Hi @cyberowl,
I quickly checked your configuration and it is all correct. There is an issue with our custom domains service. We will look into it and post an update here once it is resolved. Sorry for the inconvenience!
The .well-known directory does not get deployed. I read through this thread and it seems that what helped to @zire does not solve my situation as I am using dfx 14.2 version.
I see you have the .ic-assets.json file in your repo root. It should be next to the .well-known folder, so in your case please move it to src/frontend/public