Format filenames in embedded-wallets and add redirects in Readme.md and vercel.json

[swastik7805]

Description

This PR refactors filename conventions in the embedded-wallets/sdk/ directory to satisfy the markdown-formatting.mdc guideline (lowercase letters and dashes only).

Previously, many files in the usage/ sections used camelCase names that mirrored technical API methods. This PR standardizes them across all SDK platforms (iOS, Android, React Native, Flutter, Unity, Unreal, and JS).

Key Changes:

• File Renames: Moved ~55 .mdx files from camelCase to kebab-case (e.g., getUserInfo.mdx ➞ get-user-info.mdx, enableMFA.mdx ➞ enable-mfa.mdx).
• Sidebar Update: Updated ew-sidebar.js config to point to the new lowercase-dashed paths.
• Redirects: Added 301 redirects in vercel.json for every renamed path to prevent broken links for users with bookmarks or external references.
• Internal Link Cleanup: Performed a repository-wide search and replace to update all relative internal links referencing the old filenames in Readme.md.

Issue(s) fixed

Fixes #2863 proposed by @bgravenorst .

Preview

The changes impact the URL structure of the "Usage" section across all Embedded Wallets SDKs. Redirects have been verified in vercel.json.

Before:

After:

Checklist

• If this PR updates or adds documentation content that changes or adds technical meaning, it has received an approval from an engineer or DevRel from the relevant team.
• If this PR updates or adds documentation content, it has received an approval from a technical writer.

External contributor checklist

• I've read the contribution guidelines.
• I've created a new issue (or assigned myself to an existing issue) describing what this PR addresses.

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Note

Medium Risk
Mostly documentation routing changes, but it touches many URLs and relies on comprehensive redirects; any missed mapping could cause broken links or sidebar 404s.

Overview
Standardizes Embedded Wallets SDK usage doc slugs across Android, iOS, Flutter, React Native, Unity, Unreal, and JS by switching function-page links from camelCase to kebab-case in each platform usage/README.mdx.

Updates the Docusaurus sidebar (ew-sidebar.js) to reference the new kebab-case doc IDs, and adds permanent (301) Vercel redirects in vercel.json from the old camelCase routes to the new kebab-case routes to avoid breaking existing inbound links.

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[swastik7805]

@bgravenorst @alexandratran @AyushBherwani1998 @yashovardhan hey guys, i have fixed issue #2863 by updating filenames as per markdown-formatting.mdc and update redirect links in respective Readme.md and vercel.json.
Also resolved the phantom redirects as stated by cursor-bit.

PR is updated and ready for review.

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Project	Deployment	Actions	Updated (UTC)
metamask-docs	Ready	Preview, Comment	Apr 20, 2026 0:21am

[bgravenorst]

Thanks for the contribution @swastik7805 🚀