dashboard: add battery page transition debug prints

firmware/esp32-s3-dashboard/dashboard_config.h

@@ -1,6 +1,6 @@
 #pragma once
 
-static const char *DASHBOARD_VERSION = "0.1.90-repair-battery-page-link";
+static const char *DASHBOARD_VERSION = "0.1.91-battery-page-debug";
 
 // Update these if your Cargo ESP AP credentials are different.
 //static const char *CARGO_WIFI_SSID = "OverlandController";

firmware/esp32-s3-dashboard/esp32-s3-dashboard.ino

@@ -564,6 +564,13 @@ static void dashboard_page_switch_async_cb(void *user_data)
 {
     DashboardScreen target = (DashboardScreen)(intptr_t)user_data;
     dashboard_page_switch_queued = false;
+
+    if (target == SCREEN_BATTERY_DETAIL) {
+        Serial.println("DEBUG PAGE: Switching to Battery Detail");
+    } else {
+        Serial.println("DEBUG PAGE: Switching to Overview");
+    }
+
     show_dashboard_screen(target);
 }
 
@@ -647,6 +654,7 @@ static void update_battery_detail_widgets()
 
 static void create_battery_detail_screen()
 {
+    Serial.println("DEBUG PAGE: Entering Battery Detail constructor");
     lv_obj_t *screen = lv_scr_act();
     lv_obj_clean(screen);
     current_dashboard_screen = SCREEN_BATTERY_DETAIL;
@@ -684,6 +692,7 @@ static void create_battery_detail_screen()
     battery_detail_value_label(screen, "Cell Delta", &battery_detail_delta_label, 356, 504);
 
     update_battery_detail_widgets();
+    Serial.println("DEBUG PAGE: Leaving Battery Detail constructor");
 }
 
 static void show_dashboard_screen(DashboardScreen screen)