Add Ethereum Snap installation and invocation code

[Semsemq]

Description

Related issues

Fixes:

Manual testing steps

1. Go to this page...

Screenshots/Recordings

Before

After

Pre-merge author checklist

• I've followed MetaMask Contributor Docs and MetaMask Extension Coding Standards.
• I've completed the PR template to the best of my ability
• I’ve included tests if applicable
• I’ve documented my code using JSDoc format if applicable
• I’ve applied the right labels on the PR (see labeling guidelines). Not required for external contributors.

Pre-merge reviewer checklist

• I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed).
• I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.

[vercel]

Deployment failed with the following error:

Resource is limited - try again in 8 hours (more than 100, code: "api-deployments-free-per-day").

Learn More: https://vercel.com/sumayyahs-projects-e04ab1d2?upgradeToPro=build-rate-limit

[cloudflare-workers-and-pages]

Deploying metamask-sdk with    Cloudflare Pages

Latest commit:	ed76123
Status:	🚫  Build failed.

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Deploying with    Cloudflare Workers

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Status	Name	Latest Commit	Updated (UTC)
❌ Deployment failed View logs	metamask-sdk	ed76123	Nov 10 2025, 06:25 PM