Intermediate field mapping table migration

lending-poc/alembic/versions/0006_create_intermediate_field_mapping_table.py

@@ -0,0 +1,34 @@
+"""create intermediate_field_mapping table
+
+Revision ID: 0006_create_intermediate_field_mapping_table
+Revises: 
+Create Date: 2026-08-11 15:05:00.000000
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision: str = '0006_create_intermediate_field_mapping_table'
+down_revision: Union[str, None] = None
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        'intermediate_field_mapping',
+        sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+        sa.Column('case_id', sa.Integer(), nullable=False),
+        sa.Column('field_mapper_output', postgresql.JSONB(astext_type=sa.Text()), nullable=True),
+        sa.Column('processing_date', sa.DateTime(), nullable=True),
+        sa.Column('validated', sa.Boolean(), nullable=True),
+        sa.PrimaryKeyConstraint('id')
+    )
+
+
+def downgrade() -> None:
+    op.drop_table('intermediate_field_mapping')