Replace the batch rtl_power SSE pipeline with continuous I/Q streaming
via WebSocket for smooth ~25fps waterfall display. The server captures
raw I/Q samples (rtl_sdr/rx_sdr), computes Hann-windowed FFT, and
sends compact binary frames (1035 bytes vs ~15KB JSON, 93% reduction).
Client falls back to existing SSE path if WebSocket is unavailable.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Same fix as build_fm_demod_command() - the parameter was being
passed but not defined in the method signatures.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
The bias_t parameter was being passed to build_fm_demod_command()
but wasn't defined in the method signatures, causing an unexpected
keyword argument error.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Airspy support:
- Add AIRSPY to SDRType enum and driver mappings
- Create AirspyCommandBuilder using SoapySDR tools (rx_fm, readsb, rtl_433)
- Register in SDRFactory and add to hardware type dropdown
- Supports Airspy R2/Mini (24MHz-1.8GHz) and HF+ devices
GPS coordinate persistence:
- Save observer location to localStorage when manually entered or via geolocation
- Restore saved coordinates on page load in both index.html and adsb_dashboard.html
- Coordinates are shared between both pages
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
