Extract maybeOverfeedPoop() helper so both handleFeedItem (tap/fridge)
and handleFeedFromDrag (drag-to-feed) run the same overfeed threshold
and random poop roll. Previously drag-to-feed bypassed the check
entirely, meaning overfeed poop could never trigger via drag.
Also fix orphaned JSDoc in generators.ts: move CHEW_CYCLE_SEC and its
docblock above the generateChewingMouth function so each symbol's
JSDoc attaches to the correct declaration.
filemon
2602182bb7