fix(hero): seat the motto band and surround on the parapet face

The motto band and moulded surround had the same burial as the medallions: offset
0.06 left their front face at Y -0.44, inside the 1.2 m-deep parapet, so the
'inset panel with a moulded surround' never rendered. Only the inscription (moved
to 0.40 in the previous commit) read.

- Band recessed at offset 0.34 (Y -0.16), surround proud at 0.43 (Y -0.07),
  inscription stays 0.40 (Y -0.10).
- Band is now light stone (was stone_dark): a dark band at the parapet face would
  have sat directly behind the dark inscription marks and swallowed them. The
  reference is dark incised lettering on a pale band.
- Removed the dead duplicate 'Hero_MottoBand 0.40' entry - the earlier 0.06 match
  won, so the 0.40 was silently ignored.

Rendered and judged; the advisory judge no longer flags the band.

TODO.md

@@ -224,6 +224,7 @@ Open:
 - [x] **Make the generated ashlar albedo render.** Two blockers, both measured: the map's generic material pass was **overriding every hero slot** with the kit's flat stone (`comp.set_material` on `Hero_Facade`), and assigning authored materials to the _mesh's_ slot list does not persist because `get_editor_property("static_materials")` returns a copy. What works: exclude the hero from the generic pass and set **component-level overrides** to the authored `*_Ref` materials in both builders (`apply_hero_materials()`). The elevation now shows coursed, grainy limestone.
 - [x] Carved inscription: `inscription()` in `Tools/blender/hero_facade_build.py` lays 112 letter marks in three lines across the attic, in the shadow stone so they read at 45 m. They had to be **seated on the parapet face** (`FRONT_Y + 0.40`): the parapet is 1.2 m deep and stands in front of the wall plane, so marks at the wall plane were hidden behind it.
 - [x] Medallion relief that reads at 45 m. **Measured first, then fixed:** the discs were not just flat - they were **buried**. `seat_on_front` put `Hero_Medallion` at offset 0.08 → front face Y −0.42, while the parapet (1.2 m deep) stands at Y −0.15, so both medallions were inside the parapet and never rendered (the motto band and surround have the same bug at offset 0.06). Fixed: three stepped layers per medallion — `Hero_MedallionRim` (0.55 m, dark, offset 0.36 → Y −0.14), `Hero_MedallionField` (0.38 m, light, offset 0.43 → Y −0.07), `Hero_MedallionBoss` (0.15 m, dark, offset 0.50 → Y 0.00) — a 7 cm step each way so the rim/field/boss read as relief. Moved from ±6.2 (inside the inscription text, ±6.87) to ±9.8. Rendered and judged; the two-model judge is advisory-pessimistic (`no` 0.93) and does not flag medallions any more. Owner review pending.
+- [x] Motto band and surround — same burial bug (offset 0.06 → front Y −0.44). The band is now **light stone** (was `stone_dark`, which would have swallowed the dark lettering once visible), recessed at offset 0.34 (Y −0.16), with the moulded surround proud at offset 0.43 (Y −0.07) and the inscription at 0.40 (Y −0.10); the dead duplicate `Hero_MottoBand 0.40` entry is removed. Rendered and judged; the judge (`no` 0.93) no longer flags the band, only the stone warmth/column fluting the owner has already directed lighter. Owner review pending.
 - [ ] Banner lettering (JIMMY KIMMEL LIVE) - needs a texture; the banners are flat panels today.
 - [ ] Crimson banner tone and the JIMMY KIMMEL LIVE lettering.
 - [ ] Re-render the three ReviewMap staging shots and put them back in the status table for review.