refac: /users/all endpoint

backend/open_webui/models/users.py

@@ -74,6 +74,18 @@ class UserListResponse(BaseModel):
     total: int
 
 
+class UserInfoResponse(BaseModel):
+    id: str
+    name: str
+    email: str
+    role: str
+
+
+class UserInfoListResponse(BaseModel):
+    users: list[UserInfoResponse]
+    total: int
+
+
 class UserResponse(BaseModel):
     id: str
     name: str