chore: release v0.6.0

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0.6.0 (2026-06-24)

Minor Changes

• Add T5 hardfork contract bindings, including refreshed ABIs, AccountKeychain helpers, TIP20 role/admin/reward controls, and stricter ABI response decoding. (by @stevencartavia, #62)
• Add T6 contract bindings: TIP-1028 receive policies (TIP403Registry
• receive-policy helpers and ReceivePolicyGuard) and the TIP-1020
• SignatureVerifier precompile, along with their precompile addresses and
• refreshed ABIs. (by @stevencartavia, #62)
• Support the T6 (TIP-1049) KeyAuthorization wire format: encode and decode the
• new is_admin and account fields (plus the trailing witness field) using the
• trailing-canonical RLP layout. Adds admin-key validation, canonical-RLP decoding
• (KeyAuthorization.decode / SignedKeyAuthorization.decode), and to_json
• support. expiry=0 is now rejected — use None for "never expires". (by @stevencartavia, #62)
• Expose the T6 (TIP-1049) stateful keychain signature checks on the
• SignatureVerifier precompile binding: verify_keychain(account, hash, signature)
• and verify_keychain_admin(account, hash, signature). Bumped the vendored
• tempo-std ABI ref to pick up the verifyKeychain / verifyKeychainAdmin
• additions to ISignatureVerifier. (by @stevencartavia, #62)