Uploaded files and code to GitHub:
https://github.com/ktmizugaki/wifi-voice-clock

Current status of code is:

• When ESP32 is started, it becomes AP and HTTP server.
  • SSID and password is printed to serial console.
• WiFi settings can be added using Web UI.
  • URL will be http://192.168.4.1/wifi_conf
• ESP32 can connect to added SSID.

I haven't touched displaying part yet.(SSID and password will be shown on the display in the future)