fix(imports): correct cache_service import paths

Update imports from src.core.cache to src.services.cache_service
where the cache_service instance is actually defined

src/services/cache_warming_service.py

@@ -13,7 +13,7 @@ from enum import Enum
 import hashlib
 
 from src.core import get_logger
-from src.core.cache import cache_service
+from src.services.cache_service import cache_service
 from src.services.data_service import data_service
 from src.services.investigation_service import investigation_service
 from src.core.config import settings

src/services/ip_whitelist_service.py

@@ -12,7 +12,7 @@ from datetime import datetime, timezone
 import json
 
 from src.core import get_logger
-from src.core.cache import cache_service
+from src.services.cache_service import cache_service
 from src.core.config import settings
 from src.models.base import BaseModel
 from sqlalchemy import Column, String, Boolean, DateTime, Integer, JSON

src/tasks/cache_warming_tasks.py

@@ -235,7 +235,7 @@ def analyze_cache_patterns() -> Dict[str, Any]:
         logger.info("Analyzing cache access patterns")
         
         import asyncio
-        from src.core.cache import cache_service
+        from src.services.cache_service import cache_service
         
         loop = asyncio.new_event_loop()
         asyncio.set_event_loop(loop)