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charts.py

@@ -179,6 +179,18 @@ def chart_burn_rate(df: pd.DataFrame) -> go.Figure | None:
         xaxis_title="Date",
         yaxis_title="Cumulative Dollars",
         yaxis_tickprefix="$",
+        annotations=[
+            dict(
+                text="Dashed line = linear projection (total spend / days elapsed × days remaining)",
+                xref="paper",
+                yref="paper",
+                x=0,
+                y=-0.12,
+                showarrow=False,
+                font=dict(size=11, color="#666666"),
+            )
+        ],
+        margin=dict(b=80),
     )
     return fig