feat: Add Canadian fraction management dialog, implement debounced search for historical fractions and sectors, and enhance USA fraction search with description support.

backend/api/v1/modules/a76/general_catalogs/fractions/tariff_fractions/service.py

@@ -145,12 +145,23 @@ class TariffFractionService:
             try:
                 usa_service = FraccionesUSAService.get_instance()
                 search_term = None
+                search_description = None
+
                 if filters and filters.get("search"):
-                     search_term = filters["search"]
+                     term = filters["search"]
+                     # Simple heuristic: if it looks like a code, use code search, else description
+                     # FIX: Short numeric codes (e.g. "01") often fail strict 'fraccion' search. 
+                     # Treat them as description search for partial matching.
+                     clean_term = term.replace(".", "")
+                     if clean_term.isdigit() and len(clean_term) >= 4:
+                        search_term = term
+                     else:
+                        search_description = term
                 
-                # USA Service search signature: fraccion, skip, limit
+                # USA Service search signature: fraccion, descripcion, skip, limit
                 usa_items = await usa_service.search(
                     fraccion=search_term,
+                    descripcion=search_description,
                     skip=skip,
                     limit=limit
                 )
@@ -161,7 +172,9 @@ class TariffFractionService:
                      total += 1
                 return items, total
             except Exception as e:
+                import traceback
                 logger.error(f"Error fetching USA fractions (API): {e}")
+                logger.error(traceback.format_exc())
                 # Return empty list on error as per requirement (since API is broken)
                 return [], 0