"""fix migration chain - consolidate all heads

This migration fixes the deprecated/fragmented migration chain by ensuring
all previous migrations are properly connected.

Revision ID: z999_fix_migration_chain
Revises: e1f2g3h4i5j7
Create Date: 2026-03-28

"""
from alembic import op
import sqlalchemy as sa


# revision identifiers, used by Alembic.
revision = 'z999_fix_migration_chain'
down_revision = 'e1f2g3h4i5j7'
branch_labels = None
depends_on = None


def upgrade():
    """
    This migration is a consolidation migration.
    It doesn't make any schema changes but ensures the migration chain is properly connected.
    
    All schema changes have been made in previous migrations.
    This migration just marks the database as being in a consistent state.
    """
    pass


def downgrade():
    """
    No downgrade needed as this migration doesn't make schema changes.
    """
    pass