feat: Dilithium signatures

[czareko]

Dilithium (ML-DSA-87, NIST FIPS 204) post-quantum signature support for access keys in NEAR

• Protocol feature: Introduce ProtocolFeature::DilithiumSignatures enabled from protocol version 202.

• core/crypto – Cryptographic layer (key types, signatures, verification) - Implemented Dilithium public keys, secret keys, and signatures via qp-rusty-crystals-dilithium.

• core/primitives – Transaction and action validation at protocol level - Transactions validated with Dilithium keys based on protocol version (allow only when DilithiumSignatures is enabled).

• runtime – Verifying transaction signatures during block execution - Dilithium signatures verified in the verifier.

• rosetta-rpc – Rosetta-compatible API (blockchain indexing) - Support CurveType::Dilithium and SignatureType::Dilithium in models.

• tools/mirror – Migration tool between networks - Dilithium keys mapped during migration.

• integration-tests – End-to-end tests (transactions, blocks, runtime) - Added create_runtime_node_with_dilithium() helper with protocol 202, and tests test_add_key_dilithium_runtime and test_transfer_signed_by_dilithium_runtime.

• RuntimeUser – User abstraction for signing and sending transactions - Added new_with_protocol_version() and pass protocol version from genesis, so tests run with protocol 202.

• Protocol version: No change to NIGHTLY_PROTOCOL_VERSION; Dilithium remains in the "not yet in Nightly" bucket (202); tests use explicit protocol_version = 202.

• Run tests: cargo test --package integration-tests --features test_features -- dilithium --show-output

TODO (Optional)

• Dilithium implicit accounts – derive_dilithium_implicit_account_id, AccountType::DilithiumImplicitAccount, runtime handling in action_implicit_account_creation_transfer. Requires format for account ID (e.g. prefix 0d + hex).
• Wallet contract – Support for Dilithium keys (public_key_kind = 2) in the ETH-style wallet contract ABI and verification logic.

Commands for local run:
Init: cargo run --profile dev-release -p neard -- init
Start: cargo run --profile dev-release -p neard -- run