feat(hero): carved inscription across the attic

The reference's most distinctive architectural feature is three lines of incised capitals across the attic.
inscription() lays 112 letter marks in three lines, in the shadow stone so they read as dark incisions at 45 m
rather than disappearing into a same-colour relief - which is exactly what the first attempt did.

Positioning was the lesson: the parapet is 1.2 m deep and stands in FRONT of the wall plane, so marks seated on
FRONT_Y were hidden behind it and rendered invisible. They are now seated on the parapet face (FRONT_Y + 0.40),
which is where the reference puts the lettering too.

Still open in the architectural pass, recorded in TODO.md: medallion relief (the discs are flush and empty),
banner lettering (needs a texture, not geometry), and depth on the capitals and window grilles.

Rows 4-6 re-rendered and pending.

Screenshots/README.md

@@ -16,9 +16,9 @@ Both capture passes are produced by [`Tools/review/render_screenshots.sh`](../To
 | 1 | ReviewMap | ![character feet](review/review-character-feet.png) | [x] | approved |
 | 2 | ReviewMap | ![character](review/review-character.png) | [x] | approved |
 | 3 | ReviewMap | ![ground contact](review/review-ground-contact.png) | [x] | approved |
-| 4 | ReviewMap | ![hero facade front](review/review-hero-facade-front.png) | [ ] | re-rendered with the pale marble-limestone albedo and a bright near-neutral tint, per the owner's note: the stone now reads as low-saturation pale concrete/marble rather than warm rubble; architectural detail (carved inscription, medallions, banner lettering, capital and grille depth) is still the next pass |
-| 5 | ReviewMap | ![hero facade oblique](review/review-hero-facade-oblique.png) | [ ] | re-rendered with the pale marble-limestone albedo and a bright near-neutral tint, per the owner's note: the stone now reads as low-saturation pale concrete/marble rather than warm rubble; architectural detail (carved inscription, medallions, banner lettering, capital and grille depth) is still the next pass |
-| 6 | ReviewMap | ![hero portals](review/review-hero-portals.png) | [ ] | re-rendered with the pale marble-limestone albedo and a bright near-neutral tint, per the owner's note: the stone now reads as low-saturation pale concrete/marble rather than warm rubble; architectural detail (carved inscription, medallions, banner lettering, capital and grille depth) is still the next pass |
+| 4 | ReviewMap | ![hero facade front](review/review-hero-facade-front.png) | [ ] | re-rendered with the carved inscription: three lines of incised letter marks across the attic band, seated on the parapet face so they are not hidden behind it; the stone reads pale marble-limestone. Still open: medallions do not read, banner lettering, capital and grille depth |
+| 5 | ReviewMap | ![hero facade oblique](review/review-hero-facade-oblique.png) | [ ] | re-rendered with the carved inscription: three lines of incised letter marks across the attic band, seated on the parapet face so they are not hidden behind it; the stone reads pale marble-limestone. Still open: medallions do not read, banner lettering, capital and grille depth |
+| 6 | ReviewMap | ![hero portals](review/review-hero-portals.png) | [ ] | re-rendered with the carved inscription: three lines of incised letter marks across the attic band, seated on the parapet face so they are not hidden behind it; the stone reads pale marble-limestone. Still open: medallions do not read, banner lettering, capital and grille depth |
 | 7 | ReviewMap | ![npc prefab](review/review-npc-prefab.png) | [x] |  |
 | 8 | ReviewMap | ![overview](review/review-overview.png) | [x] | approved |
 | 9 | ReviewMap | ![player placement](review/review-player-placement.png) | [x] | approved |