Refactor import statements in health.py and stance.py to use absolute paths for improved clarity and consistency

routes/health.py

@@ -2,8 +2,8 @@
 
 from fastapi import APIRouter
 from datetime import datetime
-from ..models import HealthResponse
-from ..services import stance_model_manager
+from models import HealthResponse
+from services import stance_model_manager
 
 router = APIRouter()
 

routes/stance.py

@@ -4,13 +4,13 @@ from fastapi import APIRouter, HTTPException
 from datetime import datetime
 import logging
 
-from ..models import (
+from models import (
     StanceRequest,
     StanceResponse,
     BatchStanceRequest,
     BatchStanceResponse,
 )
-from ..services import stance_model_manager
+from services import stance_model_manager
 
 router = APIRouter()
 logger = logging.getLogger(__name__)