Connect Lmod with command-not-found hooks in shell #746

This is a cool idea completely stolen from @xdelaruelle his talk at FOSDEM 2025 ( https://fosdem.org/2025/schedule/event/fosdem-2025-4639-environment-modules-why-this-old-idea-is-still-useful-today-and-what-s-next/ ):

Most shells have a 'hook' that will trigger if a command is given that does not exist. We could use this to suggest a module to load.

Origin is at https://github.com/codeandkey/mii

I guess it boils down to:

• We should check all changes to PATH done by the modules. For those paths we need to check out the executables files in those paths
• It needs to be stored in a cache which we can load very quickly where we connect a name with the modules that provides those names
• use this cache in the shell hook.

Maybe I can find some time to do this. But I will just leave it here to be not forgotten.