COB heatmap

web/layout_manager.py

@@ -409,6 +409,17 @@ class DashboardLayoutManager:
                     ], className="card")
                 ], style={"width": "38%", "marginLeft": "2%"}),
             ], className="d-flex mb-3"),
+
+            # COB Heatmap (ETH)
+            html.Div([
+                html.Div([
+                    html.H6([
+                        html.I(className="fas fa-fire me-2"),
+                        "ETH/USDT COB Heatmap (last 5m, ±10 buckets)"
+                    ], className="card-title mb-2"),
+                    dcc.Graph(id='cob-heatmap-eth', config={'displayModeBar': False}, style={"height": "300px"})
+                ], className="card-body p-2")
+            ], className="card"),
             
             # Second row: Pending Orders (left) and Closed Trades (right)
             html.Div([