Update GStack company to upstream v1.57.9.0

[FroeMic]

Summary

• Update the GStack company package from upstream garrytan/gstack v0.11.10-era content to v1.57.9.0 (8241949357263be64013a8410171def68cff920c)
• Expand packaged skills from 27 to 58, including newer review, design, iOS, gbrain, context, OpenClaw, and browser skills
• Preserve referenced markdown helper files for skills that load sections/templates/checklists
• Refresh README and COMPANY metadata with the upstream version and pinned source commit

Verification

• Ran companies.sh dry-run against local Paperclip: package previews with 5 agents and 58 skills
• Imported the updated local package into Paperclip at http://127.0.0.1:3100/GST/dashboard
• Verified Paperclip skills endpoint reports 58 garrytan/gstack skills plus 5 built-in Paperclip runtime skills

[shashank10]

Why is it not getting updated to the latest version yet? The last version I see is 4 months old.

[shashank10]

@cryppadotta is this going to be merged or any latest update to gstack?