feat(sync): Enhance metadata synchronization for unchanged files in Advoware sync process

services/advoware_document_sync_utils.py

@@ -312,25 +312,27 @@ class AdvowareDocumentSyncUtils:
         """
         updates = {}
         
-        # Map History fields to correct EspoCRM field names
+        # Map History metadata fields to EspoCRM field names
         history_text = advo_history.get('text', '')
         history_art = advo_history.get('art', '')
-        history_hnr = advo_history.get('hNr')
-        
+
         espo_bemerkung = espo_doc.get('advowareBemerkung', '')
         espo_art = espo_doc.get('advowareArt', '')
-        espo_hnr = espo_doc.get('hnr')
-        
+
         # Check if different - sync metadata independently of file changes
         if history_text != espo_bemerkung:
             updates['advowareBemerkung'] = history_text
-        
+
         if history_art != espo_art:
             updates['advowareArt'] = history_art
-        
-        if history_hnr is not None and history_hnr != espo_hnr:
-            updates['hnr'] = history_hnr
-        
+
+        # Sync dat (creation date from Advoware History) → advowareErstellungTimestamp
+        history_dat_raw = advo_history.get('dat') or ''
+        history_erstellung = history_dat_raw.replace('T', ' ')[:19] if history_dat_raw else ''
+        espo_erstellung = espo_doc.get('advowareErstellungTimestamp') or ''
+        if history_erstellung and history_erstellung != espo_erstellung:
+            updates['advowareErstellungTimestamp'] = history_erstellung
+
         # Always update lastSyncTimestamp when metadata changes (EspoCRM format)
         if len(updates) > 0:
             updates['lastSyncTimestamp'] = datetime.now().strftime('%Y-%m-%d %H:%M:%S')