Agent turn complete

backend/app/database.py

@@ -0,0 +1,37 @@
+"""Database configuration and session management."""
+
+import os
+from pathlib import Path
+from sqlalchemy import create_engine
+from sqlalchemy.orm import declarative_base, sessionmaker
+
+# Ensure data directory exists
+data_dir = Path("./data")
+data_dir.mkdir(exist_ok=True)
+
+# Use SQLite database
+DATABASE_URL = os.getenv("DATABASE_URL", "sqlite:///./data/app.db")
+
+# Create engine with SQLite-specific settings
+engine = create_engine(
+    DATABASE_URL,
+    connect_args={"check_same_thread": False} if "sqlite" in DATABASE_URL else {},
+    echo=False,
+)
+
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+Base = declarative_base()
+
+
+def get_db():
+    """Dependency for getting database session."""
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()
+
+
+def init_db():
+    """Initialize database tables."""
+    Base.metadata.create_all(bind=engine)