add db migrations

migrations/versions/4b57e6113ae1_init_tables.py

@@ -0,0 +1,39 @@
+"""init tables
+
+Revision ID: 4b57e6113ae1
+Revises: 
+Create Date: 2025-11-20 22:07:59.558088
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision: str = '4b57e6113ae1'
+down_revision: Union[str, Sequence[str], None] = None
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index(op.f('ix_apscheduler_jobs_next_run_time'), table_name='apscheduler_jobs')
+    op.drop_table('apscheduler_jobs')
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('apscheduler_jobs',
+    sa.Column('id', sa.VARCHAR(length=191), autoincrement=False, nullable=False),
+    sa.Column('next_run_time', sa.DOUBLE_PRECISION(precision=53), autoincrement=False, nullable=True),
+    sa.Column('job_state', postgresql.BYTEA(), autoincrement=False, nullable=False),
+    sa.PrimaryKeyConstraint('id', name=op.f('apscheduler_jobs_pkey'))
+    )
+    op.create_index(op.f('ix_apscheduler_jobs_next_run_time'), 'apscheduler_jobs', ['next_run_time'], unique=False)
+    # ### end Alembic commands ###