docs(website): add keybindings guide to the docs site

[benvinegar]

Adds the docs-site page the [keybindings] surface was missing.

• New Configure → Keybindings page covering the remapping model (user bindings replace defaults, exclusive chord claims, false/[] to unbind, first-in-file conflict resolution) and the chord grammar, linking the repo's docs/keybindings.md for the full built-in command table rather than duplicating it.
• Sidebar entry in astro.config.mjs, a "Remap the defaults" pointer at the end of the keyboard-and-mouse page, and a "Remap a keyboard shortcut" common-task link on the docs index.
• Empty changeset (docs-only).

Every behavioral claim on the page was fact-checked against src/ui/lib/keymap.ts, src/extension-api/keys.ts, and src/core/config.ts (the user-config-only rule). bun run website:build and bun run website:links pass.

(Earlier note about a sidebar conflict with #631 no longer applies — #631 now adds its own sidebar group instead of touching the Configure items, so the two merge independently.)

🤖 Generated with Claude Code

https://claude.ai/code/session_01KHY9ReVesQXwKdRU47MwJ9

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Project	Deployment	Actions	Updated (UTC)
hunk-web	Ready	Preview	Jul 29, 2026 12:57am

[greptile-apps]

Greptile Summary

Adds a keybindings configuration guide and integrates it into the documentation site.

• Documents remapping, conflict resolution, unbinding, chord syntax, extension commands, and configuration scope.
• Adds the guide to the Configure sidebar and links it from the docs index and keyboard-and-mouse guide.
• Adds an empty changeset for the documentation-only update.

Confidence Score: 5/5

The documentation-only pull request appears safe to merge.

The new route and links follow existing Starlight conventions, and the documented keybinding semantics, command identifiers, chord grammar, widget interception, and user-config scope agree with the current implementation.

Important Files Changed

Filename	Overview
website/src/content/docs/docs/configure/keybindings.md	Adds an accurate keybindings guide whose behavioral claims and examples align with the current configuration, parsing, and command-resolution implementations.
website/astro.config.mjs	Adds a correctly mapped sidebar entry for the new Starlight content route.
website/src/content/docs/docs/index.mdx	Adds a valid common-task link to the new keybindings guide.
website/src/content/docs/docs/start/keyboard-and-mouse.md	Adds a valid contextual link from the existing shortcut overview to the remapping guide.
.changeset/website-keybindings-docs.md	Adds an intentionally empty changeset for this documentation-only change.

_{Reviews (1): Last reviewed commit: "docs(website): add keybindings guide to ..." | Re-trigger Greptile}