Add Pico dashboard view model

tests/test_pico_core.py

@@ -426,3 +426,59 @@ def test_communication_service_auto_selects_http_fallback_when_uart_down():
 
     assert service.auto_select_transport() is True
     assert service.use_http_fallback is True
+
+
+def test_dashboard_view_model_formats_dashboard_summary():
+    from ui.dashboard_view_model import DashboardViewModel
+
+    state = AppState()
+    state.update_from_status({
+        "battery": {
+            "soc": 82,
+            "voltage": 13.2,
+            "current": -6.4,
+            "runtime_hours": 12.0,
+        },
+        "temps": {
+            "fridge_zone_1": 34.5,
+            "fridge_zone_2": 36.0,
+        },
+        "relays": {
+            "starlink": False,
+            "fridge": True,
+        },
+        "network": {
+            "uart_connected": True,
+        },
+    })
+
+    vm = DashboardViewModel(state, alarms=[]).as_dict()
+
+    assert vm["top_bar"]["soc"] == "82%"
+    assert vm["top_bar"]["comms"] == "UART OK"
+    assert vm["top_bar"]["alarms"] == 0
+
+    assert vm["battery"]["voltage"] == "13.2V"
+    assert vm["battery"]["current"] == "-6.4A"
+    assert vm["battery"]["runtime"] == "12.0 hr"
+
+    assert vm["fridge"]["zone_1"] == "34.5°F"
+    assert vm["fridge"]["zone_2"] == "36.0°F"
+
+    assert vm["power"]["starlink"] == "OFF"
+    assert vm["power"]["fridge"] == "ON"
+
+
+def test_dashboard_view_model_handles_missing_values():
+    from ui.dashboard_view_model import DashboardViewModel
+
+    state = AppState()
+
+    vm = DashboardViewModel(state, alarms=["communication_lost"]).as_dict()
+
+    assert vm["top_bar"]["soc"] == "--"
+    assert vm["top_bar"]["comms"] == "UART LOST"
+    assert vm["top_bar"]["alarms"] == 1
+
+    assert vm["battery"]["voltage"] == "--"
+    assert vm["fridge"]["zone_1"] == "--"