Patch notes

15.20.3

Removed item-effect speech bubbles: ドン, ぐるる, すっきり, Hg xN, ちまっ, でかっ, へにゃ, ムキッ, and mm....
Reorganized the tool palette into color-coded collapsible groups: operation, food/water/grass, medicine/effects, habitat/living things, hazards/obstacles.
Changed the tool UI ball icon to a soccer-ball emoji preview.
Changed time phases: morning 05:00, day 10:00, evening 17:00, night 20:00.
Increased genkotsu knockback for Tarinai and ants; genkotsu now also blasts zunchi away.
Genkotsu damage now adds fear/stress and decreases Tarinai openness.
Rain weather overlay is now diagonal streaks. Fallen rain-water items, zunda juice, and mercury remain horizontal oval item sprites.
Tightened mobile operation UI visibility to smartphone-class compact touch devices.
Sleep-disease Tarinai can be moved by ant hauling without snapping back to their sleep anchor.

Consolidated documentation into dense English files; left docs/prompt.txt untouched.
Restored rain, revised water/zunda/mercury item sprites, added zunchi-slave head zunchi, fight win rate, fight defeat chance, and post-wake lock.
Earlier patches added parameter items, persistent item effects, WebP assets, sound categories, push notifications, ant systems, family tree UI, performance manager, event bus, manifest generation, CSS split, and large-file JS split.