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

apps/blockchain-node/migrations/README

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+Generic single-database configuration.

apps/blockchain-node/migrations/env.py

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+from __future__ import annotations
+
+from logging.config import fileConfig
+
+from sqlalchemy import engine_from_config
+from sqlalchemy import pool
+from sqlmodel import SQLModel
+
+from alembic import context
+
+from aitbc_chain.config import settings
+from aitbc_chain import models  # noqa: F401
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Ensure the database path exists and propagate URL to Alembic config
+settings.db_path.parent.mkdir(parents=True, exist_ok=True)
+config.set_main_option("sqlalchemy.url", f"sqlite:///{settings.db_path}")
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+# Use SQLModel metadata for autogeneration.
+target_metadata = SQLModel.metadata
+
+# other values from the config, defined by the needs of env.py,
+# can be acquired:
+# my_important_option = config.get_main_option("my_important_option")
+# ... etc.
+
+
+def run_migrations_offline() -> None:
+    """Run migrations in 'offline' mode.
+
+    This configures the context with just a URL
+    and not an Engine, though an Engine is acceptable
+    here as well.  By skipping the Engine creation
+    we don't even need a DBAPI to be available.
+
+    Calls to context.execute() here emit the given string to the
+    script output.
+
+    """
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url,
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online() -> None:
+    """Run migrations in 'online' mode.
+
+    In this scenario we need to create an Engine
+    and associate a connection with the context.
+
+    """
+    connectable = engine_from_config(
+        config.get_section(config.config_ini_section, {}),
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection, target_metadata=target_metadata
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

apps/blockchain-node/migrations/script.py.mako

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+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision: str = ${repr(up_revision)}
+down_revision: Union[str, Sequence[str], None] = ${repr(down_revision)}
+branch_labels: Union[str, Sequence[str], None] = ${repr(branch_labels)}
+depends_on: Union[str, Sequence[str], None] = ${repr(depends_on)}
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    ${downgrades if downgrades else "pass"}

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

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+"""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 ###

apps/blockchain-node/migrations/versions/e31f486f1484_baseline.py

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+"""baseline
+
+Revision ID: e31f486f1484
+Revises: 
+Create Date: 2025-09-27 05:58:27.490151
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = "e31f486f1484"
+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."""
+
+    op.create_table(
+        "block",
+        sa.Column("id", sa.Integer(), primary_key=True, nullable=False),
+        sa.Column("height", sa.Integer(), nullable=False),
+        sa.Column("hash", sa.String(), nullable=False),
+        sa.Column("parent_hash", sa.String(), nullable=False),
+        sa.Column("proposer", sa.String(), nullable=False),
+        sa.Column("timestamp", sa.DateTime(), nullable=False),
+        sa.Column("tx_count", sa.Integer(), nullable=False, server_default="0"),
+        sa.Column("state_root", sa.String(), nullable=True),
+    )
+    op.create_index("ix_block_height", "block", ["height"], unique=True)
+    op.create_index("ix_block_hash", "block", ["hash"], unique=True)
+    op.create_index("ix_block_timestamp", "block", ["timestamp"], unique=False)
+
+    op.create_table(
+        "transaction",
+        sa.Column("id", sa.Integer(), primary_key=True, nullable=False),
+        sa.Column("tx_hash", sa.String(), nullable=False),
+        sa.Column("block_height", sa.Integer(), nullable=True),
+        sa.Column("sender", sa.String(), nullable=False),
+        sa.Column("recipient", sa.String(), nullable=False),
+        sa.Column("payload", sa.JSON(), nullable=False),
+        sa.Column("created_at", sa.DateTime(), nullable=False),
+    )
+    op.create_index("ix_transaction_tx_hash", "transaction", ["tx_hash"], unique=True)
+    op.create_index(
+        "ix_transaction_block_height", "transaction", ["block_height"], unique=False
+    )
+    op.create_index(
+        "ix_transaction_created_at", "transaction", ["created_at"], unique=False
+    )
+
+    op.create_table(
+        "receipt",
+        sa.Column("id", sa.Integer(), primary_key=True, nullable=False),
+        sa.Column("job_id", sa.String(), nullable=False),
+        sa.Column("receipt_id", sa.String(), nullable=False),
+        sa.Column("block_height", sa.Integer(), nullable=True),
+        sa.Column("payload", sa.JSON(), nullable=False),
+        sa.Column("miner_signature", sa.JSON(), nullable=False),
+        sa.Column("coordinator_attestations", sa.JSON(), nullable=False),
+        sa.Column("minted_amount", sa.Integer(), nullable=True),
+        sa.Column("recorded_at", sa.DateTime(), nullable=False),
+    )
+    op.create_index("ix_receipt_job_id", "receipt", ["job_id"], unique=False)
+    op.create_index("ix_receipt_receipt_id", "receipt", ["receipt_id"], unique=True)
+    op.create_index("ix_receipt_block_height", "receipt", ["block_height"], unique=False)
+    op.create_index("ix_receipt_recorded_at", "receipt", ["recorded_at"], unique=False)
+
+    op.create_table(
+        "account",
+        sa.Column("address", sa.String(), nullable=False),
+        sa.Column("balance", sa.Integer(), nullable=False, server_default="0"),
+        sa.Column("nonce", sa.Integer(), nullable=False, server_default="0"),
+        sa.Column("updated_at", sa.DateTime(), nullable=False),
+        sa.PrimaryKeyConstraint("address"),
+    )
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+
+    op.drop_table("account")
+
+    op.drop_index("ix_receipt_recorded_at", table_name="receipt")
+    op.drop_index("ix_receipt_block_height", table_name="receipt")
+    op.drop_index("ix_receipt_receipt_id", table_name="receipt")
+    op.drop_index("ix_receipt_job_id", table_name="receipt")
+    op.drop_table("receipt")
+
+    op.drop_index("ix_transaction_created_at", table_name="transaction")
+    op.drop_index("ix_transaction_block_height", table_name="transaction")
+    op.drop_index("ix_transaction_tx_hash", table_name="transaction")
+    op.drop_table("transaction")
+
+    op.drop_index("ix_block_timestamp", table_name="block")
+    op.drop_index("ix_block_hash", table_name="block")
+    op.drop_index("ix_block_height", table_name="block")
+    op.drop_table("block")