细节优化——1

backend/app/api/v1/aes.py

@@ -1,3 +1,4 @@
+import json
 import uuid
 from datetime import date
 
@@ -46,6 +47,8 @@ async def create_ae(
     current_user=Depends(get_current_user),
 ) -> AERead:
     await _ensure_study_exists(db, study_id)
+    if ae_in.onset_date and ae_in.onset_date > date.today():
+        raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="Onset date cannot be in the future")
     member_role = await _get_member_role(db, study_id, current_user.id)
     if current_user.role != "ADMIN" and member_role not in ALLOWED_CREATE_ROLES:
         raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Insufficient permissions")
@@ -124,6 +127,8 @@ async def update_ae(
     current_user=Depends(get_current_user),
 ) -> AERead:
     await _ensure_study_exists(db, study_id)
+    if ae_in.onset_date and ae_in.onset_date > date.today():
+        raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="Onset date cannot be in the future")
     ae = await ae_crud.get_ae(db, ae_id)
     if not ae or ae.study_id != study_id:
         raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="AE not found")
@@ -142,12 +147,24 @@ async def update_ae(
         raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Insufficient permissions")
 
     old_status = ae.status
-    updated = await ae_crud.update_ae(db, ae, ae_in)
+    detail_before = {
+        "event": ae.term,
+        "onset_date": ae.onset_date,
+        "severity": ae.severity,
+        "status": ae.status,
+        "description": ae.description,
+    }
+    updated = await ae_crud.update_ae(db, study_id, ae, ae_in)
+    detail_after = {
+        "event": updated.term,
+        "onset_date": updated.onset_date,
+        "severity": updated.severity,
+        "status": updated.status,
+        "description": updated.description,
+    }
 
-    detail = None
     action = "UPDATE_AE"
     if ae_in.status and ae_in.status != old_status:
-        detail = f"AE {ae_id} status {old_status} -> {ae_in.status}"
         action = "AE_STATUS_CHANGE"
     await audit_crud.log_action(
         db,
@@ -155,7 +172,7 @@ async def update_ae(
         entity_type="ae",
         entity_id=ae_id,
         action=action,
-        detail=detail or "AE updated",
+        detail=json.dumps({"before": detail_before, "after": detail_after}, ensure_ascii=False, default=str),
         operator_id=current_user.id,
         operator_role=current_user.role,
     )

backend/app/api/v1/audit_logs.py

@@ -1,9 +1,9 @@
 import uuid
 
-from fastapi import APIRouter, Depends
+from fastapi import APIRouter, Depends, HTTPException, status
 from sqlalchemy.ext.asyncio import AsyncSession
 
-from app.core.deps import get_db_session, require_study_member
+from app.core.deps import get_db_session, require_roles, require_study_member
 from app.crud import audit as audit_crud
 from app.schemas.audit import AuditLogRead
 
@@ -20,6 +20,7 @@ async def list_audit_logs(
     entity_type: str | None = None,
     entity_id: uuid.UUID | None = None,
     action: str | None = None,
+    operator_id: uuid.UUID | None = None,
     skip: int = 0,
     limit: int = 100,
     db: AsyncSession = Depends(get_db_session),
@@ -30,7 +31,24 @@ async def list_audit_logs(
         entity_type=entity_type,
         entity_id=entity_id,
         action=action,
+        operator_id=operator_id,
         skip=skip,
         limit=limit,
     )
     return list(logs)
+
+
+@router.delete(
+    "/{log_id}",
+    status_code=status.HTTP_204_NO_CONTENT,
+    dependencies=[Depends(require_roles(["ADMIN"]))],
+)
+async def delete_audit_log(
+    study_id: uuid.UUID,
+    log_id: uuid.UUID,
+    db: AsyncSession = Depends(get_db_session),
+):
+    log = await audit_crud.get_log(db, log_id)
+    if not log or log.study_id != study_id:
+        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="Audit log not found")
+    await audit_crud.delete_log(db, log)

backend/app/api/v1/comments.py

@@ -7,7 +7,7 @@ from app.core.deps import get_current_user, get_db_session, require_study_member
 from app.crud import comment as comment_crud
 from app.crud import audit as audit_crud
 from app.crud import study as study_crud
-from app.schemas.comment import CommentCreate, CommentRead
+from app.schemas.comment import CommentCreate, CommentRead, CommentQuote
 
 router = APIRouter()
 
