feat: Enhance GUI and processing services with new batch processing and estimation features, update concurrency settings, and improve styling organization.

application/estimator.py

@@ -3,7 +3,10 @@
 Encapsula la lógica de estimación previa al procesamiento.
 """
 import os
-from typing import List, Dict, Any, Optional
+from typing import List, Dict, Any, Optional, TYPE_CHECKING
+
+if TYPE_CHECKING:
+    from application.service import InvoiceProcessingService
 
 from application.profiles import get_profile
 from application.prompts import PromptBuilder
@@ -13,7 +16,7 @@ from application.file_discovery import get_sorted_radicados, find_file_for_type_
 from core.utils import collect_radicado_docs, collect_documents_flat
 
 class Estimator:
-    def __init__(self, service):
+    def __init__(self, service: 'InvoiceProcessingService'):
         self.service = service
 
     def estimate(