enhancement: if kubectl missing/unusable, download kubectl to ~/.solo/bin and use it (no sudo) #3139
Description
Feature to Enhance
Rather than relying on system kubectl, Solo should fall back to a managed toolchain inside ~/.solo/ when needed.
Requested Enhancement
If kubectl is missing or fails the non-interactive runnable check, Solo downloads and uses ~/.solo/bin/kubectl.
Business Need
This affects any windows WSL2 user or Linux user who attempts to install solo using brew (the recommended method now) and doesn't have kubeCTL when they attempt the solo one shot deploy.
If our goal is a flawless first experience with Solo this is an important error path to eliminate.
Additional Context
Repro steps
Remove kubectl OR make it interactive.
Run solo one-shot single deploy.
Verify Solo installs and uses its own kubectl and continues.