add claude

api/app/db/base.py

@@ -0,0 +1,40 @@
+"""Database base configuration"""
+from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.ext.asyncio import AsyncSession, create_async_engine, async_sessionmaker
+from app.core.config import settings
+
+# Create base class for models
+Base = declarative_base()
+
+# Select database URL based on configuration
+database_url = settings.database_url_supabase if settings.use_supabase else settings.database_url
+
+# Create async engine
+engine = create_async_engine(
+    database_url,
+    echo=settings.debug,
+    future=True,
+    pool_pre_ping=True,  # Enable connection health checks
+    pool_size=5,
+    max_overflow=10
+)
+
+# Create async session factory
+async_session = async_sessionmaker(
+    engine,
+    class_=AsyncSession,
+    expire_on_commit=False
+)
+
+
+async def get_db() -> AsyncSession:
+    """Dependency to get database session"""
+    async with async_session() as session:
+        try:
+            yield session
+            await session.commit()
+        except Exception:
+            await session.rollback()
+            raise
+        finally:
+            await session.close()