add connectgaps=false to prevent misleading lines across data gaps

src/streamlit_app.py

@@ -577,26 +577,29 @@ def create_temporal_visualizations(df: pd.DataFrame) -> Dict[str, go.Figure]:
                   marker=dict(size=5, color='lightblue')),
         row=1, col=1
     )
-    
+
     fig_timeline.add_trace(
         go.Scatter(x=daily_stats.index, y=daily_stats['post_count_ma7'],
                   mode='lines', name='7-Day Average',
-                  line=dict(color='blue', width=2)),
+                  line=dict(color='blue', width=2),
+                  connectgaps=False),
         row=1, col=1
     )
-    
+
     # Engagement metrics
     fig_timeline.add_trace(
         go.Scatter(x=daily_stats.index, y=daily_stats['score_ma7'],
                   mode='lines', name='Avg Score (7-day)',
-                  line=dict(color='orange')),
+                  line=dict(color='orange'),
+                  connectgaps=False),
         row=2, col=1
     )
-    
+
     fig_timeline.add_trace(
         go.Scatter(x=daily_stats.index, y=daily_stats['num_comments'].rolling(window=7, min_periods=1).mean(),
                   mode='lines', name='Avg Comments (7-day)',
-                  line=dict(color='green')),
+                  line=dict(color='green'),
+                  connectgaps=False),
         row=2, col=1
     )
     
@@ -638,7 +641,8 @@ def create_temporal_visualizations(df: pd.DataFrame) -> Dict[str, go.Figure]:
             y=monthly_data[('score', 'mean')],
             name='Avg Score',
             yaxis='y2',
-            line=dict(color='red', width=2)
+            line=dict(color='red', width=2),
+            connectgaps=False
         ))
         
         fig_monthly.update_layout(
@@ -677,7 +681,8 @@ def create_temporal_visualizations(df: pd.DataFrame) -> Dict[str, go.Figure]:
             y=weekly_data[('score', 'mean')],
             name='Avg Score',
             yaxis='y2',
-            line=dict(color='red', width=2)
+            line=dict(color='red', width=2),
+            connectgaps=False
         ))
         
         fig_weekly.update_layout(