Probed remaining frame bytes for Bluetooth/power icons on a blank panel:
- found cross-wired glyph dots (byte0 bit7, byte4 bit7) and an I2C timeout
(byte8 bit4), but no standalone icon bits
- waveshare reference does not drive these icons; likely multi-bit or
unpopulated on the glass (cosmetic, deprioritized)
- restore temphummon.c as the active firmware build in CMakeLists
- bitprobe.c: interactive single-bit probe that discovered the display glyph
layout and the decimal point / percent sign bit positions
- temphummon.c: render top line '188.8°C' and bottom '88.8%' using the
verified decimal points (f[4], f[8] bit5) and percent sign (f[10] bit5)
- PROJECT_MEMORY.md: document full frame layout + empirical bit map
- README: add wiring table and project memory pointer
- add Waveshare reference zip and flake.lock
