(Research) Bitcoin Connect in native mobile contexts

Ideally Bitcoin Connect works on all platforms so that developers have an easy way to connect to any wallet no matter what language. WalletConnect for example does this and is one reason why programmers would choose shitcoin projects over bitcoin (and unfortunately then more users also are exposed to those projects).

Unfortunately this is difficult for a few reasons:

- Different programming languages - Swift, Kotlin/Java, Dart, React Native / Unity / ... - mostly requiring complete ports of the project (which would take a lot of time and double the amount of maintenance for each project - and not just Bitcoin Connect, but Alby JS SDK (for NWC) and Alby Lightning tools (invoice decoding))
- React Native could possibly be the easiest due to having a common language as Bitcoin Connect for implementing the providers (but the rendering engine is different)
- We do not have much experience on mobile app development and the setups required
- Which existing and new apps would benefit from this, and which port would be most used?
- Is there anyone from the community that would work on this?
- How would we maintain consistency across the different ports and what parts would need to change?
- Would bitcoin connect be moved to a separate organization in order to better encompass the ports?

Start by comparing the native mobile contexts named in the issue: Swift, Kotlin/Java, Dart, React Native, and Unity. Identify which existing or new apps would benefit, what parts would require ports, and how consistency could be maintained. Done means a documented recommendation for target platforms, scope, and maintenance approach.

Written by the indexing model from the issue text.