"""Add resolved_by to approval_requests (F11/Astra).

Separates the assigned approver (approver_id — who the request was
addressed TO) from the actual decider (resolved_by — who decided).
Previously resolve_approval_request overwrote approver_id with the
acting user, destroying the assignment record.

Revision ID: 0146
Revises: 0145
"""

import sqlalchemy as sa
from sqlalchemy.dialects.postgresql import UUID as PGUUID

from alembic import op

revision = "0146"
down_revision = "0145"
branch_labels = None
depends_on = None


def upgrade() -> None:
    op.add_column(
        "approval_requests",
        sa.Column("resolved_by", PGUUID(as_uuid=True), nullable=True),
    )


def downgrade() -> None:
    op.drop_column("approval_requests", "resolved_by")