Add plugins doc

[AyushBherwani1998]

Description

• Add plugins doc for the AW

Issue(s) fixed

Fixes #

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
Documentation-only changes (new plugin pages, nav updates, CLI reference alignment); no application code or security-sensitive runtime behavior.

Overview
Adds Agent Wallet plugin documentation as a new sidebar section (overview, install, build) plus reference/plugins, covering the beta mm plugins workflow, install consent, capabilities, manifest schema, PluginCommand, and related config keys (experimentalPlugins, experimentalAllowUnverifiedInstalls). The commands reference and error codes gain a mm plugins section and plugin error codes.

Navigation and content cleanup: removes the dedicated Aave V3 lend/borrow guide from the Guides list, overview capabilities table, and promo cards; Aave supply/withdraw remains documented under earn/yield vaults.

Price CLI docs are updated to match current behavior: mm price spot documents CAIP-19 --asset-ids and bare CAIP-2 chain ID resolution; mm price history documents optional --asset-type (native default) and adds a historical prices section in the balances guide. New validation codes (MISSING_ASSET_IDS, MISSING_ASSET_TYPE, INVALID_ASSET_ID) are documented.

Polymarket troubleshooting adds PREDICT_UNAVAILABLE_FOR_LEGAL_REASONS and clarifies how it differs from PREDICT_GEOBLOCKED.

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Project	Deployment	Actions	Updated
metamask-docs	Ready	Preview	Sep 3, 2026 7:52am UTC