
+
+        return StandardResponse(
+            code=200,
+            message="success",
+            data=updated_mapping
+        )
+
+    except HTTPException:
+        raise
+    except Exception as e:
+        logger.error(f"Error updating mapping: {e}")
+        raise HTTPException(status_code=500, detail="Internal server error")