Add new JSON configuration for 2xStake node

[kuatcapital]

Thanks a lot 🙏!

[greptile-apps]

Greptile Overview

Greptile Summary

Added new testnet validator configuration for 2xStake (ID 216) with all required fields properly formatted.

• JSON structure matches the repository schema
• Filename correctly follows <secp>.json naming convention
• SECP key length (66 chars) and BLS key length (96 chars) are valid
• All required fields present: id, name, secp, bls, website, description, logo, x
• Logo URL points to GitHub raw content
• No duplicate validator ID or SECP key detected

Confidence Score: 5/5

• This PR is safe to merge with minimal risk
• Simple validator configuration addition that follows the repository's established schema and naming conventions. The automated validation checks will verify on-chain key matching and logo accessibility before merge.
• No files require special attention

Important Files Changed

Filename	Overview
testnet/02f7fabc4a117fa666b663d61289401fd4cd0be404559ba06476d16b80129b31cd.json	Added validator configuration for 2xStake node with ID 216, includes all required fields and follows schema format

_{Last reviewed commit: b13e7c8}