[docs](trx-rs): deep codebase review with updated architecture and improvement plan
Architecture.md: added detailed component notes covering rig_task internals,
audio pipeline, remote client dual-connection model, FrontendRuntimeContext
field groups, decoder implementation patterns, and FT-817 backend workarounds.
Improvement-Areas.md: added 10 new findings from deep review including LIFO
command batching, unbounded decoder history, missing jitter in backoff, rig
task crash recovery, SoapySdrRig constructor complexity, and protocol versioning.
CLAUDE.md: refreshed review observations with accurate LOC counts, prioritized
improvement items (P1/P2/P3), and new strengths identified.
https://claude.ai/code/session_011aiY4GfrmDUrpYVvEUGNGm
Signed-off-by: Claude <noreply@anthropic.com>
Claude
9df71cf36c