Add ephemeral resource sections to provider best practices

[SBGoods]

What

Add ephemeral resource sections to:

• Provider Design Principles - website/docs/plugin/best-practices/hashicorp-provider-design-principles.mdx
• Sensitive State best practices - website/docs/plugin/best-practices/sensitive-state.mdx
• Framework Benefits - website/docs/plugin/framework-benefits.mdx

Why

Screenshots

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Merge Checklist

If items do not apply to your changes, add (N/A) and mark them as complete.

Pull Request

• One or more labels describe the type of change (e.g. clarification) and associated product (e.g. HCP Terraform ).
• Description links to related pull requests or issues, if any.

Content

• Redirects have been added to website/redirects.js for moved, renamed, or deleted pages.
• API documentation and the API Changelog have been updated.
• Links to related content where appropriate (e.g., API endpoints, permissions, etc.).
• Pages with related content are updated and link to this content when appropriate.
• Sidebar navigation files have been updated for added, deleted, reordered, or renamed pages.
• New pages have metadata (page name and description) at the top.
• New images are 2048 px wide. They have HashiCorp standard annotation color (#F92672) and format (rectangle with rounded corners), blurred sensitive details (e.g. credentials, usernames, user icons), and descriptive alt text in the markdown for accessibility.
• New code blocks have the correct syntax and line breaks to eliminate horizontal scroll bars.
• UI elements (button names, page names, etc.) are bolded.
• The Vercel website preview successfully deployed.

Reviews

• I or someone else reviewed the content for technical accuracy.
• I or someone else reviewed the content for typos, punctuation, spelling, and grammar.

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Name	Status	Preview	Comments	Updated (UTC)
terraform-docs-common	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Mar 17, 2025 8:15pm

[austinvalle]

LGTM, I have one suggestion that is technically a nit, but if you agree + update the PR I can just re-approve

[austinvalle]

🚀