Cargo: codec d4ac66e, kernel 85eb912, graph 8b315ab; MCP schema digest

Codec: the colour index palette at its standard intensities (#115), ACIS
colour attributes kept in binary data and multi-body split (#116, #118).
Kernel: spline curves and surfaces recognised as analytic shapes (#89).
The MCP tool schema digest follows the two PDF import automation actions
#1841 added.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

crates/ocs_web_worker/Cargo.toml

@@ -8,7 +8,7 @@ publish = false
 crate-type = ["cdylib"]
 
 [dependencies]
-codec = { package = "opencadcodec", git = "https://github.com/HakanSeven12/opencadcodec.git", rev = "0dc8585", features = ["serde"] }
+codec = { package = "opencadcodec", git = "https://github.com/HakanSeven12/opencadcodec.git", rev = "d4ac66e", features = ["serde"] }
 bincode = "1.3"
 serde = { version = "1", features = ["derive"] }
 console_error_panic_hook = "0.1"