- aztec-testnet, solana, ripple x-upstreams now carry their drpc slug as
chain label (was empty -> dshackle ignored the upstreams)
- reference-rpc-endpoint.json: every chain now has a protocol field
(eth/bitcoin/solana/ripple/aztec/...) for protocol-family dispatch in
scripts, plus https://{slug}.drpc.org appended as LAST fallback url
(independent endpoints stay preferred; overrides win entirely)
- registry grew 247 -> 333 entries (all drpc protocols imported, not just eth)
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
