修改get项目时的返回内容格式，去除多余字典层，直接返回列表。

api/manage_project.py

@@ -39,17 +39,15 @@ async def get_project(response: Response, session: SessionDep, current_user: Use
         raise HTTPException(status_code=404, detail="Project not found or you have no projects.")
 
     # 返回项目的基本信息
-    return {
-        "projects": [
-            {
-                "name": project.name,
-                "requirement": project.requirement,
-                "start_time": project.start_time,
-                "deadline": project.deadline
-            }
-            for project in projects
-        ]
-    }
+    return [
+        {
+            "name": project.name,
+            "requirement": project.requirement,
+            "start_time": project.start_time,
+            "deadline": project.deadline
+        }
+        for project in projects
+    ]
 
 
 # 新增与修改项目