THALis: live EEG visualization modules

RMS / traces / topomap / quality display — different things, don't read them as interchangeable. deliberately awful synthetic input might be a good way to test whether these views actually help

• archived modules (adba8f3): console.py orchestrates the display; heatmap.py shows RMS amplitude; quality.py holds quality indicators; time_series.py displays raw/filtered channels; topomap.py maps band-power values onto a scalp layout.

Motor-imagery cue timing

• reference location: the visualization utility directory, ultimately src/tools/visualization/. Streaming callbacks were extended to supply display data. The commit also preserves error screenshots and another development run.

• review questions: what window and units drive RMS/band-power values? Are “quality” indicators directly measured quantities or derived heuristics? In particular, do not assume an impedance value is a hardware measurement merely because the archive lists impedance among quality concepts.

• debug use: compare the raw and filtered trace, verify channel names against the cap montage, then inspect aggregate views. A scalp interpolation can look smooth even with a mislabeled channel. Preserve display scaling and filter settings with screenshots used as evidence.

• archived code references: adba8f3.