Update plan callouts: rename Basic to Hobby for Docs, fix tier assignments

[devin-ai-integration]

Update Docs plan callouts: rename Basic to Hobby, fix tier assignments

Summary

Updates plan-related callouts across Docs-product documentation pages to reflect the renamed plan ("Basic" → "Hobby" for Docs) and corrects tier assignments based on the current pricing page.

Plan rename:

• versions.mdx: "Basic" → "Hobby" in the versioning limits callout

Tier corrections (based on pricing page comparison table):

• password.mdx: Enterprise → Pro (password protection is available on Pro+Enterprise)
• rbac.mdx: Pro → Enterprise (RBAC is Enterprise-only)
• custom-react-components.mdx: Pro → Enterprise (Custom React is Enterprise-only)
• custom-header-footer.mdx: Pro → Enterprise (uses Custom React, which is Enterprise-only)
• api-key-injection.mdx: Pro → Enterprise (requires JWT/OAuth, which are Enterprise-only)

New callouts added:

• jwt-setup.mdx: Added Enterprise callout (JWT is Enterprise-only per pricing page)
• oauth-setup.mdx: Added Enterprise callout (OAuth is Enterprise-only per pricing page)

SDK-product pages were intentionally left unchanged since "Basic" is still the correct plan name for SDKs.

Review & Testing Checklist for Human

• Verify tier assignments against the Docs pricing comparison table: Cross-check each changed file's new tier (especially password → Pro, RBAC → Enterprise, API key injection → Enterprise, JWT/OAuth → Enterprise) against the live pricing page
• Confirm custom header/footer should be Enterprise: This was inferred from custom React being Enterprise — verify there isn't a separate "custom header/footer" line item at a different tier
• Confirm JWT and OAuth setup pages should have Enterprise callouts: These pages previously had no plan callout at all — verify these are truly Enterprise-gated features
• Check for any missed pages that reference plan names or need callouts added/removed. Pages that still use pro-plan.mdx on the Docs side (e.g., products.mdx, audiences.mdx, feature-flags.mdx, generate-websocket-ref.mdx, ask-fern/api-get-started.mdx) were left as-is — confirm those are still correct

Suggested test plan: Navigate to each changed page on the live docs preview and verify the callout renders with the correct plan tier text.

Notes

• Requested by: Fern Support
• Link to Devin run

[devin-ai-integration]

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[github-actions]

🌿 Preview your docs: https://fern-preview-a5e86652-3564-40e2-9564-0065849231f6.docs.buildwithfern.com/learn

Here are the markdown pages you've updated:

• learn/docs/authentication/features/api-key-injection
• learn/docs/authentication/setup/jwt
• learn/docs/authentication/setup/oauth
• learn/docs/authentication/setup/password-protection
• learn/docs/authentication/features/rbac
• learn/docs/customization/custom-react-components
• learn/docs/customization/header-and-footer
• learn/docs/configuration/versions