SDK / MM Connect new structure

[alexandratran]

Description

Restructure SDK docs for MM Connect. We will work off this branch until MM Connect launch. This PR includes the following major changes:

• Former SDK and Wallet API docs are consolidated into one MM Connect section. (Note: Much of the legacy Wallet API docs are removed, or consolidated into the SDK EVM section.)
• The MM Connect section is split into ecosystems via a sub-navbar component: Multichain, EVM, Solana, etc.
• New Solana Wallet Adapter docs are added.
• Links are updated throughout the docs and redirects are added as needed.
• The former interactive OpenRPC parser is replaced with a simplified API reference component, for easier maintenance.
• Global content (tutorials, quickstarts, navigation) are updated with new links/branding as needed.

Preview: https://metamask-docs-r82sneizb-consensys-ddffed67.vercel.app/metamask-connect/

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.

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Note

Medium Risk
Medium risk because it rehomes major doc sections (routing/sidebars/links) and adds large new content; primary risk is broken navigation, redirects, or stale internal references rather than runtime code impact.

Overview
Introduces a new metamask-connect documentation area and rewires Docusaurus to serve it as a first-class docs plugin (new sidebar, updated footer/nav labels, updated SEO metadata, and new LLM export targets).

Removes/retirements of prior SDK/Wallet doc integration points by dropping the old wallet/sdk docs plugins and associated dynamic JSON-RPC sidebar generation, then updates existing versioned smart-accounts/delegation docs to point at the new MetaMask Connect transaction batching guides.

Adds substantial new MetaMask Connect EVM content (architecture overview, migration-from-legacy-SDK guide, quickstarts, and guides for accounts, networks, signing, transactions, batching, contract interaction, and MetaMask-exclusive features like deeplinks and batch RPC requests), plus minor repo maintenance updates (.cursor ignore, linkspector directories/ignores, and CONTRIBUTING tweaks).

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Project	Deployment	Actions	Updated (UTC)
metamask-docs	Ready	Preview, ✅ 16 resolved	Mar 20, 2026 7:03pm