Add section headers between README screenshots

Add local dashboard screenshot, label all README images

Add messaging UI screenshot to README

Update README tagline and intro to lead with TX capabilities

Add post-update migration hook for self-healing remote updates

Update onboarding guide for v0.6.0, add troubleshooting doc

Remove discord blurb from repo

Update README for v0.6.0 messaging and TX features

Fix patch_hal.sh detecting declarations instead of actual TX patch

Always run patch_hal.sh after HAL build

Fix HAL patcher when upstream TX section format changes

Validate node ID hex input before saving

Fix config permissions on every service start

Fix patch_hal.sh execute permission

Add sudoers rule for service self-restart