feat: persist split user and bot audio

api/alembic/versions/efe356f488f9_add_extra_column_in_workflow_runs.py

@@ -0,0 +1,34 @@
+"""add extra column in workflow runs
+
+Revision ID: efe356f488f9
+Revises: 384be6596b36
+Create Date: 2026-06-16 12:24:30.081058
+
+"""
+
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision: str = "efe356f488f9"
+down_revision: Union[str, None] = "384be6596b36"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "workflow_runs",
+        sa.Column(
+            "extra",
+            sa.JSON(),
+            server_default=sa.text("'{}'::json"),
+            nullable=False,
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("workflow_runs", "extra")