Refactor job model and endpoints for improved structure

Updated the job model to include `sample_id` and `run_id` fields, replacing `experiment_parameters_id`. Adjusted relationships and modified routers to reflect these changes. Added an endpoint for updating job status and restructured job streaming logic to include detailed experiment and sample data.

backend/main.py

@@ -128,8 +128,8 @@ async def lifespan(app: FastAPI):
     db = SessionLocal()
     try:
         if environment == "prod":
-            Base.metadata.drop_all(bind=engine)
-            Base.metadata.create_all(bind=engine)
+            # Base.metadata.drop_all(bind=engine)
+            # Base.metadata.create_all(bind=engine)
             from sqlalchemy.engine import reflection
 
             inspector = reflection.Inspector.from_engine(engine)