Docs: add Cloudflare post-deploy runbook

[richardjoo]

What does this PR do?

Adds a Cloudflare post-deploy runbook and links it from the Cloudflare deployment and REST API docs.

Closes #

Type of change

• Bug fix
• Feature (requires maintainer-approved Discussion)
• Refactor (no behavior change)
• Translation
• Documentation
• Performance improvement
• Tests
• Chore (dependencies, CI, tooling)

Checklist

• I have read CONTRIBUTING.md
• pnpm typecheck passes
• pnpm lint passes
• pnpm test passes (or targeted tests for my change)
• pnpm format has been run
• I have added/updated tests for my changes (if applicable)
• User-visible strings in the admin UI are wrapped for translation (if applicable). Do not include messages.po changes except in translation PRs — a workflow extracts catalogs on merge to main.
• I have added a changeset (if this PR changes a published package)
• New features link to an approved Discussion: https://github.com/emdash-cms/emdash/discussions/...

AI-generated code disclosure

• This PR includes AI-generated code — model/tool: GPT-5.4 / OpenCode

Screenshots / test output

• prettier --check on changed docs files

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[Copilot]

Pull request overview

Adds Cloudflare post-deploy operational documentation and links it into the docs navigation and related deployment/API pages.

Changes:

• Adds a new runbooks index and Cloudflare post-deploy operations runbook.
• Adds Runbooks to the Starlight sidebar.
• Links the Cloudflare runbook from deployment and REST API docs.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
docs/src/content/docs/runbooks/index.mdx	Introduces the runbooks landing page.
docs/src/content/docs/runbooks/deployment/cloudflare-post-deploy-operations.mdx	Adds the Cloudflare post-deploy checklist.
docs/src/content/docs/reference/rest-api.mdx	Adds a cross-link to the Cloudflare runbook.
docs/src/content/docs/deployment/cloudflare.mdx	Documents API-based management after Cloudflare deploy.
docs/astro.config.mjs	Adds Runbooks entries to the docs sidebar.

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[richardjoo]

You’re right that the baseline token guidance was inconsistent with the next verification step.

I’ve updated the runbook to include content:read alongside content:write and media:write, so the subsequent GET /_emdash/api/content/posts check matches the recommended token scope set.

[richardjoo]

Agreed. I moved the Cloudflare post-deploy runbook link up under the Authentication section and removed the duplicated response-format heading so the section structure stays:

• Authentication
• Response format

That keeps the cross-link in a more appropriate place and avoids the duplicated heading.