Switch from soft AP mode to WiFi station mode so the ESP32-S3 joins
the home network and exposes the MJPEG stream at http://<IP>:81/stream
for use with Home Assistant's MJPEG camera integration.
Camera stream server from CameraWebServer example running over WiFi
soft access point. Fixed port conflict (removed NetworkServer on 80),
removed duplicate startCameraServerAP(), and corrected IP reporting
to use softAPIP().
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>