FR: Wear data via phone app instead of direct connection

**Is your feature request related to a problem? Please describe.**
Difficulty in connecting WearOS App to HA. At home, it can only connect via IP address since WearOS disregards the local DNS. Outside using TailScale VPN, there is no way to extend that VPN access to the watch.

**Describe the solution you'd like**
An option for the WearOS app to connect via the HA app on the phone as a bridge, instead of as a direct connection to a specified host. The Android APIs should allow the phone + watch apps to easily establish a TCP connection, at which point HA on the phone can simply act as a proxy for the watch (using the same connection settings it uses for itself).

**Describe alternatives you've considered, if any**
I've considered SSH forwarding via termux as a proxy, but that doesn't seem workable either (at a minimum, I can't find a way to identify persistent IPs for the BT bridge to even test it).