fix(migration): 缩短 revision id 至 26 字符(修 alembic_version varchar(32) 截断致 0.2.1 部署失败)

invite_cash_account_and_compare_reward(38字符) > alembic_version.version_num varchar(32),
INSERT 时 psycopg StringDataRightTruncation → 部署 alembic 迁移失败。改为 invite_cash_compare_reward(26)。
该迁移是链末端(无后续 down_revision 依赖)、首次部署(任何环境都没应用过、PG DDL 事务失败已回滚无残留), 改 id 安全。

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

alembic/versions/invite_cash_compare_reward.py

@@ -1,6 +1,6 @@
 """invite cash account isolation + compare reward tracking (🅱-1)
 
-Revision ID: invite_cash_account_and_compare_reward
+Revision ID: invite_cash_compare_reward
 Revises: feedback_review_fields
 Create Date: 2026-06-23 00:00:00.000000
 
@@ -19,7 +19,7 @@ import sqlalchemy as sa
 
 
 # revision identifiers, used by Alembic.
-revision: str = 'invite_cash_account_and_compare_reward'
+revision: str = 'invite_cash_compare_reward'
 down_revision: Union[str, Sequence[str], None] = 'feedback_review_fields'
 branch_labels: Union[str, Sequence[str], None] = None
 depends_on: Union[str, Sequence[str], None] = None