dashboard: add battery card double tap navigation

firmware/esp32-s3-dashboard/dashboard_config.h

@@ -1,6 +1,6 @@
 #pragma once
 
-static const char *DASHBOARD_VERSION = "0.1.104-no-overview-rebuild-on-back";
+static const char *DASHBOARD_VERSION = "0.1.105-battery-card-doubletap";
 
 // 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

@@ -764,6 +764,43 @@ static void show_dashboard_screen(DashboardScreen screen)
 }
 
 
+static void battery_card_doubletap_event_cb(lv_event_t *event)
+{
+    if (lv_event_get_code(event) != LV_EVENT_SHORT_CLICKED) return;
+
+    static uint32_t last_tap_ms = 0;
+    uint32_t now_ms = millis();
+
+    if (now_ms - last_tap_ms <= 550) {
+        last_tap_ms = 0;
+        Serial.println("NAV: Battery card double tap");
+        queue_dashboard_page_switch(SCREEN_BATTERY_DETAIL);
+        return;
+    }
+
+    last_tap_ms = now_ms;
+}
+
+static void add_battery_card_doubletap_hitbox(lv_obj_t *screen)
+{
+    lv_obj_t *hitbox = lv_obj_create(screen);
+    lv_obj_set_size(hitbox, 380, 310);
+    lv_obj_align(hitbox, LV_ALIGN_TOP_LEFT, 32, 68);
+    lv_obj_set_style_bg_opa(hitbox, LV_OPA_TRANSP, 0);
+    lv_obj_set_style_border_opa(hitbox, LV_OPA_TRANSP, 0);
+    lv_obj_set_style_pad_all(hitbox, 0, 0);
+    lv_obj_clear_flag(hitbox, LV_OBJ_FLAG_SCROLLABLE);
+    lv_obj_add_flag(hitbox, LV_OBJ_FLAG_CLICKABLE);
+
+    lv_obj_add_event_cb(hitbox, battery_card_doubletap_event_cb, LV_EVENT_SHORT_CLICKED, nullptr);
+
+    // Keep swipe navigation working even over the battery card.
+    lv_obj_add_event_cb(hitbox, dashboard_root_event_cb, LV_EVENT_GESTURE, nullptr);
+
+    lv_obj_move_foreground(hitbox);
+}
+
+
 static void layout_relay_buttons()
 {
     int visible_count = relay_count;