1. Add 5 extended atmosphere colors to biomes.toml (globe renderer reads
from toml, not body_def) — cold_arid, hot_arid, tropical, boreal,
temperate_terminator. Remove dead martian entry. Slightly differentiate
colors from base classes.
2. Fix profile table raw identifiers — apply .replace('_', ' ') to class
field in wiki body pages.
3. Fix legend text overflow — truncate labels with ellipsis when step
size is too narrow for full text.
4. Fix title panel underscores — use .replace('_', ' ') instead of
.replace('_ringed', '').
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
"Biome" describes per-zone vegetation classification (Whittaker table).
"Planet class" describes overall planetary character. The conflation
caused the planet generator to misclassify ~270 bodies as barren.
Scope: systems.db column, schema SQL, Rust atlas code, wiki table
headers (Biome → Class), atlas proposal JSONs, all docs/decisions,
tooling scripts. Also normalizes atmosphere vocabulary (breathable →
standard) and expands planet class mapping to all 26 wiki values.
Unknown classes default to temperate for modder safety.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>