Graywolf RXT test build 8d41f0ac

RXT test build based on Graywolf 0.14.14. Commit: 8d41f0a.

• Add a free-form Authenticated command field, keeping the five shortcut buttons. Commands use the saved key, persistent counter, signed identity and conversation route. The RF recipient remains separate from the signed identity.
• Validate the command format and complete signed message against the 67-character APRS limit. Oversized input is rejected without consuming a counter.
• Show an explicit unknown-DX indication when station reception data or advertised DX is unavailable.

After upgrading, restart Graywolf and refresh the browser (Ctrl+F5). Existing keys and configuration are retained. In the target conversation's remote-control panel, enter the command alone, without @@# or !RC1.

Validation: Go remote-control/API tests, 585 Web tests and the production Web build passed. Cross-platform packages and checksums verified before publication. The operator validated signed RXT=? and OTA=? queries over RF to GENATX, receiving RXT=ON and OTA NORMAL ARMED=0 PROFILE=0.

Limits: firmware must support the requested command. Signed OTA is supported by iGate experiment/lora-ota at ca82256; PROFILE, FAST and NORMAL setting changes still need radio validation. An APRS ACK alone does not confirm execution. Commands are trimmed and uppercased, start with an ASCII letter, and exclude spaces, colons, braces, pipes and tildes. Up to 41 command characters fit, decreasing as the counter grows. The illustrated PDFs predate the new field; use the updated HTML handbook.

Documentation at this commit: Remote control, protocol and architecture, DX reports.