Remove captive portal DNS — serve site normally at 192.168.4.1

Made-with: Cursor

src/main.cpp

@@ -10,7 +10,6 @@
 #include <RadioLib.h>
 #include <WiFi.h>
 #include <WebServer.h>
-#include <DNSServer.h>
 #include <ESPmDNS.h>
 #include <ArduinoOTA.h>
 #include "driver/gpio.h"
@@ -36,7 +35,6 @@ CC1101 radio1(&mod1);
 CC1101 radio2(&mod2);
 
 static WebServer server(WEB_PORT);
-static DNSServer dnsServer;
 static Preferences preferences;
 
 // CC1101 valid discrete power levels in dBm (RadioLib only accepts these exact values)
@@ -2544,8 +2542,7 @@ static void handleCaptureWave() {
 }
 
 static void handleNotFound() {
-  server.sendHeader("Location", "http://192.168.4.1/");
-  server.send(302, "text/plain", "Redirect");
+  server.send(404, "text/plain", "404: Not found");
 }
 
 static void handleSelfTest() {
@@ -2718,9 +2715,6 @@ void setup() {
   server.onNotFound(handleNotFound);
   server.begin();
 
-  dnsServer.start(53, "*", WiFi.softAPIP());
-  logLine("[DNS] Captive portal DNS on *:53 → " + WiFi.softAPIP().toString());
-
   // OTA firmware updates over WiFi (connect to 'killer' AP, upload via PlatformIO OTA)
   ArduinoOTA.setHostname("killer");
   ArduinoOTA.setPassword("killerpw");
@@ -2746,7 +2740,6 @@ void setup() {
 }
 
 void loop() {
-  dnsServer.processNextRequest();
   espNowTick();
   ArduinoOTA.handle();
   server.handleClient();