Serving /api/history (and /api/forecasts) built a ~12 KB String +
JsonDocument every 15 s; over days this fragmented the ESP8266 heap until
the TCP stack could no longer send a full response, causing the web page
to fail with ERR_CONTENT_LENGTH_MISMATCH. Stream both array endpoints via
chunked transfer (small stack buffer, no big allocations). Add free-heap
to /api/current and Serial, plus a low-memory safety restart (history is
persisted first).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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>
Record each forecast change (Zambretti letter transition) with a
timestamp into a 24-entry ring buffer, persisted to LittleFS and
restored on boot. New /api/forecasts endpoint and a 'Forecast log'
panel in the web UI (newest first, category colour, timestamp).
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>
