"""steering notes: owner tuning notes injected into every system prompt

Revision ID: 0003
Revises: 0002
Create Date: 2026-08-22

Phase 15 (steering-notes story): the owner can "tune" how Brain answers
from the chat UI. Notes live in ``steering_notes`` and are read into the
system prompt of every subsequent chat turn (``<tuning>`` section).
"""
from __future__ import annotations

import sqlalchemy as sa
from sqlalchemy.dialects import postgresql

from alembic import op

revision = "0003"
down_revision = "0002"
branch_labels = None
depends_on = None


def upgrade() -> None:
    op.create_table(
        "steering_notes",
        sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True),
        sa.Column("note", sa.Text(), nullable=False),
        sa.Column(
            "created_at",
            sa.DateTime(timezone=True),
            server_default=sa.func.now(),
            nullable=False,
        ),
    )


def downgrade() -> None:
    op.drop_table("steering_notes")