Genesis: catalog learns the new artifacts

The dev-only /catalog now shows everything the four feature tracks
added: a materials row (timber vs stone, quoins/lintels/slate, masonry
mid-build, thatch-unreachable-on-stone), the chest-granted gildhall, a
treasure row for the three chest states, quarry blocks, a WILDLIFE
section (bird/deer/dog/sheep/fish/firefly, animated), a TERRAIN
section (lake bakes via the newly extracted bakeLake, outcrop tints,
four seasonal oaks), and sky-tint strips for normal/eclipse/storm
days. Coverage notes refreshed 10 -> 12: water-life and static-animal
gaps closed; new honest gaps opened (stone stops at the walls, nothing
uses the water, no predators, seasons stop at the leaves).

Extractions are additive and re-wired at the real call sites
(bakeLake, outcropTint, drawFirefly, sampleLake). Build still emits
exactly 7 public pages; all 55 timeline cases pass.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01B7t8Qgo2z11gAegjSKAr7b

Author: CodeManEthan