Add Hardware settings doc page

[gary149]

What

Adds a short documentation page for the dedicated Hardware settings page (huggingface.co/settings/hardware), which lets users register the compute hardware they own (GPUs, CPUs, Apple Silicon).

The page covers:

• Adding hardware (type, provider/model, memory, count, primary).
• Model compatibility: how saved hardware drives the "Hardware compatibility" estimate on GGUF/MLX model pages.
• Share & compare: the profile TFLOPS badge and the community hardware page at huggingface.co/hardware.

New file docs/hub/hardware.md, registered in _toctree.yml in the Models section next to Local Apps.

Notes

• Text-only for now; screenshots can be added later.
• Verified locally with doc-builder build (page renders, internal links to ./gguf, ./local-apps, ./agents-local resolve).
• The /settings/hardware page should be live in production before this is merged.

---

Note

Low Risk
Documentation-only change with no application or security impact.

Overview
Adds Hub documentation for Hardware settings (huggingface.co/settings/hardware): registering GPUs/CPUs/Apple Silicon, the Hardware compatibility panel on GGUF/MLX model pages, profile TFLOPS and the community hardware page, plus light/dark screenshots and links to Local Apps and agents-local.

Registers docs/hub/hardware.md in _toctree.yml under Models, immediately before Local Apps.

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[HuggingFaceDocBuilderDev]

The docs for this PR live here. All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.

[gary149]

Thanks both! Updated:

• Visibility default fixed: you're right, hardware is public by default. The page now says so, and explains you can turn off the Publicly Visible toggle to keep it private. Reworked the intro so the profile-sharing and privacy control read clearly.
• Applied @pcuenca's wording suggestions ("get up and running", "estimated total compute power").

Re the /settings/hardware link being merged-but-not-yet-deployed: noted, this can land once it's live.