[FL-905] Add battery health state monitoring in power app (#358)

* add battery health reading from gauge
* add battery health reading to api-hal-power
* update battery health in power application

Co-authored-by: あく <alleteam@gmail.com>

applications/power/power.c

@@ -205,6 +205,7 @@ int32_t power_task(void* p) {
         with_view_model(
             power->info_view, (PowerInfoModel * model) {
                 model->charge = api_hal_power_get_pct();
+                model->health = api_hal_power_get_bat_health_pct();
                 model->capacity_remaining = api_hal_power_get_battery_remaining_capacity();
                 model->capacity_full = api_hal_power_get_battery_full_capacity();
                 model->current_charger = api_hal_power_get_battery_current(ApiHalPowerICCharger);

applications/power/power_views.c

@@ -24,7 +24,12 @@ void power_info_draw_callback(Canvas* canvas, void* context) {
         (uint32_t)(data->voltage_gauge * 1000),
         (uint32_t)(data->voltage_charger * 1000));
     canvas_draw_str(canvas, 5, 32, buffer);
-    snprintf(buffer, 64, "Charge: %ld%%", (uint32_t)(data->charge));
+    snprintf(
+        buffer,
+        64,
+        "Charge: %ld%% Health: %ld%%",
+        (uint32_t)(data->charge),
+        (uint32_t)(data->health));
     canvas_draw_str(canvas, 5, 42, buffer);
     snprintf(buffer, 64, "Capacity: %ld of %ldmAh", data->capacity_remaining, data->capacity_full);
     canvas_draw_str(canvas, 5, 52, buffer);

applications/power/power_views.h

@@ -22,6 +22,7 @@ typedef struct {
     float temperature_gauge;
 
     uint8_t charge;
+    uint8_t health;
 } PowerInfoModel;
 
 void power_info_draw_callback(Canvas* canvas, void* context);