Replace trx-rs.toml.example with separate trx-server.toml.example
and trx-client.toml.example. Update OVERVIEW.md and README.md
references from trx-bin to trx-server/trx-client.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Signed-off-by: Stanislaw Grams <stanislawgrams@gmail.com>
