debug: add bare web server to LilyGO setup isolation

firmware/esp32/overland-controller/overland-controller.ino

@@ -4151,6 +4151,11 @@ void setup() {
     Serial.print("AP IP: ");
     Serial.println(WiFi.softAPIP());
 
+    heapCheckpoint("before:server.begin");
+    server.begin();
+    heapCheckpoint("after:server.begin");
+    Serial.println("WebServer begin only; no routes registered");
+
     heapCheckpoint("setup:end");
 }
 
@@ -4342,10 +4347,11 @@ void projectSetupDisabled() {
 }
 
 void loop() {
+    server.handleClient();
 #if DASHBOARD_UART_ENABLED
     pollDashboardUart();
 #endif
-    delay(100);
+    delay(2);
 }