feat(validation): complete validation editor and master data modules

validation-suite/backend/mercury/app/db/session.py

@@ -0,0 +1,20 @@
+from __future__ import annotations
+
+from collections.abc import Generator
+
+from sqlalchemy import create_engine
+from sqlalchemy.orm import Session, sessionmaker
+
+from app.core.config import settings
+
+engine = create_engine(settings.database_url, pool_pre_ping=True)
+SessionLocal = sessionmaker(bind=engine, autoflush=False, expire_on_commit=False)
+
+
+def get_session() -> Generator[Session, None, None]:
+    session = SessionLocal()
+    try:
+        yield session
+    finally:
+        session.close()
+