1、后台/teams需要可以设置管理人，后台只给这个管理人分配积分，然后前台管理员自己分配积分

2、前台判断用户是管理人，左下角显示团队管理
3、团队管理可以看到团队的人员、分配人员积分、人员的积分情况的功能
4、团队管理还可以邀请用户，比如生成个链接，未注册需要注册绑定团队，已注册用户访问弹窗是否加入这个团队，然后都需要管理同意才可以加入团队

video-gen-api/app/api/admin/team.py

@@ -2,18 +2,57 @@ from __future__ import annotations
 
 import json
 
-from fastapi import APIRouter, Depends, Query
+from fastapi import APIRouter, Body, Depends, Query
+from sqlalchemy import select
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.dependencies import get_admin_user, get_db
+from app.models.team import Team
 from app.models.user import User
 from app.schemas.team import TeamCreate, TeamListOut, TeamOptionOut, TeamOut, TeamUpdate
+from app.schemas.team_manager import SetManagerRequest
 from app.services.operation_log import log_operation
+from app.services.team_manager_service import set_team_manager
 from app.services.team_service import create_team, list_team_options, list_teams, soft_delete_team, update_team
 
 router = APIRouter(prefix="/admin/teams", tags=["admin-teams"])
 
 
+async def _team_detail_payload(db: AsyncSession, team: Team) -> dict:
+    """构造返回团队详情，包含 manager_name。"""
+    payload = {
+        "id": team.id,
+        "name": team.name,
+        "code": getattr(team, "code", None),
+        "description": getattr(team, "description", None),
+        "status": getattr(team, "status", "active"),
+        "sort_order": getattr(team, "sort_order", 0) or 0,
+        "member_count": 0,
+        "created_at": team.created_at,
+        "updated_at": team.updated_at,
+        "manager_id": getattr(team, "manager_id", None),
+        "manager_name": None,
+    }
+    # 查询成员数和管理人用户名
+    from sqlalchemy import func
+    from app.enums.user import UserType
+    member_count = (await db.execute(
+        select(func.count(User.id)).where(
+            User.user_type == UserType.FRONTEND.value,
+            User.team_id == team.id,
+        )
+    )).scalar() or 0
+    payload["member_count"] = int(member_count)
+
+    if getattr(team, "manager_id", None):
+        mgr = await db.execute(
+            select(User.username).where(User.id == team.manager_id).limit(1)
+        )
+        payload["manager_name"] = mgr.scalar_one_or_none()
+
+    return payload
+
+
 @router.get("", response_model=TeamListOut)
 async def list_admin_teams(
     page: int = Query(1, ge=1),
@@ -51,17 +90,7 @@ async def create_admin_team(
         "/admin/teams",
         detail=json.dumps({"after": req.model_dump()}, ensure_ascii=False),
     )
-    return {
-        "id": team.id,
-        "name": team.name,
-        "code": team.code,
-        "description": team.description,
-        "status": team.status,
-        "sort_order": team.sort_order,
-        "member_count": 0,
-        "created_at": team.created_at,
-        "updated_at": team.updated_at,
-    }
+    return await _team_detail_payload(db, team)
 
 
 @router.put("/{team_id}", response_model=TeamOut)
@@ -81,17 +110,33 @@ async def update_admin_team(
         f"/admin/teams/{team_id}",
         detail=json.dumps({"before": before, "after": after}, ensure_ascii=False),
     )
-    return {
-        "id": team.id,
-        "name": team.name,
-        "code": team.code,
-        "description": team.description,
-        "status": team.status,
-        "sort_order": team.sort_order,
-        "member_count": 0,
-        "created_at": team.created_at,
-        "updated_at": team.updated_at,
-    }
+    return await _team_detail_payload(db, team)
+
+
+@router.put("/{team_id}/manager", response_model=TeamOut)
+async def set_team_manager_endpoint(
+    team_id: str,
+    req: SetManagerRequest = Body(...),
+    admin: User = Depends(get_admin_user),
+    db: AsyncSession = Depends(get_db),
+):
+    team = await set_team_manager(db, team_id, req.user_id)
+    manager_name = None
+    if team.manager_id:
+        mgr = await db.execute(
+            select(User.username).where(User.id == team.manager_id).limit(1)
+        )
+        manager_name = mgr.scalar_one_or_none()
+    await log_operation(
+        db,
+        admin.id,
+        admin.username,
+        f"设置团队管理人 {team.name}: {manager_name or '取消'}",
+        "PUT",
+        f"/admin/teams/{team_id}/manager",
+        detail=json.dumps({"manager_id": req.user_id}, ensure_ascii=False),
+    )
+    return await _team_detail_payload(db, team)
 
 
 @router.delete("/{team_id}")