Workplan consistency optimization

migrations/versions/f1a2b3c4d5e6_workplan_file_backing.py

@@ -0,0 +1,31 @@
+"""add workplan file backing metadata for remote API index
+
+Revision ID: f1a2b3c4d5e6
+Revises: e9f0a1b2c3d4
+Create Date: 2026-07-03
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+revision = "f1a2b3c4d5e6"
+down_revision = "e9f0a1b2c3d4"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.add_column("workplans", sa.Column("backing_filename", sa.String(255), nullable=True))
+    op.add_column("workplans", sa.Column("backing_relative_path", sa.Text(), nullable=True))
+    op.add_column("workplans", sa.Column("backing_archived", sa.Boolean(), nullable=True))
+    op.add_column(
+        "workplans",
+        sa.Column("backing_synced_at", sa.DateTime(timezone=True), nullable=True),
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("workplans", "backing_synced_at")
+    op.drop_column("workplans", "backing_archived")
+    op.drop_column("workplans", "backing_relative_path")
+    op.drop_column("workplans", "backing_filename")