chore: Add Alembic merge migration for catalog module and notification channels.

app/alembic/versions/d2e3f4g5h6i7_merge_catalog_heads.py

@@ -0,0 +1,28 @@
+"""Merge catalog module with existing heads
+
+Revision ID: d2e3f4g5h6i7
+Revises: c1d2e3f4g5h6, add_notification_channels
+Create Date: 2025-11-29 19:30:00.000000
+
+"""
+from collections.abc import Sequence
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = 'd2e3f4g5h6i7'
+down_revision: tuple[str, str] = ('c1d2e3f4g5h6', 'add_notification_channels')
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
+
+
+def upgrade() -> None:
+    # No schema changes needed - this is just a merge migration
+    pass
+
+
+def downgrade() -> None:
+    # No schema changes needed - this is just a merge migration
+    pass