"""add debug_sessions.draft — the issue being written from a session (E16 S3)

Revision ID: 0090_debug_session_draft
Revises: 0089_debug_sessions
Create Date: 2026-09-19

The composer saves as it goes: the title, the rendered markdown body that an export or an issue
carries, the log rows the user took out, and the form's own fields so reopening it later (Settings →
Diagnosztika lists past sessions) shows what was written. NULL until the composer first saves.
"""

import sqlalchemy as sa
from alembic import op
from sqlalchemy.dialects.postgresql import JSONB

revision: str = "0090_debug_session_draft"
down_revision: str | None = "0089_debug_sessions"
branch_labels: str | None = None
depends_on: str | None = None


def upgrade() -> None:
    op.add_column("debug_sessions", sa.Column("draft", JSONB, nullable=True))


def downgrade() -> None:
    op.drop_column("debug_sessions", "draft")