New feed recommender

app.py

@@ -62,7 +62,16 @@ def get_supabase_client():
     return supabase_client
 
 def parse_datetime(dt_str: str) -> datetime:
+    """Parse ISO datetime string and ensure correct microsecond precision."""
     try:
+        if '.' in dt_str:
+            date_part, time_part = dt_str.split('T')
+            time_part, tz_part = time_part.split('+')
+            if '.' in time_part:
+                time_without_micro, micro = time_part.split('.')
+                micro = micro.ljust(6, '0')  # Ensure microseconds are 6 digits
+                time_part = f"{time_without_micro}.{micro}"
+            dt_str = f"{date_part}T{time_part}+00:00"
         return datetime.fromisoformat(dt_str).astimezone(TIMEZONE)
     except Exception as e:
         logger.error(f"Error parsing datetime: {dt_str} - {str(e)}")