chore: take the kernel and codec that draw the missing faces

Two faults kept faces out of a lifted solid, and both looked like a document
problem rather than a reader one — the lift reported no loss at all.

An edge's stored parameter pair can span the right length from the wrong
place, putting a straight curve beside the face it bounds instead of along
it. And a loop's coedges are not always listed in the order the ring runs,
which the old chaining could not fix: it reversed the next piece in the list,
where what was needed was a different piece.

Either one leaves a ring that crosses itself, which ear clipping declines, so
the face is dropped without a word.

Handle 176 of Annotation-2D-Mesh-Solid-BIM.dwg now meshes all fourteen of its
faces, where it managed ten. Across that file: 105 of 107 solids complete, 865
of 867 faces. Across VILLA_NEU_IFC3.dwg: 672 of 763 solids, 58922 of 59033
faces.

The fallback sampler stays until that reaches all of them — a complete mesh is
what stops it running, and 111 faces still need it.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

Cargo.toml

@@ -30,7 +30,7 @@ env_logger = "0.11"
 # The CAD stack is reached through acadifc, which re-exports the codec and
 # the geometry kernel. Aliased to `acadrust` so existing `use acadrust::…`
 # paths keep resolving.
-acadrust = { package = "acadifc", git = "https://github.com/OpenAEC-Foundation/acadifc.git", rev = "88e3308", features = ["serde", "offset"] }
+acadrust = { package = "acadifc", git = "https://github.com/OpenAEC-Foundation/acadifc.git", rev = "1ffe44e", features = ["serde", "offset"] }
 dwg-thumbnailer = { path = "crates/dwg-thumbnailer" }
 flate2 = "1"
 image = { version = "0.25", default-features = false, features = ["png", "jpeg", "bmp", "tiff"] }