Added speaker identification section explaining the three-tier system
(enrolled/anonymous/unidentified), the promote workflow, and enrollment
options. Updated speakers API table with /speakers/promote endpoint.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
BINAURAL_ROADMAP: Full status update with implementation details,
three-signal localization table, key discoveries section.
README: Updated features table (ITD, multi-speaker, cocktail party),
new API endpoints (/speakers/tracked, /speakers/focus), file structure.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
README: Updated architecture diagram, features table, new endpoints
(/scene, /scene/events, /scene/heatmap), file structure, USB protocol
notes (VAD from processed_doa NaN, spenergy always zero).
BINAURAL_ROADMAP: Mark #1-4, #6, #8, #10 as done.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
