fix fix fi x fix

backend/igny8_core/modules/billing/views.py

@@ -147,17 +147,26 @@ class CreditUsageViewSet(AccountModelViewSet):
         
         # Default to current month if not provided
         now = timezone.now()
+        
+        def parse_iso_datetime(dt_str):
+            """Parse ISO datetime string, handling Z suffix for UTC"""
+            if not dt_str:
+                return None
+            # Handle Z suffix (UTC indicator) which Django's parse_datetime doesn't support
+            if dt_str.endswith('Z'):
+                dt_str = dt_str[:-1] + '+00:00'
+            from django.utils.dateparse import parse_datetime
+            return parse_datetime(dt_str)
+        
         if not start_date:
             start_date = now.replace(day=1, hour=0, minute=0, second=0, microsecond=0)
         else:
-            from django.utils.dateparse import parse_datetime
-            start_date = parse_datetime(start_date) or start_date
+            start_date = parse_iso_datetime(start_date) or start_date
         
         if not end_date:
             end_date = now
         else:
-            from django.utils.dateparse import parse_datetime
-            end_date = parse_datetime(end_date) or end_date
+            end_date = parse_iso_datetime(end_date) or end_date
         
         # Get usage logs in date range
         usage_logs = CreditUsageLog.objects.filter(

backend/igny8_core/modules/writer/views.py

@@ -1114,7 +1114,9 @@ class ContentViewSet(SiteSectorModelViewSet):
                 request=request
             )
         
-        # Parse datetime
+        # Parse datetime - handle Z suffix (UTC indicator) which Django's parse_datetime doesn't support
+        if scheduled_at_str.endswith('Z'):
+            scheduled_at_str = scheduled_at_str[:-1] + '+00:00'
         scheduled_at = parse_datetime(scheduled_at_str)
         if not scheduled_at:
             return error_response(