@@ -34,6 +34,18 @@ async def create_comment(
     current_user=Depends(get_current_user),
 ) -> CommentRead:
     await _ensure_study_exists(db, study_id)
+    quote = None
+    if comment_in.quote_comment_id:
+        quote = await comment_crud.get_comment(db, comment_in.quote_comment_id, include_deleted=True)
+        if (
+            not quote
+            or quote.study_id != study_id
+            or quote.entity_type != entity_type
+            or quote.entity_id != entity_id
+        ):
+            raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="引用评论不存在")
+        if quote.is_deleted:
+            raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="引用评论已删除")
     comment = await comment_crud.create_comment(
         db,
         study_id=study_id,
@@ -52,7 +64,15 @@ async def create_comment(
         operator_id=current_user.id,
         operator_role=current_user.role,
     )
-    return comment
+    return CommentRead(
+        id=comment.id,
+        content=comment.content,
+        created_by=comment.created_by,
+        created_at=comment.created_at,
+        quote_comment_id=comment.quote_comment_id,
+        quote=CommentQuote.model_validate(quote) if quote else None,
+        is_deleted=comment.is_deleted,
+    )
 
 
 @router.get(
@@ -68,4 +88,57 @@ async def list_comments(
 ) -> list[CommentRead]:
     await _ensure_study_exists(db, study_id)
     comments = await comment_crud.list_comments(db, study_id, entity_type, entity_id)
-    return list(comments)
+    quote_ids = {c.quote_comment_id for c in comments if c.quote_comment_id}
+    quote_map = await comment_crud.get_comments_by_ids(db, quote_ids, include_deleted=True)
+    return [
+        CommentRead(
+            id=c.id,
+            content=c.content,
+            created_by=c.created_by,
+            created_at=c.created_at,
+            quote_comment_id=c.quote_comment_id,
+            quote=CommentQuote.model_validate(quote_map.get(c.quote_comment_id)) if c.quote_comment_id else None,
+            is_deleted=c.is_deleted,
+        )
+        for c in comments
+    ]
+
+
+@router.delete(
+    "/{comment_id}",
+    status_code=status.HTTP_204_NO_CONTENT,
+    dependencies=[Depends(require_study_member())],
+)
+async def delete_comment(
+    study_id: uuid.UUID,
+    entity_type: str,
+    entity_id: uuid.UUID,
+    comment_id: uuid.UUID,
+    db: AsyncSession = Depends(get_db_session),
+    current_user=Depends(get_current_user),
+):
+    await _ensure_study_exists(db, study_id)
+    comment = await comment_crud.get_comment(db, comment_id, include_deleted=True)
+    if (
+        not comment
+        or comment.study_id != study_id
+        or comment.entity_type != entity_type
+        or comment.entity_id != entity_id
+    ):
+        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="Comment not found")
+    role_value = current_user.role.value if hasattr(current_user.role, "value") else current_user.role
+    if role_value != "ADMIN" and comment.created_by != current_user.id:
+        raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Insufficient permissions")
+    if comment.is_deleted:
+        return
+    await comment_crud.soft_delete_comment(db, comment)
+    await audit_crud.log_action(
+        db,
+        study_id=study_id,
+        entity_type=entity_type,
+        entity_id=entity_id,
+        action="DELETE_COMMENT",
+        detail=f"Comment deleted by {current_user.full_name}",
+        operator_id=current_user.id,
+        operator_role=current_user.role,
+    )

backend/app/api/v1/faq_categories.py

@@ -15,13 +15,9 @@ from app.utils.pagination import paginate
 router = APIRouter()
 
 
-def _check_permission_for_scope(study_id: uuid.UUID | None, current_user, member_role: str | None):
-    if study_id is None:
-        if current_user.role != "ADMIN":
-            raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Only admin can manage global FAQ")
-    else:
-        if current_user.role != "ADMIN" and member_role != "PM":
-            raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Insufficient permissions")
+def _check_permission_for_scope(study_id: uuid.UUID, current_user, member_role: str | None):
+    if current_user.role != "ADMIN" and member_role != "PM":
+        raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Insufficient permissions")
 
