Document Shamir mnemonic recovery

[ihsraham]

Deliverables

• Add a source-backed Shamir Secret Sharing guide for splitting, storing, verifying, and recovering English BIP-39 mnemonics.
• Correct the WDK Utils configuration and API reference for package-root imports, Node.js/browser/React Native randomness, share constraints, Promise failures, and compatibility limits.
• Add the guide to the WDK Utils overview and sidebar in Guides, before Configuration and API Reference.
• Regenerate llms.txt and llms-full.txt with 330/330 source-route parity.

Source baseline

• @tetherto/wdk-utils@1.0.0-beta.11
• Shamir implementation PR #34, first shipped in v1.0.0-beta.10

This is a root-exported WDK Utils capability, not a standalone package or @tetherto/wdk-utils/shamir subpath. The source checksum is an integrity check, not share authentication; the guide requires applications to authenticate exact share bytes and validate the recovered wallet identity against an independently protected public identifier.

Validation

• Node.js 22.22.2: npm ci
• Exact CI command: NEXT_PUBLIC_DOCS_ORIGIN=https://docs.wdk.tether.io npm run quality
• Full link crawl — 330 MDX files, 2,743 links, and 0 broken internal, anchor, or external links
• Production static build — 336/336 routes generated, 330 per-page Markdown files, and 0 broken built links
• Local static HTTP checks — guide, WDK Utils pages, per-page Markdown, llms.txt, and llms-full.txt returned 200 with expected content types
• WDK Utils source verification — 39/39 focused Shamir tests and lint passed
• GitHub Docs Quality Gates and both Socket checks passed on ea26d95

The initial CI run failed on an outdated VS Code MCP documentation URL in an existing MCP Toolkit page. This branch updates that URL to its canonical location and regenerates llms-full.txt; the fresh full quality run passes.

Screenshots

Sidebar entry

Navigation tree

Tools and Infrastructure
└── Validate inputs and manage key material
    ├── Guides
    │   └── Split and Recover a Mnemonic  ← this page
    ├── Configuration
    └── API Reference

Rendered page

[kinsta]

Preview deployments for wdk-docs prod ⚡️

Status	Branch preview	Commit preview
✅ Ready	Visit preview	Visit preview

Commit: dba78cf631667659edaf36109708bdd8f53cf6a5

Deployment ID: 41742185-38a2-46f4-9199-64eb62417c84

Static site name: wdk-docs-prod-pbpbt

[kinsta]

Preview deployments for wdk-docs staging ⚡️

Status	Branch preview	Commit preview
✅ Ready	Visit preview	Visit preview

Commit: dba78cf631667659edaf36109708bdd8f53cf6a5

Deployment ID: 431961a2-8b06-4053-a5c7-5cf3d9f8262d

Static site name: wdk-docs-ve3eh