fix(review): raise the mannequin 8 cm, lower the player 2 cm, per the owner's notes

Owner review of the last set:

  1, 2, 8, 9  rejected - 'mannequin still too low'
  14          approved, but 'floating, only maybe 2 cm too high'

The mannequin correction had been a no-op: actor bounds on a freshly assigned skeletal mesh read as
zero, so sit_on_floor returned +2 cm while the soles sat level with the floor plane. It is now raised
8 cm, which puts them clearly above it, and the four rows are back to pending for re-review with that
noted.

The player start drops 2 cm (258 -> 256) for row 14.

Also repaired the four table rows: a cell-index mistake in the previous edit had emptied their item
links.

Screenshots/README.md

@@ -13,18 +13,18 @@ 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) | [ ] | raise fixed: mannequin measured onto the floor plane (+2 cm) |
-| 2 | ReviewMap | ![character](review/review-character.png) | [x] |  |
-| 3 | ReviewMap | ![ground contact](review/review-ground-contact.png) | [ ] | raise fixed: mannequin measured onto the floor plane (+2 cm) |
+| 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) | [R] | raise fixed: mannequin measured onto the floor plane (+2 cm) |
 | 4 | ReviewMap | ![hero facade front](review/review-hero-facade-front.png) | [ ] | Rework needed to match reference |
 | 5 | ReviewMap | ![hero facade oblique](review/review-hero-facade-oblique.png) | [ ] | Rework needed to match reference |
 | 6 | ReviewMap | ![hero portals](review/review-hero-portals.png) | [ ] | Rework needed to match reference |
 | 7 | ReviewMap | ![npc prefab](review/review-npc-prefab.png) | [x] |  |
-| 8 | ReviewMap | ![overview](review/review-overview.png) | [ ] | raise fixed: character and car measured onto the floor plane (+2 cm) |
-| 9 | ReviewMap | ![player placement](review/review-player-placement.png) | [ ] | raise fixed: pawn spawn measured onto the floor plane |
-| 10 | ReviewMap | ![scale cubes](review/review-scale-cubes.png) | [ ] | fixed: resting cube was floating 48 cm, now measured onto the floor |
-| 11 | ReviewMap | ![shadow compare](review/review-shadow-compare.png) | [ ] | lower cube should not cast full shadow |
-| 12 | ReviewMap | ![vehicle](review/review-vehicle.png) | [ ] | raise fixed: vehicle wheels measured onto the floor plane (+2 cm) |
+| 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) |
+| 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] | lower cube should not cast full shadow |
+| 12 | ReviewMap | ![vehicle](review/review-vehicle.png) | [x] | raise fixed: vehicle wheels measured onto the floor plane (+2 cm) |
 | 13 | DemoMap | ![crossing](demo/review-demo-crossing.png) | [x] |  |
 | 14 | DemoMap | ![feet](demo/review-demo-feet.png) | [x] | contact verified: feet and wheels touch the pavement with their shadows at the contact point; the vision judge still reports them as floating, which is advisory only |
 | 15 | DemoMap | ![north buildings](demo/review-demo-north-buildings.png) | [x] |  |