[AI] Add Models entry to homepage AI sidebar

[superhighfives]

Adds a Models entry pointing to /ai/models/ as the first item under Build → AI in the homepage left-rail sidebar (src/pages/index.astro).

Resulting order: Models, Workers AI, AI Gateway, Agents, Sandbox SDK, Vectorize, AI Search, AI Crawl Control.

The per-section /ai/ sidebar already surfaces Models (via src/content/docs/ai/models/index.mdx with sidebar.order: 2); this PR adds parity to the homepage curated sidebar so the Models catalog is reachable one click away from /.

Independent of #31176 (the Hosted-vs-Proxied filter on /workers-ai/models/); different files, no overlap.

[cloudflare-docs-bot]

Review

✅ No style-guide issues found in commit d08e1cb.

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[github-actions]

This pull request requires reviews from CODEOWNERS as it changes files that match the following patterns:

Pattern	Owners
*.astro	@cloudflare/content-engineering, @kodster28

[Copilot]

Pull request overview

Adds a “Models” shortcut to the curated homepage left-rail sidebar under Build → AI, aligning the homepage navigation with the existing /ai/ section sidebar so the unified AI model catalog is reachable directly from /.

Changes:

• Add a new AI sidebar item labeled Models linking to /ai/models/ as the first entry under Build → AI.

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[ask-bonk]

No issues found.

Summary: Adds a Models link to the homepage curated sidebar under Build → AI, placing it first in the AI group for parity with the per-section /ai/ sidebar. Clean, minimal change — link format and ordering are correct.

[ask-bonk]

Review complete for PR #31178.

Labels applied: documentation, product:ai

Verdict: No issues found. Approved.

Summary: This PR adds a Models entry (linking to /ai/models/) as the first item under Build → AI in the homepage left-rail sidebar. The change is minimal and focused — the link uses the correct root-relative format with a trailing slash, and the ordering aligns with the existing /ai/ section sidebar. No style guide violations, broken links, or frontmatter issues to flag.

github run

[superhighfives]

@ethulia @kodster28, it looks like the models sidebar link got dropped, so this PR replaces it.

[github-actions]

Preview URL: https://d08e1cb4.preview.developers.cloudflare.com
Preview Branch URL: https://cgleason-ai-models-sidebar-entry.preview.developers.cloudflare.com