Update wallets.mdx to include Coinbase Embedded Wallets

[x402Foundation]

What is the purpose of the change?

This PR updates the Sei Wallet Providers Guide to include Coinbase Embedded Wallets as a first-class wallet option. The goal is to help developers understand that Embedded Wallets offer seedless account creation, passkey-based authentication, and native support for EVM derivation paths, making them ideal for Sei applications.

Describe the changes to the documentation

• Added Coinbase Embedded Wallets to the Types of Wallets section as a new category (“Embedded Wallets”).
• Added a full row for Coinbase Embedded Wallets in the Recommended Wallets table, including auth method, coin types, supported environments, and link to documentation.
• Added contextual guidance on why Embedded Wallets avoid coin-type mismatches and improve derivation safety.
• Added Embedded Wallets to Integration Guides with a link to the official Coinbase documentation.
• Added a brief description highlighting Coinbase Embedded Wallets as the most seamless choice for Sei developers.

Notes

• All additions were made with minimal disruption to the existing structure.
• No existing wallet provider content was modified or removed.
• Coinbase Embedded Wallets were added in a neutral, documentation-appropriate tone to avoid marketing bias.

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Project	Deployment	Preview	Comments	Updated (UTC)
sei-docs	Ready	Preview	Comment	Dec 2, 2025 11:52am