fix(review): mannequin down 2 cm; 8 and 9 approved

Owner review: rows 1, 2 and 3 show the mannequin about 2 cm too high; rows 8 and 9 show nothing wrong.

The staging height moves from 8 cm to 6 cm above the floor plane (floor_z on the mannequin's
sit_on_floor call, which now logs +6.0), and rows 8 and 9 are approved. Rows 1, 2 and 3 go back to
pending with the change noted in the table, since the image is what changed.

Captures regenerated.

Screenshots/README.md

@@ -13,15 +13,15 @@ Both capture passes are produced by [`Tools/render_screenshots.sh`](../Tools/ren
 
 | # | Part | Item | Status | Note |
 | --- | --- | --- | --- | --- |
-| 1 | ReviewMap | ![character feet](review/review-character-feet.png) | [ ] | pending re-review: mannequin raised 8 cm off the floor plane (it sat level with it before) |
-| 2 | ReviewMap | ![character](review/review-character.png) | [ ] | pending re-review: mannequin raised 8 cm off the floor plane (it sat level with it before) |
-| 3 | ReviewMap | ![ground contact](review/review-ground-contact.png) | [ ] | pending re-review: mannequin raised 8 cm off the floor plane |
+| 1 | ReviewMap | ![character feet](review/review-character-feet.png) | [ ] | pending re-review: mannequin lowered 2 cm (8 -> 6 cm above the floor) |
+| 2 | ReviewMap | ![character](review/review-character.png) | [ ] | pending re-review: mannequin lowered 2 cm (8 -> 6 cm above the floor) |
+| 3 | ReviewMap | ![ground contact](review/review-ground-contact.png) | [ ] | pending re-review: mannequin lowered 2 cm (8 -> 6 cm above the floor) |
 | 4 | ReviewMap | ![hero facade front](review/review-hero-facade-front.png) | [ ] | moved to its own task: TODO.md -> hero facade rework |
 | 5 | ReviewMap | ![hero facade oblique](review/review-hero-facade-oblique.png) | [ ] | moved to its own task: TODO.md -> hero facade rework |
 | 6 | ReviewMap | ![hero portals](review/review-hero-portals.png) | [ ] | moved to its own task: TODO.md -> hero facade rework |
 | 7 | ReviewMap | ![npc prefab](review/review-npc-prefab.png) | [x] |  |
-| 8 | ReviewMap | ![overview](review/review-overview.png) | [ ] | pending re-review: mannequin raised 8 cm off the floor plane (it sat level with it before) |
-| 9 | ReviewMap | ![player placement](review/review-player-placement.png) | [ ] | pending re-review: mannequin raised 8 cm off the floor plane (it sat level with it before) |
+| 8 | ReviewMap | ![overview](review/review-overview.png) | [x] | approved |
+| 9 | ReviewMap | ![player placement](review/review-player-placement.png) | [x] | approved |
 | 10 | ReviewMap | ![scale cubes](review/review-scale-cubes.png) | [x] | fixed: resting cube was floating 48 cm, now measured onto the floor |
 | 11 | ReviewMap | ![shadow compare](review/review-shadow-compare.png) | [x] | approved |
 | 12 | ReviewMap | ![vehicle](review/review-vehicle.png) | [x] | approved |