Add TRAIN Protocol to the Ecosystem page

[annatantushyan19]

Requesting to add TRAIN Protocol to the Base Ecosystem page.

TRAIN is a trustless and permissionless cross-chain asset bridging and swapping protocol designed to securely scale across an unlimited number of chains.
The TRAIN protocol uses an intent/solver based system secured by Atomic Swaps and Local Verification, ensuring uniform, trustless security across all chains. Any network or solver can join the protocol without approvals and gatekeepers.

You can read more details here:
Web: https://www.train.tech/
Docs: https://docs.train.tech/
Bridging dApp: https://app.train.tech/

[vercel]

@annatantushyan19 is attempting to deploy a commit to the Coinbase Team on Vercel.

A member of the Team first needs to authorize it.

[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 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 0 Sum 1