Phase 3 of Migration

backend/alembic/versions/c3d4e5f6a7b8_phase_3_staff_ui_prefs.py

@@ -0,0 +1,32 @@
+"""phase_3_staff_ui_prefs
+
+Adds ui_prefs JSONB column to the staff table (Phase 3 — staff auth cutover).
+Also corrects permissions to be nullable (sysadmin/admin have NULL permissions).
+
+Revision ID: c3d4e5f6a7b8
+Revises: b1c2d3e4f5a6
+Create Date: 2026-04-17 00:00:00.000000
+"""
+from typing import Sequence, Union
+import sqlalchemy as sa
+from sqlalchemy.dialects.postgresql import JSONB
+from alembic import op
+
+revision: str = "c3d4e5f6a7b8"
+down_revision: Union[str, None] = "b1c2d3e4f5a6"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "staff",
+        sa.Column("ui_prefs", JSONB, nullable=False, server_default="{}"),
+    )
+    # permissions was NOT NULL DEFAULT '{}' — relax to nullable for sysadmin/admin
+    op.alter_column("staff", "permissions", nullable=True)
+
+
+def downgrade() -> None:
+    op.drop_column("staff", "ui_prefs")
+    op.alter_column("staff", "permissions", nullable=False)