v0.5.0

Added

• Added tronz-rpc-types, a network-independent crate for TRON domain types,
  protobuf messages, and codecs. tronz-provider::types remains a compatible
  re-export, and committed generated code removes protoc from normal builds.
• Added multi-key TronWallet support, strict owner-key routing, multisig
  permissions, unsigned transaction builds, and multi-signer helpers.
• Added composable provider layers, DynProvider, custom fillers, gRPC
  middleware, and named ReadProvider/WalletProvider stacks.
• Added EnergyFiller, which estimates contract energy and applies the current
  chain price, configurable margin, bounds, cache, and failure policy.
• Added configurable pending-transaction polling, receipt success checks, and
  solidified receipt support.
• Added TronWeb-compatible message signing, TIP-712 typed data, synchronous
  signer support, and PBKDF2 keystore decryption.
• Added provider-bound tron_sol! improvements, Forge artifact deployment,
  event ranges and watchers, anonymous events, and typed TRC20/TRC721 call
  builders.
• Added BlockInfo::new, contract fee-limit controls, ABI lookup helpers, and
  additional primitive conversions.

Changed (Breaking)

• TransportErrorKind::Grpc is replaced by transport-neutral
  Rpc { code: RpcStatusCode, message }; Connect now boxes its source error.
  Use is_rpc() and status_code() instead of is_grpc() and tonic::Code.
• Recommended fillers now use dynamic EnergyFiller pricing instead of a flat
  fee limit. Use with_fee_limit to keep a fixed limit.
• Providers erase their transport inside RootProvider. TronProvider drops
  its transport associated type, is object-safe and unsealed, and requires only
  root(). FilledProvider<T, F> becomes FilledProvider<F>.
• TronTransport and SolidityTransport are object-safe and no longer require
  Clone or an error associated type.
• SignerFiller is replaced by WalletFiller; TronSigner::sign_hash now takes
  &B256, and provider signing uses TronWallet.
• Transaction and block lookups return Option when the requested value is not
  present.
• TxFiller::status and FillerStatus are removed.
• Contract caller also selects the sender for writes; deployments use from.
• send_transaction rejects requests without an owner.
• Log::topics is private and Log::new validates the four-topic limit.
• Keystore KDF parameters now use KdfparamsType;
  tronz::signer_aws moves to tronz::signers::aws; and
  TronAbiConversionError requires tronz-abi/alloy.
• ContractType is exhaustive so adding an operation without a transport route
  fails at compile time.

Fixed

• Verify node-built transactions, contracts, permission IDs, and locally
  computed transaction IDs before signing.
• Distinguish missing transactions and blocks from malformed node responses.
• Preserve the transaction ID when a broadcast outcome is ambiguous and never
  retry a broadcast automatically.
• Make pending timeouts cover total wall-clock time and continue polling through
  transient node failures while preserving the last error.
• Fixed keystore validation, Forge bytecode deployment, contract fee limits,
  dynamic contract sends, typed event decode errors, anonymous events, and the
  TRC721 four-argument safeTransferFrom overload.

Changed

• ProviderBuilder::new() installs recommended fillers; default() installs
  none. Custom transports connect with connect_transport.
• on_grpc* is deprecated in favor of connect_grpc*. Pending transaction
  await_* aliases are deprecated in favor of receipt-oriented names.
• The facade full feature now includes mnemonic, keystore, and TIP-712 support.