Add StatePulse provider (5 on-chain x402 endpoints)

[Ahmed-Achtatar]

Add StatePulse — native x402 on-chain data

StatePulse is a pay-per-call x402 API on Base. This adds 5 on-chain endpoints that fit the crypto category, using upstream_type: x402 (same model as the CoinMarketCap listing) — no API key needed, claw402 pays the upstream x402 charge automatically and keeps the markup.

Gateway route	Upstream	upstream_cost	user_price
/api/v1/crypto/statepulse/balances	/blockchain/balances	$0.02	$0.03
/api/v1/crypto/statepulse/gas-history	/blockchain/gas-history	$0.01	$0.015
/api/v1/crypto/statepulse/funding-rates	/blockchain/funding-rates	$0.02	$0.03
/api/v1/crypto/statepulse/abi	/blockchain/abi	$0.03	$0.04
/api/v1/crypto/statepulse/simulate	/blockchain/simulate	$0.15	$0.18

• Upstream: https://statepulse-api.hahavoid0.workers.dev (live, listed on CDP x402 Bazaar)
• All routes are POST / application/json; request bodies documented per-route.
• Logo included at providers/statepulse.svg.