- Moved promiscuis-flock-you/{main.cpp,partitions.csv,platformio.ini} to root
- Removed BLE firmware (src/main.cpp, src/CMakeLists.txt) — the 'main' branch
still has it
- Removed the subfolder README (root README has the full walkthrough)
- Updated README paths and build commands for the flat layout
- Retagged the BLE companion section as a pointer to the 'main' branch
The 'promiscious' branch is now purely the WiFi promiscuous firmware plus
the shared Flask app (api/), datasets, and branding. Builds green with
the standard 'pio run' from the repo root.