Feature request - iSH uptime

Issues is probably not the right place for Feature requests, but Wiki is empty and Discussions seems pretty dead on this git, and on Discord we are asked to create issues :)

It would be nice to get access to app uptime, GPT gave a suggestion https://chatgpt.com/share/a46125e3-3154-41ef-af12-cd2c5430ad7c

I am not an iOS dev, so I have no clue if this is a good approach and I unfortunately can't contribute with a Pull request, but it did look pretty simple. Way back emkey1 made app uptime available in his fork, but I don't know how he implemented it.

if this uptime would be accessible via /proc/ish/defaults or /proc/ish/.defaults or by all means some other way, it would be trivial to make a replacement uptime, that shows iSH uptime in standard Unix notation

Start by reviewing the linked GPT suggestion and the referenced emkey1 fork implementation, then inspect how iSH exposes paths such as /proc/ish/defaults or /proc/ish/.defaults. Done means iSH uptime is accessible through a documented /proc path and can be used by a replacement uptime command in standard Unix notation.

Written by the indexing model from the issue text.