style(backend): ruff format 统一迁移脚本格式

存量迁移脚本未纳入格式化，与项目代码风格不一致（引号不统一、行宽未
收敛）。仅格式调整，无逻辑变更，不影响任何库的升级路径。

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

backend/alembic/versions/90653814a421_v10_工作台预警规则参数.py

@@ -11,6 +11,7 @@ Create Date: 2026-10-19 17:55:48.892998
 
 「同步连续失败」规则依赖 ⑥ T+ 同步，模块未建前不设参数、不产生条目。
 """
+
 from collections.abc import Sequence
 from datetime import date
 
@@ -19,8 +20,8 @@ import sqlalchemy as sa
 
 
 # revision identifiers, used by Alembic.
-revision: str = '90653814a421'
-down_revision: str | Sequence[str] | None = 'ba0217f5091b'
+revision: str = "90653814a421"
+down_revision: str | Sequence[str] | None = "ba0217f5091b"
 branch_labels: str | Sequence[str] | None = None
 depends_on: str | Sequence[str] | None = None
 

backend/alembic/versions/c7d2e5a81f30_v8_业务答复口径落实_审批开关默认_试用期参数_经理基数开关_台账分摊唯一键.py

@@ -34,10 +34,7 @@ depends_on = None
 def upgrade() -> None:
     """种子行级变更 + 台账唯一键扩展（无表结构新增/删除）。"""
     # 1. 审批开关默认值翻转（#5/#7：默认开启，业务可关闭）
-    op.execute(
-        "UPDATE param_definitions SET default_value = '1' "
-        "WHERE id IN (17, 18)"
-    )
+    op.execute("UPDATE param_definitions SET default_value = '1' WHERE id IN (17, 18)")
     # 时点化生效行：插新行不改历史（10-19 前仍按 0 解析）
     op.bulk_insert(
         sa.table(
@@ -188,6 +185,4 @@ def downgrade() -> None:
     )
 
     op.execute("DELETE FROM param_values WHERE id IN (23, 24)")
-    op.execute(
-        "UPDATE param_definitions SET default_value = '0' WHERE id IN (17, 18)"
-    )
+    op.execute("UPDATE param_definitions SET default_value = '0' WHERE id IN (17, 18)")

backend/alembic/versions/f3a8c2d61b47_v11_审批快照与方案版本化.py

@@ -43,9 +43,7 @@ def upgrade() -> None:
         "COMMENT '提交时内容快照（信封：schema_version/order_type/captured_at/data；历史单可空）' "
         "AFTER version_no"
     )
-    op.execute(
-        "CREATE INDEX idx_approval_orders_type_ref ON approval_orders (order_type, ref_id)"
-    )
+    op.execute("CREATE INDEX idx_approval_orders_type_ref ON approval_orders (order_type, ref_id)")
 
     op.execute(
         "ALTER TABLE business_secondary_allocations "