privacy-core — shared, halo2-free foundation for the privacy-indexer and privacy-relayer.
Contains only the light, proving-stack-free pieces both services need:
ethereum— event-log decode + bundle/erc/finalize calldata encode (ethabi).types— plain serde data structures (stored bundle, indexed notes/bundles).intent— BTC shield-intent helpers (single-sig federation V1).
The Fr/circuit/witness machinery (proving, note decryption, key derivation, Poseidon) deliberately stays out of this crate so the services don't pull in halo2.