fix: ruff warnings

docs/migration/v2.md

@@ -85,13 +85,17 @@ The `paginate` shorthand was an alias for `offset_paginate`. It has been removed
 === "Before (`v1`)"
 
     ```python
-    result = await UserCrud.paginate(session=session, page=2, items_per_page=20, schema=UserRead)
+    result = await UserCrud.paginate(
+        session=session, page=2, items_per_page=20, schema=UserRead
+    )
     ```
 
 === "Now (`v2`)"
 
     ```python
-    result = await UserCrud.offset_paginate(session=session, page=2, items_per_page=20, schema=UserRead)
+    result = await UserCrud.offset_paginate(
+        session=session, page=2, items_per_page=20, schema=UserRead
+    )
     ```
 
 ---
@@ -124,8 +128,11 @@ For shared base classes that are not meant to be raised directly, use `abstract=
 class BillingError(ApiException, abstract=True):
     """Base for all billing-related errors — not raised directly."""
 
+
 class PaymentRequiredError(BillingError):
-    api_error = ApiError(code=402, msg="Payment Required", desc="...", err_code="BILLING-402")
+    api_error = ApiError(
+        code=402, msg="Payment Required", desc="...", err_code="BILLING-402"
+    )
 ```
 
 ---

docs/migration/v3.md

@@ -45,12 +45,16 @@ Each new method accepts `search`, `filter`, and `order` boolean toggles (all `Tr
     ```python
     from fastapi_toolsets.crud import OrderByClause
 
+
     @router.get("/offset")
     async def list_articles_offset(
         session: SessionDep,
         params: Annotated[dict, Depends(ArticleCrud.offset_params(default_page_size=20))],
         filter_by: Annotated[dict, Depends(ArticleCrud.filter_params())],
-        order_by: Annotated[OrderByClause | None, Depends(ArticleCrud.order_params(default_field=Article.created_at))],
+        order_by: Annotated[
+            OrderByClause | None,
+            Depends(ArticleCrud.order_params(default_field=Article.created_at)),
+        ],
         search: str | None = None,
     ) -> OffsetPaginatedResponse[ArticleRead]:
         return await ArticleCrud.offset_paginate(
@@ -79,7 +83,9 @@ Each new method accepts `search`, `filter`, and `order` boolean toggles (all `Tr
             ),
         ],
     ) -> OffsetPaginatedResponse[ArticleRead]:
-        return await ArticleCrud.offset_paginate(session=session, **params, schema=ArticleRead)
+        return await ArticleCrud.offset_paginate(
+            session=session, **params, schema=ArticleRead
+        )
     ```
 
 The same pattern applies to `cursor_paginate_params()` and `paginate_params()`. To disable a feature, pass the toggle:
@@ -109,6 +115,7 @@ Model method callbacks (`on_create`, `on_delete`, `on_update`) and the `@watch`
     ```python
     from fastapi_toolsets.models import WatchedFieldsMixin, watch
 
+
     @watch("status")
     class Order(Base, UUIDMixin, WatchedFieldsMixin):
         __tablename__ = "orders"
@@ -131,21 +138,25 @@ Model method callbacks (`on_create`, `on_delete`, `on_update`) and the `@watch`
     ```python
     from fastapi_toolsets.models import ModelEvent, UUIDMixin, listens_for
 
+
     class Order(Base, UUIDMixin):
         __tablename__ = "orders"
         __watched_fields__ = ("status",)
 
         status: Mapped[str]
 
+
     @listens_for(Order, [ModelEvent.CREATE])
     async def on_order_created(order: Order, event_type: ModelEvent, changes: None):
         await notify_new_order(order.id)
 
+
     @listens_for(Order, [ModelEvent.UPDATE])
     async def on_order_updated(order: Order, event_type: ModelEvent, changes: dict):
         if "status" in changes:
             await notify_status_change(order.id, changes["status"])
 
+
     @listens_for(Order, [ModelEvent.DELETE])
     async def on_order_deleted(order: Order, event_type: ModelEvent, changes: None):
         await notify_order_cancelled(order.id)

docs/migration/v4.md

@@ -35,6 +35,8 @@ The function creates and manages its own **dedicated session** internally, yield
         user.balance += 100
 
     # With a custom lock mode
-    async with lock_tables(session_maker=session_maker, tables=[Order], mode=LockMode.EXCLUSIVE) as session:
+    async with lock_tables(
+        session_maker=session_maker, tables=[Order], mode=LockMode.EXCLUSIVE
+    ) as session:
         await process_order(session, order_id)
     ```

docs/migration/v5.md

@@ -24,9 +24,10 @@ Build one `Database` with your URL (or an existing `engine=`), then use the inst
     get_db = create_db_dependency(session_maker=SessionLocal)
     get_db_context = create_db_context(session_maker=SessionLocal)
 
+
     @app.get("/users")
-    async def list_users(session: AsyncSession = Depends(get_db)):
-        ...
+    async def list_users(session: AsyncSession = Depends(get_db)): ...
+
 
     async def seed():
         async with get_db_context() as session:
@@ -40,9 +41,10 @@ Build one `Database` with your URL (or an existing `engine=`), then use the inst
 
     db = Database(url="postgresql+asyncpg://...")
 
+
     @app.get("/users")
-    async def list_users(session: AsyncSession = Depends(db)):
-        ...
+    async def list_users(session: AsyncSession = Depends(db)): ...
+
 
     async def seed():
         async with db.session() as session:
@@ -89,7 +91,9 @@ The free `lock_tables(session_maker, tables, ...)` function still exists for cal
     ```python
     from fastapi_toolsets.db import lock_tables, LockMode
 
-    async with lock_tables(session_maker=session_maker, tables=[Order], mode=LockMode.EXCLUSIVE) as session:
+    async with lock_tables(
+        session_maker=session_maker, tables=[Order], mode=LockMode.EXCLUSIVE
+    ) as session:
         await process_order(session, order_id)
     ```
 
@@ -127,6 +131,7 @@ Both also change their first argument: instead of the fixture *function*, pass t
     ```python
     from fastapi_toolsets.fixtures import get_obj_by_attr, get_field_by_attr
 
+
     @fixtures.register(depends_on=["roles"])
     def users():
         admin_role = get_obj_by_attr(fixtures=roles, attr_name="name", value="admin")