atsunatsu 33712c29fc feat(cw): add built-in CW Morse code decoder for linear transponders ...

- Add CwDsp with FIR bandpass filter, envelope detection, Goertzel tone detector
- Add CwDecoder with real-time Morse timing analysis and character lookup
- Add CW state/actions to RadarState, wire into RadarViewModel
- Add collapsible CW decoder panel to transceivers page
- 19 unit tests covering DSP, Morse table, and decoder state
- Shares IAudioCapture with SSTV, auto-stops SSTV when CW starts

2026-07-31 18:44:49 +08:00

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plans

feat(cw): add built-in CW Morse code decoder for linear transponders

2026-07-31 18:44:49 +08:00