🎉 v1.0.0 — Vela Platform launch

Self-hosted P&L tracking app with component-level pricing.
Offers: Atlas/Atlas+/Rif/Rif+ with granular cost breakdown.
API + MCP + multi-user auth.

backend/database.py

@@ -0,0 +1,22 @@
+"""Database setup: engine, session factory, and base model."""
+
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker, DeclarativeBase
+
+DATABASE_URL = "sqlite:///bestof.db"
+
+engine = create_engine(DATABASE_URL, connect_args={"check_same_thread": False})
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+
+
+class Base(DeclarativeBase):
+    pass
+
+
+def get_db():
+    """FastAPI dependency that yields a database session."""
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()