Initial Claude implementation

alembic/env.py

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+"""Alembic environment configured for async SQLAlchemy.
+
+The DB URL and target metadata come from the application so migrations always
+match the models and the active configuration.
+"""
+import asyncio
+from logging.config import fileConfig
+
+from sqlalchemy import pool
+from sqlalchemy.ext.asyncio import async_engine_from_config
+
+import app.models  # noqa: F401  (register models on Base.metadata)
+from alembic import context
+from app.core.config import settings
+from app.core.database import Base
+
+config = context.config
+config.set_main_option("sqlalchemy.url", settings.database_url)
+
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+target_metadata = Base.metadata
+
+
+def run_migrations_offline() -> None:
+    context.configure(
+        url=settings.database_url,
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+        render_as_batch=True,
+    )
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def do_run_migrations(connection) -> None:
+    context.configure(
+        connection=connection,
+        target_metadata=target_metadata,
+        render_as_batch=True,  # needed for SQLite ALTER support
+    )
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+async def run_migrations_online() -> None:
+    connectable = async_engine_from_config(
+        config.get_section(config.config_ini_section, {}),
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+    async with connectable.connect() as connection:
+        await connection.run_sync(do_run_migrations)
+    await connectable.dispose()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    asyncio.run(run_migrations_online())

alembic/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, 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:
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    ${downgrades if downgrades else "pass"}

alembic/versions/0001_initial.py

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+"""initial schema
+
+Revision ID: 0001_initial
+Revises:
+Create Date: 2026-01-01 00:00:00.000000
+"""
+from collections.abc import Sequence
+
+import sqlalchemy as sa
+
+from alembic import op
+
+revision: str = "0001_initial"
+down_revision: str | None = None
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "users",
+        sa.Column("id", sa.Integer(), primary_key=True),
+        sa.Column("email", sa.String(length=255), nullable=False),
+        sa.Column("hashed_password", sa.String(length=255), nullable=False),
+        sa.Column("full_name", sa.String(length=255), nullable=True),
+        sa.Column("is_active", sa.Boolean(), nullable=False, server_default=sa.true()),
+        sa.Column("is_superuser", sa.Boolean(), nullable=False, server_default=sa.false()),
+        sa.Column(
+            "created_at",
+            sa.DateTime(timezone=True),
+            server_default=sa.func.now(),
+            nullable=False,
+        ),
+    )
+    op.create_index("ix_users_email", "users", ["email"], unique=True)
+
+    op.create_table(
+        "roles",
+        sa.Column("id", sa.Integer(), primary_key=True),
+        sa.Column("name", sa.String(length=64), nullable=False),
+        sa.Column("description", sa.String(length=255), nullable=True),
+    )
+    op.create_index("ix_roles_name", "roles", ["name"], unique=True)
+
+    op.create_table(
+        "permissions",
+        sa.Column("id", sa.Integer(), primary_key=True),
+        sa.Column("name", sa.String(length=128), nullable=False),
+        sa.Column("description", sa.String(length=255), nullable=True),
+    )
+    op.create_index("ix_permissions_name", "permissions", ["name"], unique=True)
+
+    op.create_table(
+        "user_roles",
+        sa.Column("user_id", sa.Integer(), nullable=False),
+        sa.Column("role_id", sa.Integer(), nullable=False),
+        sa.ForeignKeyConstraint(["user_id"], ["users.id"], ondelete="CASCADE"),
+        sa.ForeignKeyConstraint(["role_id"], ["roles.id"], ondelete="CASCADE"),
+        sa.PrimaryKeyConstraint("user_id", "role_id"),
+    )
+
+    op.create_table(
+        "role_permissions",
+        sa.Column("role_id", sa.Integer(), nullable=False),
+        sa.Column("permission_id", sa.Integer(), nullable=False),
+        sa.ForeignKeyConstraint(["role_id"], ["roles.id"], ondelete="CASCADE"),
+        sa.ForeignKeyConstraint(["permission_id"], ["permissions.id"], ondelete="CASCADE"),
+        sa.PrimaryKeyConstraint("role_id", "permission_id"),
+    )
+
+    op.create_table(
+        "refresh_tokens",
+        sa.Column("id", sa.Integer(), primary_key=True),
+        sa.Column("jti", sa.String(length=64), nullable=False),
+        sa.Column("token_hash", sa.String(length=64), nullable=False),
+        sa.Column("user_id", sa.Integer(), nullable=False),
+        sa.Column("expires_at", sa.DateTime(timezone=True), nullable=False),
+        sa.Column("revoked", sa.Boolean(), nullable=False, server_default=sa.false()),
+        sa.Column(
+            "created_at",
+            sa.DateTime(timezone=True),
+            server_default=sa.func.now(),
+            nullable=False,
+        ),
+        sa.ForeignKeyConstraint(["user_id"], ["users.id"], ondelete="CASCADE"),
+    )
+    op.create_index("ix_refresh_tokens_jti", "refresh_tokens", ["jti"], unique=True)
+    op.create_index("ix_refresh_tokens_user_id", "refresh_tokens", ["user_id"])
+
+
+def downgrade() -> None:
+    op.drop_index("ix_refresh_tokens_user_id", table_name="refresh_tokens")
+    op.drop_index("ix_refresh_tokens_jti", table_name="refresh_tokens")
+    op.drop_table("refresh_tokens")
+    op.drop_table("role_permissions")
+    op.drop_table("user_roles")
+    op.drop_index("ix_permissions_name", table_name="permissions")
+    op.drop_table("permissions")
+    op.drop_index("ix_roles_name", table_name="roles")
+    op.drop_table("roles")
+    op.drop_index("ix_users_email", table_name="users")
+    op.drop_table("users")