feat(readme): add GuardClaw Model Picker to Developer Tooling and Observability

[RohitKS7]

Resource name

GuardClaw - OpenClaw Model Picker

Resource URL

https://github.com/RohitKS7/model_picker

Suggested section

Developer Tooling and Observability

Why it should be included

A free and open source model picker for structuring OpenClaw model selection.

IT helps users avoid trial and error by:

• recommending primary + fallback models
• mapping model choice to use case
• generating a ready-to-use config snippet
• Reduces guesswork around which models actually work together in real setups.

No account. No data stored. Runs entirely in the browser.

Built as part of GuardClaw — a growing toolkit of utilities for OpenClaw developers.

Checklist

• I checked that this resource is not already listed.
• I reviewed CONTRIBUTING.md formatting and A-Z ordering rules.