Add Supra Namespace

[supra-bharatjain]

Add Supra namespace

This PR introduces the Supra namespace to the ChainAgnostic namespaces registry.

Added Files

• supra/README.md - Namespace profile for the Supra ecosystem
• supra/caip2.md - CAIP-2 chain identification specification for Supra

Summary

Supra is a Layer 1 blockchain built on Move, with vertically integrated services — native price oracles, distributed verifiable randomness (dVRF), and on-chain automation. This PR establishes the supra namespace for identifying Supra-based chains.

Chain Identification (CAIP-2)

Chains in the Supra namespace are identified by their numeric chain_id, which is assigned at genesis and requires no transformation to be used as a CAIP-2 reference.

Network	Chain ID	CAIP-2 Identifier
Mainnet	8	supra:8
Testnet	6	supra:6

Resolution

To resolve a blockchain reference for the Supra namespace, make an HTTP GET
request to the REST RPC of a fullnode, for example:

// Mainnet - 8
curl https://rpc-mainnet.supra.com/rpc/v3/transactions/chain_id
// Testnet - 6
curl https://rpc-testnet.supra.com/rpc/v3/transactions/chain_id

The response is the chain_id as an integer that can be used directly as the
CAIP-2 reference.

References

• Supra Docs
• Supra GitHub
• Supra Network