dashboard: refresh relay status immediately after command

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

@@ -10,7 +10,7 @@
 using namespace esp_panel::drivers;
 using namespace esp_panel::board;
 
-static const char *DASHBOARD_VERSION = "0.0.5-relay-control";
+static const char *DASHBOARD_VERSION = "0.0.6-immediate-relay-refresh";
 
 // Update these if your Cargo ESP AP credentials are different.
 static const char *CARGO_WIFI_SSID = "OverlandController";
@@ -72,7 +72,7 @@ static String on_off(bool value)
     return value ? "ON" : "OFF";
 }
 
-static void force_status_poll_soon()
+static void force_status_poll_now()
 {
     last_status_poll_ms = 0;
 }
@@ -137,10 +137,22 @@ static void relay_button_event_cb(lv_event_t *event)
 
     bool ok = post_relay_state(relay_id, next_state);
 
-    String result_text = ok ? "Relay command sent\nRefreshing status..." : "Relay command failed";
-    set_label_text_if_changed(system_label, last_system_text, result_text);
+    if (ok) {
+        relay_states[index] = next_state;
+        update_relay_buttons();
 
-    force_status_poll_soon();
+        String optimistic_text = "Relay command sent\n";
+        optimistic_text += relay_id;
+        optimistic_text += " -> ";
+        optimistic_text += on_off(next_state);
+        optimistic_text += "\nRefreshing status...";
+        set_label_text_if_changed(system_label, last_system_text, optimistic_text);
+
+        force_status_poll_now();
+        poll_status_api();
+    } else {
+        set_label_text_if_changed(system_label, last_system_text, "Relay command failed");
+    }
 }
 
 static void update_relay_buttons()