Improve rigctl interoperability with hamlib/WSJT-X and stabilize FT-817 PTT handling.\n\n- support extended '+' command replies\n- accept decimal and MHz-style frequency inputs\n- retry set_freq rounded to 10 Hz on CAT alignment errors\n- add compatibility handling for get_level probes\n- broaden PTT command parsing and aliases\n- derive PTT capability dynamically from snapshot data\n- improve dump_state/dump_caps compatibility behavior\n- move temporary rigctl diagnostics to debug level\n- make FT-817 set_ptt more reliable with unlock/clear and double-send\n\nCo-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stanislaw Grams <stanislawgrams@gmail.com>
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