 
 @router.post(
@@ -36,15 +32,16 @@ async def create_category(
     db: AsyncSession = Depends(get_db_session),
     current_user=Depends(get_current_user),
 ) -> CategoryRead:
+    if not payload.study_id:
+        raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="study_id is required")
     existing = await category_crud.get_category_by_name(db, payload.study_id, payload.name)
     if existing:
         raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="分类名称已存在")
     member_role = None
-    if payload.study_id:
-        member = await member_crud.get_member(db, payload.study_id, current_user.id)
-        if not member:
-            raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Not a study member")
-        member_role = member.role_in_study
+    member = await member_crud.get_member(db, payload.study_id, current_user.id)
+    if not member and current_user.role != "ADMIN":
+        raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Not a study member")
+    member_role = member.role_in_study if member else None
     _check_permission_for_scope(payload.study_id, current_user, member_role)
     category = await category_crud.create_category(db, payload)
     await audit_crud.log_action(
@@ -68,16 +65,17 @@ async def create_category(
 )
 async def list_categories(
     study_id: uuid.UUID | None = None,
-    include_global: bool = True,
     is_active: bool | None = True,
     db: AsyncSession = Depends(get_db_session),
     current_user=Depends(get_current_user),
 ) -> list[CategoryRead]:
+    if not study_id:
+        raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="study_id is required")
     if study_id:
         member = await member_crud.get_member(db, study_id, current_user.id)
         if not member and current_user.role != "ADMIN":
             raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Not a study member")
-    categories = await category_crud.list_categories(db, study_id, include_global=include_global, is_active=is_active)
+    categories = await category_crud.list_categories(db, study_id, include_global=False, is_active=is_active)
     return paginate([CategoryRead.model_validate(c) for c in categories], total=len(categories))
 
 
@@ -105,11 +103,12 @@ async def update_category(
     existing = await category_crud.get_category_by_name(db, target_study_id, target_name)
     if existing and existing.id != category.id:
         raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="分类名称已存在")
-    if target_study_id:
-        member = await member_crud.get_member(db, target_study_id, current_user.id)
-        member_role = member.role_in_study if member else None
-        if not member and current_user.role != "ADMIN":
-            raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Not a study member")
+    if not target_study_id:
+        raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="study_id is required")
+    member = await member_crud.get_member(db, target_study_id, current_user.id)
+    member_role = member.role_in_study if member else None
+    if not member and current_user.role != "ADMIN":
+        raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Not a study member")
     _check_permission_for_scope(target_study_id, current_user, member_role)
     updated = await category_crud.update_category(db, category, payload)
     await audit_crud.log_action(

backend/app/api/v1/faqs.py

@@ -25,22 +25,14 @@ from app.utils.pagination import paginate
 router = APIRouter()
 
 
-def _check_write_permission(study_id: uuid.UUID | None, current_user, member_role: str | None):
-    if study_id is None:
-        if current_user.role != "ADMIN":
-            raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Only admin can manage global FAQ")
-    else:
-        if current_user.role != "ADMIN" and member_role != "PM":
-            raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Insufficient permissions")
+def _check_write_permission(study_id: uuid.UUID, current_user, member_role: str | None):
+    if current_user.role != "ADMIN" and member_role != "PM":
+        raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Insufficient permissions")
 
 
-def _check_create_permission(study_id: uuid.UUID | None, current_user, is_member: bool):
-    if study_id is None:
-        if current_user.role != "ADMIN":
-            raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Only admin can manage global FAQ")
-    else:
-        if current_user.role != "ADMIN" and not is_member:
-            raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Not a study member")
+def _check_create_permission(current_user, is_member: bool):
+    if current_user.role != "ADMIN" and not is_member:
+        raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Not a study member")
 
