Support Astro 7

[AlexMPLeite]

Summary

Adds support for Astro 7. The @keystatic/astro integration code is unchanged — only its peerDependencies range is widened — and the example/template projects are upgraded to Astro 7 with Vite 8-compatible integrations.

Changes

• Widen @keystatic/astro peerDependencies to 2 || 3 || 4 || 5 || 6 || 7 (+ bump its dev astro to ^7.0.4)
• Bump astro to ^7.0.4 in dev-projects/astro, dev-projects/astro-content, templates/astro
• Upgrade official integrations for Vite 8: @astrojs/react@^6, @astrojs/node@^11, @astrojs/markdoc@^2, @astrojs/sitemap@^3.7.3, @tailwindcss/vite/tailwindcss@^4.3.2
• Add changeset (@keystatic/astro minor)

Check plan

• pnpm check:types passes
• pnpm check:lint and pnpm check:format pass
• pnpm build:packages produces packages/astro/dist/*
• pnpm --filter @example/astro build succeeds (server + Node adapter)
• pnpm --filter @example/astro-content build succeeds (Tailwind 4 CSS-first, Content Layer)
• pnpm --filter @keystatic/templates-astro build succeeds with prerendered public pages
• pnpm --filter @example/astro dev — GET /keystatic/ 200 (admin UI bundle), /keystatic/collection/posts 200, GET /api/keystatic/github/login 307

[changeset-bot]

🦋 Changeset detected

Latest commit: 9d74c5c

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@keystatic/astro	Minor

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[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	tailwindcss@​4.3.2
	@​astrojs/​sitemap@​3.7.3
	@​astrojs/​node@​11.0.0
	@​astrojs/​react@​6.0.0
	@​astrojs/​markdoc@​2.0.1
	astro@​7.0.4
	@​tailwindcss/​vite@​4.3.2

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[socket-security]

Warning

Review the following alerts detected in dependencies.

According to your organization's Security Policy, it is recommended to resolve "Warn" alerts. Learn more about Socket for GitHub.

Action	Severity	Alert  (click "▶" to expand/collapse)
Warn		Obfuscated code: npm @emnapi/runtime is 90.0% likely obfuscated Confidence: 0.90 Location: Package overview From: pnpm-lock.yaml → npm/@astrojs/react@6.0.0 → npm/@tailwindcss/vite@4.3.2 → npm/astro@7.0.4 → npm/@emnapi/runtime@1.11.1 ℹ Read more on: This package | This alert | What is obfuscated code? Next steps: Take a moment to review the security alert above. Review the linked package source code to understand the potential risk. Ensure the package is not malicious before proceeding. If you're unsure how to proceed, reach out to your security team or ask the Socket team for help at support@socket.dev. Suggestion: Packages should not obfuscate their code. Consider not using packages with obfuscated code. Mark the package as acceptable risk. To ignore this alert only in this pull request, reply with the comment @SocketSecurity ignore npm/@emnapi/runtime@1.11.1. You can also ignore all packages with @SocketSecurity ignore-all. To ignore an alert for all future pull requests, use Socket's Dashboard to change the triage state of this alert.
Warn		Obfuscated code: npm astro is 90.0% likely obfuscated Confidence: 0.90 Location: Package overview From: dev-projects/astro-content/package.json → npm/astro@7.0.4 ℹ Read more on: This package | This alert | What is obfuscated code? Next steps: Take a moment to review the security alert above. Review the linked package source code to understand the potential risk. Ensure the package is not malicious before proceeding. If you're unsure how to proceed, reach out to your security team or ask the Socket team for help at support@socket.dev. Suggestion: Packages should not obfuscate their code. Consider not using packages with obfuscated code. Mark the package as acceptable risk. To ignore this alert only in this pull request, reply with the comment @SocketSecurity ignore npm/astro@7.0.4. You can also ignore all packages with @SocketSecurity ignore-all. To ignore an alert for all future pull requests, use Socket's Dashboard to change the triage state of this alert.

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