chore: initialize monorepo with project scaffolding, configs, and CI setup

apps/blockchain-node/migrations/versions/80bc0020bde2_add_block_relationships.py

@@ -0,0 +1,34 @@
+"""add block relationships
+
+Revision ID: 80bc0020bde2
+Revises: e31f486f1484
+Create Date: 2025-09-27 06:02:11.656859
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = '80bc0020bde2'
+down_revision: Union[str, Sequence[str], None] = 'e31f486f1484'
+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.create_foreign_key(None, 'receipt', 'block', ['block_height'], ['height'])
+    op.create_foreign_key(None, 'transaction', 'block', ['block_height'], ['height'])
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_constraint(None, 'transaction', type_='foreignkey')
+    op.drop_constraint(None, 'receipt', type_='foreignkey')
+    # ### end Alembic commands ###