Update app.py

app.py

@@ -25,7 +25,7 @@ import plotly.graph_objects as go
 try:
     # خدمات البيانات والبنية التحتية
     from r2 import R2Service
-    from data_manager import DataManager
+    from ml_data_manager import DataManager
     from whale_monitor.core import EnhancedWhaleMonitor
     from sentiment_news import NewsFetcher
     from vaderSentiment.vaderSentiment import SentimentIntensityAnalyzer