Cargo: codec 2c2a3fb, kernel 2dc2fca, graph 14275ea

DXF values read into exactly sized strings (codec #114): reading a
DXF in the web worker no longer spends most of its time in malloc.

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

plugins/opencad-python/Cargo.lock

@@ -1264,7 +1264,7 @@ dependencies = [
 [[package]]
 name = "opencadcodec"
 version = "0.6.0"
-source = "git+https://github.com/HakanSeven12/opencadcodec.git?rev=fddcbae#fddcbae2fd7ca8f9d404bb8ca5cc8611a28d1c67"
+source = "git+https://github.com/HakanSeven12/opencadcodec.git?rev=2c2a3fb#2c2a3fb06f0401ccf867154891e9877528cc60f2"
 dependencies = [
  "anyhow",
  "bitflags",