feat: 重构主题相关逻辑，移动 ThemeResponse 到 color.py，更新相关引用，优化目录路径处理

models/__init__.py

@@ -2,7 +2,6 @@ from . import response
 
 from .user import (
     LoginRequest,
-    ThemeResponse,
     TokenResponse,
     User,
     UserBase,
@@ -12,6 +11,7 @@ from .user import (
     WebAuthnInfo,
 )
 from .user_authn import AuthnResponse, UserAuthn
+from .color import ThemeResponse
 
 from .download import Download
 from .group import Group, GroupBase, GroupOptionsBase, GroupResponse

models/color.py

@@ -0,0 +1,31 @@
+from .base import SQLModelBase
+
+class ThemeResponse(SQLModelBase):
+    """主题响应 DTO"""
+
+    primary: str = "#3f51b5"
+    """主色调"""
+
+    secondary: str = "#f50057"
+    """次要色"""
+
+    accent: str = "#9c27b0"
+    """强调色"""
+
+    dark: str = "#1d1d1d"
+    """深色"""
+
+    dark_page: str = "#121212"
+    """深色页面背景"""
+
+    positive: str = "#21ba45"
+    """正面/成功色"""
+
+    negative: str = "#c10015"
+    """负面/错误色"""
+
+    info: str = "#31ccec"
+    """信息色"""
+
+    warning: str = "#f2c037"
+    """警告色"""

models/migration.py

@@ -1,6 +1,6 @@
 
 from .setting import Setting, SettingsType
-from .user import ThemeResponse
+from .color import ThemeResponse
 from pkg.conf.appmeta import BackendVersion
 from pkg.password.pwd import Password
 from loguru import logger as log
@@ -225,7 +225,7 @@ async def init_default_user() -> None:
 
             # 为管理员创建根目录（使用默认存储策略）
             await Object(
-                name="~",
+                name="my",
                 type=ObjectType.FOLDER,
                 owner_id=admin_user.id,
                 parent_id=None,

models/object.py

@@ -110,7 +110,7 @@ class Object(ObjectBase, TableBase, table=True):
     合并了原有的 File 和 Folder 模型，通过 type 字段区分文件和目录。
 
     根目录规则：
-    - 每个用户有一个显式根目录对象（name="~", parent_id=NULL）
+    - 每个用户有一个显式根目录对象（name="my", parent_id=NULL）
     - 用户创建的文件/文件夹的 parent_id 指向根目录或其他文件夹的 id
     - 根目录的 policy_id 指定用户默认存储策略
     """
@@ -138,6 +138,9 @@ class Object(ObjectBase, TableBase, table=True):
     type: ObjectType
     """对象类型：file 或 folder"""
 
+    password: str | None = Field(default=None, max_length=255)
+    """对象独立密码（仅当用户为对象单独设置密码时有效）"""
+
     # ==================== 文件专属字段 ====================
 
     source_name: str | None = None
@@ -149,6 +152,7 @@ class Object(ObjectBase, TableBase, table=True):
     upload_session_id: str | None = Field(default=None, max_length=255, unique=True, index=True)
     """分块上传会话ID（仅文件有效）"""
 
+    # [TODO] 拆分
     file_metadata: str | None = None
     """文件元数据 (JSON格式)，仅文件有效"""
 
@@ -227,7 +231,10 @@ class Object(ObjectBase, TableBase, table=True):
         :return: Object 或 None
         """
         path = path.strip()
-        if not path or path == "/" or path == "~":
+        if not path:
+            raise ValueError("路径不能为空")
+
+        if path in ["/my"]:
             return await cls.get_root(session, user_id)
 
         # 移除开头的斜杠并分割路径

models/user.py

@@ -34,6 +34,13 @@ class AvatarType(StrEnum):
     GRAVATAR = "gravatar"
     FILE = "file"
 
+class ThemeType(StrEnum):
+    """主题类型枚举"""
+    
+    LIGHT = "light"
+    DARK = "dark"
+    SYSTEM = "system"
+
 
 # ==================== Base 模型 ====================
 
@@ -90,37 +97,6 @@ class WebAuthnInfo(SQLModelBase):
     """支持的传输方式"""
 
 
-class ThemeResponse(SQLModelBase):
-    """主题响应 DTO"""
-
-    primary: str = "#3f51b5"
-    """主色调"""
-
-    secondary: str = "#f50057"
-    """次要色"""
-
-    accent: str = "#9c27b0"
-    """强调色"""
-
-    dark: str = "#1d1d1d"
-    """深色"""
-
-    dark_page: str = "#121212"
-    """深色页面背景"""
-
-    positive: str = "#21ba45"
-    """正面/成功色"""
-
-    negative: str = "#c10015"
-    """负面/错误色"""
-
-    info: str = "#31ccec"
-    """信息色"""
-
-    warning: str = "#f2c037"
-    """警告色"""
-
-
 class TokenResponse(SQLModelBase):
     """访问令牌响应 DTO"""
 
@@ -152,9 +128,6 @@ class UserResponse(UserBase):
     created_at: datetime
     """用户创建时间"""
 
-    preferred_theme: ThemeResponse | None = None
-    """用户首选主题"""
-
     anonymous: bool = False
     """是否为匿名用户"""
 
@@ -253,23 +226,21 @@ class User(UserBase, TableBase, table=True):
     avatar: str = Field(default="default", max_length=255)
     """头像地址"""
 
-    options: str | None = None
-    """[TODO] 用户个人设置 需要更改，参考上方的需求"""
-
-    github_open_id: str | None = Field(default=None, unique=True, index=True)
-    """Github OpenID"""
-
-    qq_open_id: str | None = Field(default=None, unique=True, index=True)
-    """QQ OpenID"""
-
     score: int = Field(default=0, sa_column_kwargs={"server_default": "0"}, ge=0)
     """用户积分"""
 
     group_expires: datetime | None = None
     """当前用户组过期时间"""
 
-    phone: str | None = Field(default=None, max_length=32, unique=True, index=True)
-    """手机号"""
+    # Option 相关字段
+    theme: ThemeType = Field(default=ThemeType.SYSTEM, sa_column_kwargs={"server_default": "system"})
+    """主题类型: light/dark/system"""
+
+    language: str = Field(default="zh-CN", max_length=5, sa_column_kwargs={"server_default": "zh-CN"})
+    """语言偏好"""
+
+    timezone: int = Field(default=8, ge=-12, le=12, sa_column_kwargs={"server_default": "8"})
+    """时区，UTC 偏移小时数"""
 
     # 外键
     group_id: int = Field(foreign_key="group.id", index=True)
@@ -278,7 +249,6 @@ class User(UserBase, TableBase, table=True):
     previous_group_id: int | None = Field(default=None, foreign_key="group.id")
     """之前的用户组ID（用于过期后恢复）"""
 
-    # [TODO] 待考虑：根目录 Object ID
 
     # 关系
     group: "Group" = Relationship(