feat: redesign metadata as KV store, add custom properties and WOPI Discovery

Replace one-to-one FileMetadata table with flexible ObjectMetadata KV pairs,
add custom property definitions, WOPI Discovery auto-configuration, and
per-extension action URL support.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

routers/api/v1/object/custom_property/__init__.py

@@ -0,0 +1,178 @@
+"""
+用户自定义属性定义路由
+
+提供自定义属性模板的增删改查功能。
+用户可以定义类型化的属性模板（如标签、评分、分类等），
+然后通过元数据 PATCH 端点为对象设置属性值。
+
+路由前缀：/custom_property
+"""
+from typing import Annotated
+from uuid import UUID
+
+from fastapi import APIRouter, Depends, HTTPException
+from loguru import logger as l
+
+from middleware.auth import auth_required
+from middleware.dependencies import SessionDep
+from sqlmodels import (
+    CustomPropertyDefinition,
+    CustomPropertyCreateRequest,
+    CustomPropertyUpdateRequest,
+    CustomPropertyResponse,
+    User,
+)
+
+router = APIRouter(
+    prefix="/custom_property",
+    tags=["custom_property"],
+)
+
+
+@router.get(
+    path='',
+    summary='获取自定义属性定义列表',
+    description='获取当前用户的所有自定义属性定义，按 sort_order 排序。',
+)
+async def router_list_custom_properties(
+    session: SessionDep,
+    user: Annotated[User, Depends(auth_required)],
+) -> list[CustomPropertyResponse]:
+    """
+    获取自定义属性定义列表端点
+
+    认证：JWT token 必填
+
+    返回当前用户定义的所有自定义属性模板。
+    """
+    definitions = await CustomPropertyDefinition.get(
+        session,
+        CustomPropertyDefinition.owner_id == user.id,
+        fetch_mode="all",
+    )
+
+    return [
+        CustomPropertyResponse(
+            id=d.id,
+            name=d.name,
+            type=d.type,
+            icon=d.icon,
+            options=d.options,
+            default_value=d.default_value,
+            sort_order=d.sort_order,
+        )
+        for d in sorted(definitions, key=lambda x: x.sort_order)
+    ]
+
+
+@router.post(
+    path='',
+    summary='创建自定义属性定义',
+    description='创建一个新的自定义属性模板。',
+    status_code=204,
+)
+async def router_create_custom_property(
+    session: SessionDep,
+    user: Annotated[User, Depends(auth_required)],
+    request: CustomPropertyCreateRequest,
+) -> None:
+    """
+    创建自定义属性定义端点
+
+    认证：JWT token 必填
+
+    错误处理：
+    - 400: 请求数据无效
+    - 409: 同名属性已存在
+    """
+    # 检查同名属性
+    existing = await CustomPropertyDefinition.get(
+        session,
+        (CustomPropertyDefinition.owner_id == user.id) &
+        (CustomPropertyDefinition.name == request.name),
+    )
+    if existing:
+        raise HTTPException(status_code=409, detail="同名自定义属性已存在")
+
+    definition = CustomPropertyDefinition(
+        owner_id=user.id,
+        name=request.name,
+        type=request.type,
+        icon=request.icon,
+        options=request.options,
+        default_value=request.default_value,
+    )
+    await definition.save(session)
+
+    l.info(f"用户 {user.id} 创建了自定义属性: {request.name}")
+
+
+@router.patch(
+    path='/{id}',
+    summary='更新自定义属性定义',
+    description='更新自定义属性模板的名称、图标、选项等。',
+    status_code=204,
+)
+async def router_update_custom_property(
+    session: SessionDep,
+    user: Annotated[User, Depends(auth_required)],
+    id: UUID,
+    request: CustomPropertyUpdateRequest,
+) -> None:
+    """
+    更新自定义属性定义端点
+
+    认证：JWT token 必填
+
+    错误处理：
+    - 404: 属性定义不存在
+    - 403: 无权操作此属性
+    """
+    definition = await CustomPropertyDefinition.get(
+        session,
+        CustomPropertyDefinition.id == id,
+    )
+    if not definition:
+        raise HTTPException(status_code=404, detail="自定义属性不存在")
+
+    if definition.owner_id != user.id:
+        raise HTTPException(status_code=403, detail="无权操作此属性")
+
+    definition = await definition.update(session, request)
+
+    l.info(f"用户 {user.id} 更新了自定义属性: {id}")
+
+
+@router.delete(
+    path='/{id}',
+    summary='删除自定义属性定义',
+    description='删除自定义属性模板。注意：不会自动清理已使用该属性的元数据条目。',
+    status_code=204,
+)
+async def router_delete_custom_property(
+    session: SessionDep,
+    user: Annotated[User, Depends(auth_required)],
+    id: UUID,
+) -> None:
+    """
+    删除自定义属性定义端点
+
+    认证：JWT token 必填
+
+    错误处理：
+    - 404: 属性定义不存在
+    - 403: 无权操作此属性
+    """
+    definition = await CustomPropertyDefinition.get(
+        session,
+        CustomPropertyDefinition.id == id,
+    )
+    if not definition:
+        raise HTTPException(status_code=404, detail="自定义属性不存在")
+
+    if definition.owner_id != user.id:
+        raise HTTPException(status_code=403, detail="无权操作此属性")
+
+    await CustomPropertyDefinition.delete(session, instances=definition)
+
+    l.info(f"用户 {user.id} 删除了自定义属性: {id}")