Restore wiki discoverability summaries and prior-art research
0.3.0 wiki: guided calibration, leak hint, meter photos, research notes Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01FvUmBoSVfw5K6h6qRNJBaS
Apply copy, technical and beginner review findings Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01FvUmBoSVfw5K6h6qRNJBaS
Absorb README technical detail; add Tested-Hardware, Configuration-Reference, Protocol Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01FvUmBoSVfw5K6h6qRNJBaS