Initial commit with 2026 World Cup Quant Platform core modules and CI/CD

platform/backend/app/db/base.py

@@ -0,0 +1,26 @@
+from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
+from sqlalchemy.orm import DeclarativeBase
+import os
+
+
+class Base(DeclarativeBase):
+    """Project ORM base model."""
+
+
+DATABASE_URL = os.getenv('DATABASE_URL', 'postgresql+asyncpg://fifa_user:change_me@fifa2026-postgres:5432/fifa2026')
+
+
+def get_engine(database_url: str = DATABASE_URL):
+    """Create asynchronous SQLAlchemy engine for production use."""
+
+    return create_async_engine(database_url, echo=False, pool_pre_ping=True)
+
+
+def get_session_factory(database_url: str = DATABASE_URL):
+    """Create session factory for async query operations."""
+
+    engine = get_engine(database_url)
+    return async_sessionmaker(bind=engine, class_=AsyncSession, expire_on_commit=False)
+
+
+SessionFactory = get_session_factory()