fix: Complete removal of relative imports to resolve Docker container issues

ai_processor/cache_manager.py

@@ -8,7 +8,7 @@ import logging
 from datetime import datetime
 from typing import Dict, List, Optional
 
-from .config import CACHE_FILE
+from config import CACHE_FILE
 
 logger = logging.getLogger(__name__)
 

ai_processor/metrics_collector.py

@@ -128,4 +128,4 @@ class MetricsCollector:
         }
 
 # Global metrics collector instance
-metrics_collector = MetricsCollector()
+metrics_collector = MetricsCollector()