feat(autorenewal): implement automatic subscription renewal system

alembic/versions/f5fbc1975807_id_unique_deleted_deprecated_tables.py

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+"""id->unique, deleted deprecated tables
+
+Revision ID: f5fbc1975807
+Revises: 92dfa9b572f1
+Create Date: 2026-05-18 17:08:56.792369
+
+"""
+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 = 'f5fbc1975807'
+down_revision: Union[str, Sequence[str], None] = '92dfa9b572f1'
+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_table('tickets')
+    op.create_unique_constraint(None, 'bills', ['id'])
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_constraint(None, 'bills', type_='unique')
+    op.create_table('tickets',
+    sa.Column('id', sa.INTEGER(), autoincrement=True, nullable=False),
+    sa.Column('creator_id', sa.BIGINT(), autoincrement=False, nullable=False),
+    sa.Column('thread_id', sa.BIGINT(), autoincrement=False, nullable=True),
+    sa.Column('status', postgresql.ENUM('OPEN', 'CLOSED', 'PENDING', name='ticketstatus'), autoincrement=False, nullable=False),
+    sa.PrimaryKeyConstraint('id', name=op.f('tickets_pkey')),
+    sa.UniqueConstraint('id', name=op.f('tickets_id_key'), postgresql_include=[], postgresql_nulls_not_distinct=False),
+    sa.UniqueConstraint('thread_id', name=op.f('tickets_thread_id_key'), postgresql_include=[], postgresql_nulls_not_distinct=False)
+    )
+    # ### end Alembic commands ###