Don't trust client JSON at the storage layer:
- sanitize_game_state() runs before merge AND on the merged result (heals legacy
rows). Word Search: keep only finds whose cells actually spell a real word in
that day's grid (validated when the puzzle exists, shape-only 4-12 alpha +
cell-length otherwise), dedupe, renumber ci. Word: validate status enum, guess
count/length/alpha, colour-row shape, terminal answer/why.
- Completion is now derived from the real puzzle word count (foundWords ==
expected), not a client-sent `ms` — so stats can't be inflated by junk.
- Date validated as YYYY-MM-DD at the API (400 otherwise) — no junk/future rows.
Tests: sanitizer-rejects-junk + bad-date 400; existing tests updated to use
real-shaped data (the sanitizer is a good forcing function). 237 pytest + 11
vitest green.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
thejayman77
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