The mosaic palette gains a climate-biome dimension for the Grassland surface-class:
savanna / temperate / boreal / tundra now read distinctly rather than collapsing to
one biome-blind palette (the D-246 biome-awareness fix).
- atlas/mosaic.rs: ClimateBiome (from temperature_c + moisture_q) + four biome-keyed
Grassland palettes; palette(class, biome). Savanna carries scattered Forest copses,
tundra carries lichen + sparse bare ground and no forest. §8-safe (veg + water only).
- atlas/voxel.rs: derive the biome; a cold barren district (tundra/boreal) now takes
the sparse mosaic rather than staying blank — worlds that read "0 vegetated / blank"
now read structured-sparse (D-245 climate-appropriateness). vegetated_districts
8→20 and 0→39 on the cold validation bodies.
- data/mosaic_constants.toml: biome-keyed grassland mirror.
- docs/design/alien-ecology-vocabulary.md: Miri's full biome × register naming layer
(the cane/vane/wrack/husk/drum-root native lexicon + Earth-register names) — the
derived-label source for the palette and Phase-5 rendering.
Believability golden regenerated. Full server suite green. Forest biomes and the
introduced-Earth register are the noted continuation.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
jpmschweitzerandClaude Opus 4.8
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