修复前后端显示异常问题（受试者、中心、负责人、日期等）

backend/app/schemas/attachment.py

@@ -1,14 +1,17 @@
 import uuid
 from datetime import datetime
 
-from pydantic import BaseModel, ConfigDict
+from pydantic import BaseModel, ConfigDict, Field
+
+from app.schemas.user import UserDisplay
 
 
 class AttachmentRead(BaseModel):
     id: uuid.UUID
     filename: str
-    file_size: int
-    uploaded_by: uuid.UUID
+    file_size: int = Field(alias="size")
+    uploaded_by: UserDisplay | None = None
+    uploaded_by_id: uuid.UUID | None = None
     uploaded_at: datetime
 
-    model_config = ConfigDict(from_attributes=True)
+    model_config = ConfigDict(from_attributes=True, populate_by_name=True)

backend/app/schemas/member.py

@@ -3,6 +3,7 @@ from datetime import datetime
 from typing import Literal, Optional
 
 from pydantic import BaseModel, ConfigDict, Field
+from app.schemas.user import UserDisplay
 
 StudyRole = Literal["PM", "CRA", "PV", "IMP", "ADMIN"]
 
@@ -27,3 +28,7 @@ class StudyMemberRead(BaseModel):
     added_at: datetime
 
     model_config = ConfigDict(from_attributes=True)
+
+
+class StudyMemberReadWithUser(StudyMemberRead):
+    user: Optional[UserDisplay] = None

backend/app/schemas/milestone.py

@@ -4,12 +4,21 @@ from typing import Optional
 
 from pydantic import BaseModel, ConfigDict, Field
 
+from app.schemas.user import UserDisplay
+
+
+class SiteDisplay(BaseModel):
+    id: uuid.UUID
+    name: Optional[str] = None
+
+    model_config = ConfigDict(from_attributes=True)
 
 class MilestoneCreate(BaseModel):
     type: str
     name: Optional[str] = None
     planned_date: Optional[date] = None
     owner_id: Optional[uuid.UUID] = None
+    site_id: Optional[uuid.UUID] = None
     notes: Optional[str] = None
     status: str = Field(default="NOT_STARTED")
 
@@ -20,6 +29,7 @@ class MilestoneUpdate(BaseModel):
     actual_date: Optional[date] = None
     status: Optional[str] = None
     owner_id: Optional[uuid.UUID] = None
+    site_id: Optional[uuid.UUID] = None
     notes: Optional[str] = None
 
 
@@ -32,6 +42,9 @@ class MilestoneRead(BaseModel):
     actual_date: Optional[date]
     status: str
     owner_id: Optional[uuid.UUID]
+    site_id: Optional[uuid.UUID] = None
+    owner: Optional[UserDisplay] = None
+    site: Optional[SiteDisplay] = None
     notes: Optional[str]
     created_at: datetime
     updated_at: datetime

backend/app/schemas/task.py

@@ -4,6 +4,8 @@ from typing import Optional
 
 from pydantic import BaseModel, ConfigDict
 
+from app.schemas.user import UserDisplay
+
 
 class TaskCreate(BaseModel):
     milestone_id: Optional[uuid.UUID] = None
@@ -31,6 +33,7 @@ class TaskRead(BaseModel):
     title: str
     description: Optional[str]
     assignee_id: Optional[uuid.UUID]
+    assignee: Optional[UserDisplay] = None
     priority: str
     due_date: Optional[date]
     status: str

backend/app/schemas/user.py

@@ -7,6 +7,14 @@ from pydantic import BaseModel, ConfigDict, Field
 UserRole = Literal["PM", "CRA", "PV", "IMP", "ADMIN"]
 
 
+class UserDisplay(BaseModel):
+  id: uuid.UUID
+  username: str
+  display_name: Optional[str] = None
+
+  model_config = ConfigDict(from_attributes=True)
+
+
 class UserBase(BaseModel):
     username: str = Field(min_length=1)
     role: UserRole