chore: fix all ruff lint errors + format — 0 errors, 306 tests pass

app/core/db/__init__.py

@@ -3,10 +3,14 @@
 from __future__ import annotations
 
 import contextlib
+import uuid
 from collections.abc import AsyncGenerator
-from typing import Any
+from datetime import datetime
+from typing import Any  # noqa: F401
 
-from sqlalchemy import event as sa_event
+from sqlalchemy import DateTime, String, func, text  # noqa: F401
+from sqlalchemy import event as sa_event  # noqa: F401
+from sqlalchemy.dialects.postgresql import UUID as PGUUID
 from sqlalchemy.ext.asyncio import (
     AsyncEngine,
     AsyncSession,
@@ -14,10 +18,6 @@ from sqlalchemy.ext.asyncio import (
     create_async_engine,
 )
 from sqlalchemy.orm import DeclarativeBase, Mapped, declared_attr, mapped_column
-from sqlalchemy import text, String, DateTime, func
-from sqlalchemy.dialects.postgresql import UUID as PGUUID
-import uuid
-from datetime import datetime
 
 from app.config import get_settings
 
@@ -26,8 +26,8 @@ class Base(DeclarativeBase):
     """Declarative base with shared columns and tenant-scoping support."""
 
     @declared_attr.directive
-    def __tablename__(cls) -> str:
-        return cls.__name__.lower() + "s"
+    def __tablename__(self) -> str:
+        return self.__name__.lower() + "s"
 
 
 class TimestampMixin:
@@ -44,9 +44,7 @@ class TimestampMixin:
 class TenantMixin(TimestampMixin):
     """Adds tenant_id column and enables ORM-level auto-filtering."""
 
-    tenant_id: Mapped[uuid.UUID] = mapped_column(
-        PGUUID(as_uuid=True), nullable=False, index=True
-    )
+    tenant_id: Mapped[uuid.UUID] = mapped_column(PGUUID(as_uuid=True), nullable=False, index=True)
 
 
 # Global engine and session factory
@@ -101,7 +99,9 @@ async def set_tenant_context(session: AsyncSession, tenant_id: uuid.UUID | str)
 
 
 @contextlib.asynccontextmanager
-async def create_db_session(tenant_id: uuid.UUID | str | None = None) -> AsyncGenerator[AsyncSession, None]:
+async def create_db_session(
+    tenant_id: uuid.UUID | str | None = None,
+) -> AsyncGenerator[AsyncSession, None]:
     """Create a standalone session outside FastAPI (e.g. for tests/workers)."""
     factory = get_session_factory()
     async with factory() as session:
@@ -128,7 +128,5 @@ def reset_engine_for_testing(engine: AsyncEngine) -> async_sessionmaker[AsyncSes
     """Replace the global engine with a test engine. Returns a session factory."""
     global _engine, _session_factory
     _engine = engine
-    _session_factory = async_sessionmaker(
-        bind=engine, expire_on_commit=False, class_=AsyncSession
-    )
+    _session_factory = async_sessionmaker(bind=engine, expire_on_commit=False, class_=AsyncSession)
     return _session_factory