Add Anda x402 to ecosystem

[zensh]

Description

Adds Anda x402 facilitator to ecosystem page. Anda x402 is a decentralized, fully on-chain x402 payment facilitator on the Internet Computer (ICP), with support for Ethereum, Solana, BNB Chain, Base, and more coming soon.

Tests

Checklist

• [x] I have formatted and linted my code
• [x] All new and existing tests pass
• [x] My commits are signed (required for merge) -- you may need to rebase if you initially pushed unsigned commits

[cb-heimdall]

🟡 Heimdall Review Status

Requirement	Status	More Info
Reviews	🟡 0/1	Denominator calculation Show calculation 1 if user is bot 0 1 if user is external 0 2 if repo is sensitive 0 From .codeflow.yml 1 Additional review requirements Show calculation Max 0 0 From CODEOWNERS 0 Global minimum 0 Max 1 1 1 if commit is unverified 1 Sum 2

[vercel[bot]]

@zensh is attempting to deploy a commit to the Coinbase Team on Vercel.

A member of the Team first needs to authorize it.