Flatten so the repo root is the Arduino sketchbook; the project lives in
WeatherPredictor/. Add a collection index README at the root and move the
detailed project README into WeatherPredictor/.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This LAN's router does not resolve external hostnames, so NTP uses
hard-coded Cloudflare/Google anycast IPs instead of names.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>