feat: 更新用户组和选项模型，优化存储信息获取逻辑

models/group.py

@@ -1,44 +1,94 @@
 
-from typing import Optional, List, TYPE_CHECKING
-from sqlmodel import Field, Relationship, text, Column, JSON
+from typing import TYPE_CHECKING
+from sqlmodel import Field, Relationship, text
 from .base import TableBase
-from sqlmodel import SQLModel
 
 if TYPE_CHECKING:
     from .user import User
 
-class GroupOptions(SQLModel):
-    archive_download: bool | None = False
-    archive_task: bool | None = False
-    share_download: bool | None = False
-    share_free: bool | None = False
-    webdav_proxy: bool | None = False
-    aria2: bool | None = False
-    relocate: bool | None = False
-    source_batch: int | None = 10
-    redirected_source: bool | None = False
-    available_nodes: List[int] | None = []
-    select_node: bool | None = False
-    advance_delete: bool | None = False
+
+class GroupOptions(TableBase, table=True):
+    """用户组选项模型"""
+
+    group_id: int = Field(foreign_key="group.id", unique=True)
+    """关联的用户组ID"""
+
+    archive_download: bool = False
+    """是否允许打包下载"""
+
+    archive_task: bool = False
+    """是否允许创建打包任务"""
+
+    share_download: bool = False
+    """是否允许分享下载"""
+
+    share_free: bool = False
+    """是否免积分分享"""
+
+    webdav_proxy: bool = False
+    """是否允许WebDAV代理"""
+
+    aria2: bool = False
+    """是否允许使用aria2"""
+
+    relocate: bool = False
+    """是否允许文件重定位"""
+
+    source_batch: int = 10
+    """批量获取源地址数量"""
+
+    redirected_source: bool = False
+    """是否使用重定向源"""
+
+    available_nodes: str = "[]"
+    """可用节点ID列表（JSON数组）"""
+
+    select_node: bool = False
+    """是否允许选择节点"""
+
+    advance_delete: bool = False
+    """是否允许高级删除"""
+
+    # 反向关系
+    group: "Group" = Relationship(back_populates="options")
+
 
 class Group(TableBase, table=True):
     """用户组模型"""
 
-    name: str = Field(max_length=255, unique=True, description="用户组名")
-    policies: str | None = Field(default=None, max_length=255, description="允许的策略ID列表，逗号分隔")
-    max_storage: int = Field(default=0, sa_column_kwargs={"server_default": "0"}, description="最大存储空间（字节）")
-    share_enabled: bool = Field(default=False, sa_column_kwargs={"server_default": text("false")}, description="是否允许创建分享")
-    web_dav_enabled: bool = Field(default=False, sa_column_kwargs={"server_default": text("false")}, description="是否允许使用WebDAV")
-    admin: bool = Field(default=False, description="是否为管理员组")
-    speed_limit: int = Field(default=0, sa_column_kwargs={"server_default": "0"}, description="速度限制 (KB/s), 0为不限制")
-    options: GroupOptions = Field(default=GroupOptions, sa_column=Column(JSON), description="其他选项")
+    name: str = Field(max_length=255, unique=True)
+    """用户组名"""
+
+    policies: str | None = Field(default=None, max_length=255)
+    """允许的策略ID列表，逗号分隔"""
+
+    max_storage: int = Field(default=0, sa_column_kwargs={"server_default": "0"})
+    """最大存储空间（字节）"""
+
+    share_enabled: bool = Field(default=False, sa_column_kwargs={"server_default": text("false")})
+    """是否允许创建分享"""
+
+    web_dav_enabled: bool = Field(default=False, sa_column_kwargs={"server_default": text("false")})
+    """是否允许使用WebDAV"""
+
+    admin: bool = False
+    """是否为管理员组"""
+
+    speed_limit: int = Field(default=0, sa_column_kwargs={"server_default": "0"})
+    """速度限制 (KB/s), 0为不限制"""
+
+    # 一对一关系：用户组选项
+    options: GroupOptions | None = Relationship(
+        back_populates="group",
+        sa_relationship_kwargs={"uselist": False}
+    )
 
     # 关系：一个组可以有多个用户
-    user: List["User"] = Relationship(
+    user: list["User"] = Relationship(
         back_populates="group",
         sa_relationship_kwargs={"foreign_keys": "User.group_id"}
     )
-    previous_user: List["User"] = Relationship(
+    previous_user: list["User"] = Relationship(
         back_populates="previous_group",
         sa_relationship_kwargs={"foreign_keys": "User.previous_group_id"}
-    )
+    )