Epic 3: Economy & Billing Engine (Pénzügyi Motor)

backend/migrations/versions/92cdd5b64115_add_atomic_billing_engine_.py

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+"""Add atomic billing engine: ActiveVouchers, FinancialLedger enhancements
+
+Revision ID: 92cdd5b64115
+Revises: 4f083e0ad046
+Create Date: 2026-03-08 12:50:17.111838
+
+"""
+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 = '92cdd5b64115'
+down_revision: Union[str, Sequence[str], None] = '4f083e0ad046'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    pass
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    pass