purge bmx6; adapt ubus-lime-metrics and utils to apk

[a-gave]

utils: better check if pkg is installed

Do not rely on opkg control files which could be removed by CONFIG_CLEAN_IPKG
Also do not rely on opkg itself since the package manager in openwrt-25.12 is apk.

With this and the previous commit the cli command last_internet and the lime-app
tab 'Metrics' are fixed for devices compiled with CONFIG_CLEAN_IPKG or running
openwrt-25.12 or SNAPSHOT.

ubus-lime-metrics: better check if babeld is installed

Do not rely on opkg control files which could be removed by CONFIG_CLEAN_IPKG
Also do not rely on opkg itself since the package manager in openwrt-25.12 is apk.

bmx6: purge package

NOTE: this drop support for openwrt-23.05 since the package rpcd-mod-rpcsys was not installed by default
I was thinking it was by default included in 24.10 and not in 23.05, but it is not a default package.. it was installed on my device because i'm using owut which pulls it in.

Edit: added also rpcd-mod-rpcsys to lime-system dependency to allow users to compile without opkg and with CONFIG_CLEAN_IPKG and to avoid implementing the previous check for apk which has a different db for packages info

[a-gave]

splitted a line too long in lime utils https://github.com/libremesh/lime-packages/compare/4eceeda5ceb8565fce46a761ce99f779e506ad85..d3b9d62006b3ba99097e68af624add00cbb0a7ed

[ilario]

Tested the new utils.is_installed on OpenWrt 24.10 and it works :D

I just don't understand this:

NOTE: this drop support for openwrt-23.05 since the package rpcd-mod-rpcsys was not installed by default

Is this expected to now work on OpenWrt 23.05? The package rpcd-mod-rpcsys is also present on OpenWrt 23.05 repository...

[a-gave]

Tested the new utils.is_installed on OpenWrt 24.10 and it works :D

I just don't understand this:

NOTE: this drop support for openwrt-23.05 since the package rpcd-mod-rpcsys was not installed by default

Is this expected to now work on OpenWrt 23.05? The package rpcd-mod-rpcsys is also present on OpenWrt 23.05 repository...

Sorry edited the description

I was thinking it was by default included in 24.10 and not in 23.05, but it is not a default package neither in 24.10..
But is installable in both.. that's why later i added it as a lime-system dependecy
it was installed on my device because i'm using owut which pulls it in.
Sorry yesterday I was not remembering ho to do strikethrough line in markdown :)

Confirm this: "added also rpcd-mod-rpcsys to lime-system dependency to allow users to compile without opkg and with CONFIG_CLEAN_IPKG and to avoid implementing the previous check for apk which has a different db for packages info"
Seems more convenient than implementing an analogous check for the different apk db!

[ilario]

Excellent work! Thanks!