PR #172 merged. T-1084 (mosaic) + T-1085 (biosphere register) → done. Remaining T-1085 work split into T-1086 (propagate Linnaeus to bodies.proper_name) and T-1087 (Forest/Wetland biome palettes + introduced-Earth register + §8 material follow-up). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>