Resolve crates/av1enc/src/decide.rs: main replaced the long try_tx/code_tx
argument lists with the TransformBlock struct. try_tx and code_tx keep the
branch's scratch-buffer design (TxScratch taken out of the decider) and take
a TransformBlock; reconstruct now takes its three output buffers as a
ReconBuffers struct to satisfy the denied clippy::too_many_arguments.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
