fix(3d): complete ACIS solid rendering

- track per-face coverage and retain safe display fallbacks
- tessellate shared NURBS, pcurve trims and periodic surfaces
- pin the matching acadifc decoder revision

Cargo.toml

@@ -91,7 +91,7 @@ windows-sys = { version = "0.61", features = ["Win32_UI_Shell", "Win32_UI_Window
 
 [patch.crates-io]
 # Track the verified DWG round-trip, I/O, and unified PERF fixes.
-acadrust = { git = "https://github.com/OpenAEC-Foundation/acadifc.git", rev = "ff7a7a3" }
+acadrust = { git = "https://github.com/OpenAEC-Foundation/acadifc.git", rev = "8cc4793" }
 
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
 # Native enables the plugin host runtime (out-of-process plugins).