[vaprdev]

Summary

Merges the ten visual improvements (each with --no-ff, so every PR's commits land in main), fixes what only showed up once they were combined, and regenerates the screenshots, GIFs and menu.

• Give each wallpaper its own sunset #2 Give each wallpaper its own sunset
• Add richer daytime color, aerial haze and framing #3 Richer daytime color, aerial haze and framing (grade.ts)
• Give every night clear light structure #4 Light structure at night: lighter horizons, moonlit rims, warm light pools (light.ts)
• Add cloud kinds lit from the sun or moon, and cloud shadows #5 Cloud kinds, orb-lit shading and cloud shadows
• Reflect the scene in the beach sea, prehistoric lake and tundra ice #6 Reflections in the beach sea, prehistoric lake and tundra ice (water.ts)
• Ground creatures and props with contact and cast shadows #7 Contact and cast shadows (shadow.ts)
• Draw bolder detail on terminal cells and steady quadrant cells #8 Draw for terminal cells: bolder fronds, corn and gravel; steady quadrant cells
• Walk creatures on jointed legs with real gaits #9 Jointed legs, walk cycles and consistent scale for creatures (creature.ts)
• Add a shared wind with gusts that roll across each scene #10 Shared gusts that roll across each scene (wind.ts)
• Move subjects out from behind text and steer creatures with a text map #11 Move subjects out from behind text, steered by a text-coverage map

Fixes applied during integration:

• Shadows: overlapping shadows deepen to the strongest one instead of stacking into dark patches.
• Sunset clouds: beach and farm use cirrus, prehistoric stratus; heaps of cumulus read poorly against a low sun.
• Beach: the sea reflects before the palms are drawn, so palms on the sand aren't mirrored.
• Wind: gentler gust lean and flutter.
• Fox and farmer sizes brought back in line with the rest of their scenes.
• Desert: lighter sunset dunes so the ground doesn't go black.
• Regenerated the gallery and seasonal screenshots, README GIFs and menu.png, and documented the new helpers.

Evidence

Before (main) on the left, after on the right.

Day

Sunset

Night

Terminal previews behind text

Verification: bun run typecheck passes; bun dev/check.ts --quiet --max-ms=60 passes 90/90 runs in octant mode and with WALLPAPER_OCTANTS=0 (quadrants), no errors or flicker over budget; screenshots, GIFs and menu.png regenerated; checked live in OpenCode.

Merge Danger

Door: two-way

Art and helper modules only; revert the merge commit to go back.

Blast Radius: visuals

Every wallpaper's look changes, and the API gains new exports (haze, mottle, lightPool, groundShadow, reflect, creature and wind helpers). Scene.resize gains an optional cells argument and scenes an optional textMap; existing third-party scenes keep working.