init

app/database.py

@@ -0,0 +1,25 @@
+from sqlmodel import SQLModel, Session, create_engine
+from app.config import DATABASE_URL
+
+# SQLite requires check_same_thread=False for FastAPI
+_connect_args: dict = {}
+if DATABASE_URL.startswith("sqlite"):
+    _connect_args = {"check_same_thread": False}
+
+engine = create_engine(
+    DATABASE_URL,
+    echo=True,
+    connect_args=_connect_args,
+)
+
+
+def create_db_and_tables() -> None:
+    """Create all tables from SQLModel metadata.
+    Called once at application startup."""
+    SQLModel.metadata.create_all(engine)
+
+
+def get_session():
+    """FastAPI dependency — yields a SQLModel Session."""
+    with Session(engine) as session:
+        yield session