 
 @router.post(
@@ -55,6 +47,8 @@ async def create_faq(
     db: AsyncSession = Depends(get_db_session),
     current_user=Depends(get_current_user),
 ) -> FaqRead:
+    if not payload.study_id:
+        raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="study_id is required")
     cat = await category_crud.get_category(db, payload.category_id)
     if not cat:
         raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="Category not found")
@@ -62,11 +56,10 @@ async def create_faq(
         raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="Category scope mismatch")
     member_role = None
     is_member = False
-    if payload.study_id:
-        member = await member_crud.get_member(db, payload.study_id, current_user.id)
-        member_role = member.role_in_study if member else None
-        is_member = member is not None
-    _check_create_permission(payload.study_id, current_user, is_member)
+    member = await member_crud.get_member(db, payload.study_id, current_user.id)
+    member_role = member.role_in_study if member else None
+    is_member = member is not None
+    _check_create_permission(current_user, is_member)
     try:
         item = await faq_crud.create_item(db, payload, created_by=current_user.id)
     except ValueError as exc:
@@ -104,7 +97,6 @@ async def list_faqs(
     category_id: uuid.UUID | None = None,
     keyword: str | None = None,
     is_active: bool | None = None,
-    study_scope: str | None = "project",
     db: AsyncSession = Depends(get_db_session),
     current_user=Depends(get_current_user),
 ) -> list[FaqRead]:
@@ -118,16 +110,15 @@ async def list_faqs(
         membership_cache[sid] = role
         return role
 
-    if study_id:
-        if current_user.role != "ADMIN":
-            role = await _get_member_role(study_id)
-            if not role:
-                raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Not a study member")
+    if not study_id:
+        raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="study_id is required")
+    if current_user.role != "ADMIN":
+        role = await _get_member_role(study_id)
+        if not role:
+            raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Not a study member")
 
     if is_active is False and current_user.role != "ADMIN":
-        role = None
-        if study_id:
-            role = await _get_member_role(study_id)
+        role = await _get_member_role(study_id)
         if role != "PM":
             raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Insufficient permissions")
 
@@ -137,17 +128,17 @@ async def list_faqs(
         category_id=category_id,
         keyword=keyword,
         is_active=is_active,
-        study_scope=study_scope,
+        study_scope="project",
     )
 
     visible: list[FaqRead] = []
     for it in items:
-        if it.study_id and current_user.role != "ADMIN":
+        if current_user.role != "ADMIN":
             role = await _get_member_role(it.study_id)
             if not role:
                 continue
         if not it.is_active and current_user.role != "ADMIN":
-            role = await _get_member_role(it.study_id) if it.study_id else None
+            role = await _get_member_role(it.study_id)
             if role != "PM":
                 continue
         visible.append(FaqRead.model_validate(it))
@@ -168,15 +159,15 @@ async def get_faq(
     item = await faq_crud.get_item(db, item_id)
     if not item:
         raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="FAQ not found")
-    if item.study_id and current_user.role != "ADMIN":
+    if not item.study_id:
+        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="FAQ not found")
+    if current_user.role != "ADMIN":
         member = await member_crud.get_member(db, item.study_id, current_user.id)
         if not member:
             raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Not a study member")
     if not item.is_active and current_user.role not in {"ADMIN"}:
-        member_role = None
-        if item.study_id:
-            member = await member_crud.get_member(db, item.study_id, current_user.id)
-            member_role = member.role_in_study if member else None
+        member = await member_crud.get_member(db, item.study_id, current_user.id)
+        member_role = member.role_in_study if member else None
         if member_role != "PM":
             raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Inactive FAQ")
     return FaqRead.model_validate(item)
@@ -267,11 +258,12 @@ async def set_best_reply(
     item = await faq_crud.get_item(db, item_id)
     if not item:
         raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="FAQ not found")
+    if not item.study_id:
+        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="FAQ not found")
     is_member = False
-    if item.study_id:
-        member = await member_crud.get_member(db, item.study_id, current_user.id)
-        is_member = member is not None
-    _check_create_permission(item.study_id, current_user, is_member)
+    member = await member_crud.get_member(db, item.study_id, current_user.id)
+    is_member = member is not None
+    _check_create_permission(current_user, is_member)
     if payload.best_reply_id:
         reply = await reply_crud.get_reply(db, payload.best_reply_id)
         if not reply or reply.faq_id != item.id:
@@ -348,13 +340,14 @@ async def create_reply(
     item = await faq_crud.get_item(db, item_id)
     if not item:
         raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="FAQ not found")
+    if not item.study_id:
+        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="FAQ not found")
     if not payload.content.strip():
         raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="Reply content is required")
     is_member = False
-    if item.study_id:
-        member = await member_crud.get_member(db, item.study_id, current_user.id)
-        is_member = member is not None
-    _check_create_permission(item.study_id, current_user, is_member)
+    member = await member_crud.get_member(db, item.study_id, current_user.id)
+    is_member = member is not None
+    _check_create_permission(current_user, is_member)
     quote = None
     if payload.quote_reply_id:
         quote = await reply_crud.get_reply(db, payload.quote_reply_id)

