feat: add board rule toggles for approval and review requirements

backend/migrations/versions/c2e9f1a6d4b8_add_board_pending_approval_status_gate.py

@@ -0,0 +1,55 @@
+"""add board rule toggles
+
+Revision ID: c2e9f1a6d4b8
+Revises: e2f9c6b4a1d3
+Create Date: 2026-02-12 23:55:00.000000
+
+"""
+
+from __future__ import annotations
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = "c2e9f1a6d4b8"
+down_revision = "e2f9c6b4a1d3"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "boards",
+        sa.Column(
+            "require_approval_for_done",
+            sa.Boolean(),
+            nullable=False,
+            server_default=sa.true(),
+        ),
+    )
+    op.add_column(
+        "boards",
+        sa.Column(
+            "require_review_before_done",
+            sa.Boolean(),
+            nullable=False,
+            server_default=sa.false(),
+        ),
+    )
+    op.add_column(
+        "boards",
+        sa.Column(
+            "block_status_changes_with_pending_approval",
+            sa.Boolean(),
+            nullable=False,
+            server_default=sa.false(),
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("boards", "block_status_changes_with_pending_approval")
+    op.drop_column("boards", "require_review_before_done")
+    op.drop_column("boards", "require_approval_for_done")