- README: note NVS may be cleared by firmware uploads (requires re-running
flash_device.py); new Troubleshooting table covering the fast-blink fatal
state, captive-portal fallback, and no-counts cases.
- tools/serial_monitor.py: ESP32 RTS/DTR reset + serial capture with
per-line elapsed-time prefix. Used to distinguish "unprovisioned" vs
"WiFi failed" boot states (fast-blink LED alone is ambiguous).
- README project-tree updated to include lib/cv, docs/server-prompt-…,
and the new tool.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
