Prepare ERP source for Gitea deployment

alembic/versions/af48d99d7321_merge_ds5_and_ds6_document_heads.py

@@ -0,0 +1,23 @@
+"""merge ds5 and ds6 document heads
+
+Revision ID: af48d99d7321
+Revises: 20260518_ds6_permanent_client_document_vault, 20260528_phase_ds5_secure_download_streaming
+Create Date: 2026-05-18 20:41:43.386276
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+revision: str = 'af48d99d7321'
+down_revision: Union[str, None] = ('20260518_ds6_permanent_client_document_vault', '20260528_phase_ds5_secure_download_streaming')
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+def upgrade() -> None:
+    pass
+
+def downgrade() -> None:
+    pass