2483d embedded wallets pass

[m4sterbunny]

Description

Simplification how the cryptography is presented
Proofs
Applies docs style

DOES NOT - touch images

Issue(s) fixed

Partial fix for 2483 #

Preview

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

Low Risk
Primarily documentation copy/structure changes plus adding KaTeX CSS and dependency; low risk aside from potential build/styling issues if KaTeX assets or integrity hashes are incorrect.

Overview
Updates Embedded Wallets documentation to clarify and simplify how key management works, with heavier emphasis on SSS vs TSS/MPC distinctions, Torus Network terminology, and more consistent wording/links across how-it-works and infrastructure/* pages.

Adds a reusable _sdk-key-model-table.mdx and embeds it in key pages (SDK overview and architecture docs) to clearly show which SDK families reconstruct keys and which do not.

Enables math rendering styling by adding KaTeX as a dependency and including the KaTeX stylesheet in docusaurus.config.js.

^{Written by Cursor Bugbot for commit fa52a29. This will update automatically on new commits. Configure here.}

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Project	Deployment	Actions	Updated (UTC)
metamask-docs	Ready	Preview, Comment	Jan 30, 2026 8:21am

[socket-security]

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

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	katex@​0.16.22 ⏵ 0.16.27			+1	-3

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[socket-security]

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This PR previously contained dependency changes with security issues that have been resolved, removed, or ignored.

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[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.