fix(investigation): allow autonomous model baseline recovery

tests/unit/test_burst_impact.py

@@ -99,6 +99,27 @@ def test_unknown_units_do_not_draw_an_impact_area(inputs):
     inputs.assert_not_called()
 
 
+def test_missing_online_baseline_offers_recalculation_then_coverage_can_be_retried(inputs):
+    inputs.side_effect = None
+    inputs.return_value = {}
+    native = simulation([2, 4, 6])
+    missing = service.estimate_burst_impact("own", START, native)
+    assert missing["impact"]["reason"] == "no_exact_comparable_online_snapshot"
+    recovery = missing["impact"]["baseline_recovery"]
+    assert recovery["tool"] == "run_simulation"
+    assert recovery["parameters"] == {
+        "start_time": START.isoformat(), "duration": 60, "output_node_ids": ["J0"],
+    }
+    assert "map_payload" not in missing
+
+    inputs.return_value = {
+        f"J{i}": [{"time": START.isoformat(), "value": 30}] for i in range(3)
+    }
+    retried = service.estimate_burst_impact("own", START, native)
+    assert retried["impact"]["status"] == "ready"
+    assert len(retried["map_payload"]["features"]) == 3
+
+
 def test_full_native_network_compared_before_selected_series_filter(monkeypatch, inputs):
     from app.mcp import scenario_service
     from app.services import simulation_scenarios