feedback6 R21F: an enemy flyer hovers FLY_HOVER above the road whatever tile it crosses (GitHub #277: one high-ground / forbidden block on its way lifted it 0.42 / 0.3 tiles and dropped it again like a step) — UnitView.sync keeps every enemy at z 0, operators and summons keep their tile top, the flyer's shadow lies on the tile under it (shadowZ) on the 2D and the 3D board; golden: unchanged

docs/ASSETS.md

@@ -299,7 +299,7 @@ Other renderer rules from research 07 §5.4–5.5:
 - **Choosing the model:** Front when the unit faces right or down; Front mirrored when facing left; Back when facing up — while it stands: a dead or knocked-out operator falls and lies with the Front model unless its Back skeleton has a Die clip of its own (131 of the 135 have none; DESIGN §22.1, GitHub issue #25).
 - **Attack speed:** set the attack `timeScale` to `duration / attackInterval`.
 - **Model size:** every skeleton is drawn at one `UNIT.modelScale` (render/style.js, 320 skeleton units per tile), which stands for the official standard. The official client also scales each enemy model in its battle prefab: the Graphic / FaceSwitcher / Spine transforms multiply to 0.27 for most enemies and for the operators' battle skins, but not for all of them. For example, 威龙 is 0.16, 妖怪 0.20 and 青铜镜 0.6. The skeletons themselves carry no such scale, because every enemy SkeletonDataAsset uses 0.01. So an enemy is drawn × data/enemies.json `modelScale` (its prefab's product ÷ 0.27, see docs/DATA.md; user playtest #6: 威龙 used to be drawn 1.35× a 妖怪 instead of 1.08×), and its HP bar sits on that model: at its setup-pose bounds' height × the same factors, or, for a skeleton without bounds, at the chibi headroom × `modelScale` (bosses 2.2 tiles). `tools/local-extract/enemy_scales.py` reads the products from a local client, and `tools/build-data.mjs MODEL_SCALES` keeps them. Two prefab quirks on top (PR #211 by @xcdoge; the owner's decision of 2026-10-06; docs/research/12 §3.1): the two 帝国炮火先兆者 are stretched vertically (`modelScaleY` 1.263: their Graphic scale is (0.19, 0.24, 0.24)) and 木制瑞印 is mirrored (`mirrorX`: a negative Graphic X scale) — `tools/local-extract/enemy_model_offsets.py` reads them, `tools/build-data.mjs MODEL_STRETCH_Y` / `MIRRORED_PREFABS` keep them.
-- **Flying units** hover `FLY_HOVER` = 1.3 tiles above the ground they cross (render/units.js; the client's single fly offset 0.35 in its character space, whose unit is the standard prefab scale 0.27 — docs/research/12): the body, its HP bar, damage numbers and hits ride the lift, the shadow stays on the ground tile, on the 2D and the 3D board alike (one camera drives both).
+- **Flying units** hover `FLY_HOVER` = 1.3 tiles up (render/units.js; the client's single fly offset 0.35 in its character space, whose unit is the standard prefab scale 0.27 — docs/research/12) — an enemy flyer above the road whatever tile it crosses (a high-ground or forbidden block under it is no step, GitHub #277), an operator or summon above its tile: the body, its HP bar, damage numbers and hits ride the lift, the shadow stays on the ground tile (the block top under an enemy flyer crossing one), on the 2D and the 3D board alike (one camera drives both).
 - **Enemy aliases:** `enemies[id].spineAliasOf` means the model belongs to another enemy. Two cases:
   - `_2` variants whose official prefab is the base one (鸭爵, 高普尼克, 流泪小子, 圆仔, 假想敌：胄, 假想敌：铳): the base model, as in the game.
   - an enemy whose own model no dump carries: 灼热源石虫 / 炽焰源石虫 (`enemy_1305_mhslim` / `_2`) use the plain 源石虫 on