meshtastic: add new packages

[GeorgeSapkin]

Maintainer: @vidplace7, me

Description:

Add Meshtastic daemon, web UI, and Python CLI and API. dropped for now.

Depends on:

• python-platformio: add target package and missing dependencies #29389
• python-platformio: fix host build #29437
• protobuf: split package into compat and modern and bump to 29.5 #29392
• treewide: fix dangling SONAME symlinks when using ABI_VERSION #29415

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🧪 Run Testing Details

• OpenWrt Version: 25.12.4
• OpenWrt Target/Subtarget: x86/64
• OpenWrt Device: QEMU

Run-tested, but without real LoRa hardware.

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✅ Formalities

• I have reviewed the CONTRIBUTING.md file for detailed contributing guidelines.

[GeorgeSapkin]

@vidplace7 can you have a look at the packaging and configs? Does it make sense to package other things like the TUI?

• https://github.com/pdxlocations/contact

[GeorgeSapkin]

I dropped the Python package for now as it has dependencies that are not part of the packaging, so it's broken even when installed from pip.

[GeorgeSapkin]

@vidplace7 any feedback?

[commodo]

@commodo the patch seems to help with marshmallow, but looks like there are more broken Python packages now. Confusing, considering these used to build in CI before. I guess they were building before because some other package had the correct dependency. The issues are with some of the packages I introduced, so I'll try to fix those myself first.

Yeah, Python packages are a mess.
They always were a mess.

One idea I have, is to slowly remove some of them.
They got added over time, because they were requested and some maintainers thought they were a good idea.
And I had no big reason to disagree.
My main thought was that a Python package should be added only if it has some binary bindings which cannot be supported otherwise. Or if it's something noteworthy like Django (and dependencies).
Otherwise, there isn't much argument to keep some of them.

[commodo]

i can help with #29566