Feature request: Decode regions for messages in Packet Analyzer

[Rescla]

Continuation of #256

TransportCode is shown for TransportFlood messages, but it is not in a readable format. E.g. 0X00009164 for 'nl-gr'.

https://github.com/meshcore-dev/MeshCore/blob/companion-v1.15.0/src/helpers/TransportKeyStore.cpp#L4

Are there already plans for this? Do we want to discover regions, like using the region discover functionality the app offers? And/or define a list in Remote Terminal? Or generate/brute force IDs for known regions?

[jkingsman]

I supposed that we could brute force a list, yeah, but frankly that feels a little messy. I'd be open to storing a list of regions that we can check for in the settings; not sure how widely used that would be — perhaps there's broad interest?

[Rescla]

I agree brute force is a bit messy.

For UX I'd think compiling a list based on the regions defined for known channels would be a good start. This would require no interaction on the user's part, and allow you to see which channel messages share your region, and which are unscoped. This list could be edited and manually expanded/cleaned in the settings. This can also be used to autocomplete/select a region for the channels, instead of having to type the region manually.

As a bit of background, a part of The Netherlands Meshtastic community recently switched from SF 8 to 7, and there are plans to denyf * as soon as the 13th of June. So quite a few people are already playing around with regions. Quite a few analyzers already show region for messages, like https://analyser.meshwiki.nl/channels/public

But I'm not sure how much international interest there would be in showing region.