"""gpu_job.triage_status — the probe's verdict on an errored job's FILE

Failure triage (#125): a periodic sweep probes each errored image's file
(sha256 + decode, verify_integrity's machinery) exactly once and stores the
verdict here — 'defect' (the file is bad: recovery material, excluded from
/retry_errors) or 'file_ok' (failure was operational, safe to retry). NULL
means not yet probed; selecting on NULL is what makes the sweep resumable.
No index: the errored slice the sweep scans is tiny by design (tombstones).

Revision ID: 0072
Revises: 0071
Create Date: 2026-07-02
"""
from typing import Sequence, Union

import sqlalchemy as sa
from alembic import op

revision: str = "0072"
down_revision: Union[str, None] = "0071"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    op.add_column(
        "gpu_job", sa.Column("triage_status", sa.String(16), nullable=True)
    )


def downgrade() -> None:
    op.drop_column("gpu_job", "triage_status")