feat: cron worker for renewal notifs

alembic/versions/af1c3d7e4b20_remove_service_notification_expiry_unique.py

@@ -0,0 +1,32 @@
+"""Remove global service notification expiry uniqueness.
+
+Revision ID: af1c3d7e4b20
+Revises: ee6174eeef14
+Create Date: 2026-08-20 00:00:00.000000
+"""
+
+from typing import Sequence, Union
+
+from alembic import op
+
+
+revision: str = "af1c3d7e4b20"
+down_revision: Union[str, Sequence[str], None] = "ee6174eeef14"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.drop_constraint(
+        "service_notifications_sub_expires_at_key",
+        "service_notifications",
+        type_="unique",
+    )
+
+
+def downgrade() -> None:
+    op.create_unique_constraint(
+        "service_notifications_sub_expires_at_key",
+        "service_notifications",
+        ["sub_expires_at"],
+    )