backend/app/api/v1/milestones.py

@@ -1,10 +1,12 @@
 import uuid
+from datetime import date
 
 from fastapi import APIRouter, Depends, HTTPException, status
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.core.deps import get_current_user, get_db_session, require_study_member, require_study_roles
 from app.crud import audit as audit_crud
+from app.crud import attachment as attachment_crud
 from app.crud import milestone as milestone_crud
 from app.crud import study as study_crud
 from app.crud import user as user_crud
@@ -36,6 +38,8 @@ async def create_milestone(
     current_user=Depends(get_current_user),
 ) -> MilestoneRead:
     await _ensure_study_exists(db, study_id)
+    if milestone_in.planned_date and milestone_in.planned_date < date.today():
+        raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="计划日期不得早于今天")
     milestone = await milestone_crud.create(db, study_id, milestone_in)
     owner = None
     site = None
@@ -127,6 +131,15 @@ async def update_milestone(
     milestone = await milestone_crud.get(db, milestone_id)
     if not milestone or milestone.study_id != study_id:
         raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="Milestone not found")
+    if milestone_in.planned_date and milestone_in.planned_date < date.today():
+        raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="计划日期不得早于今天")
+    if milestone_in.actual_date and milestone_in.actual_date < date.today():
+        raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="实际日期不得早于今天")
+    if milestone_in.actual_date:
+        attachments = await attachment_crud.list_attachments(db, study_id, "ethics_node", milestone_id)
+        if not attachments:
+            raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="请先上传伦理批件后再更新实际日期")
+        milestone_in.status = "DONE"
     old_status = milestone.status
     updated = await milestone_crud.update(db, milestone, milestone_in)
     owner = None
@@ -164,3 +177,32 @@ async def update_milestone(
         created_at=updated.created_at,
         updated_at=updated.updated_at,
     )
+
+
+@router.delete(
+    "/{milestone_id}",
+    status_code=status.HTTP_204_NO_CONTENT,
+    dependencies=[Depends(require_study_member())],
+)
+async def delete_milestone(
+    study_id: uuid.UUID,
+    milestone_id: uuid.UUID,
+    db: AsyncSession = Depends(get_db_session),
+    current_user=Depends(get_current_user),
+) -> None:
+    await _ensure_study_exists(db, study_id)
+    milestone = await milestone_crud.get(db, milestone_id)
+    if not milestone or milestone.study_id != study_id:
+        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="Milestone not found")
+    await milestone_crud.delete_milestone(db, milestone)
+    await audit_crud.log_action(
+        db,
+        study_id=study_id,
+        entity_type="milestone",
+        entity_id=milestone_id,
+        action="DELETE_MILESTONE",
+        detail=f"Milestone {milestone_id} deleted",
+        operator_id=current_user.id,
+        operator_role=current_user.role,
+    )
+    return None

backend/app/api/v1/users.py

@@ -52,6 +52,17 @@ async def update_user(
     db_user = await user_crud.get_by_id(db, user_id)
     if not db_user:
         raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="User not found")
+    if db_user.role.value == "ADMIN":
+        requested_role = user_in.role
+        requested_status = user_in.status
+        if user_in.is_active is not None:
+            requested_status = "ACTIVE" if user_in.is_active else "DISABLED"
+        will_leave_admin = requested_role is not None and requested_role != "ADMIN"
+        will_disable = requested_status is not None and requested_status != "ACTIVE"
+        if (will_leave_admin or will_disable) and db_user.status.value == "ACTIVE":
+            active_admins = await user_crud.count_active_admins(db)
+            if active_admins <= 1:
+                raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="至少保留一个管理员账号")
     user = await user_crud.update_user(db, db_user, user_in)
     return user
 
@@ -71,6 +82,10 @@ async def delete_user(
         raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="User not found")
     if db_user.id == current_user.id:
         raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="不允许删除自己")
+    if db_user.role.value == "ADMIN" and db_user.status.value == "ACTIVE":
+        active_admins = await user_crud.count_active_admins(db)
+        if active_admins <= 1:
+            raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="至少保留一个管理员账号")
     has_membership = await member_crud.user_has_memberships(db, db_user.id)
     if has_membership:
         raise HTTPException(