chore: pick up cadcodec #47 and cadkernel #66; guard the re-align length

- acadrust 7ea4247: clamped-knot degree and MINSERT reservation fixes
  (cadcodec #47). cadkernel a0b962a: dogleg fails on a non-finite
  Jacobian (cadkernel #66) and pins the same codec rev, so one acadrust
  stays in the graph.
- The axis re-alignment from #1361 retains its transformed length through
  retain_segment_length, which holds a zero-length segment with per-axis
  differences instead of a P2PDistance whose gradient is NaN there.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

Cargo.lock

@@ -86,7 +86,7 @@ checksum = "366ffbaa4442f4684d91e2cd7c5ea7c4ed8add41959a31447066e279e432b618"
 [[package]]
 name = "acadrust"
 version = "0.5.5"
-source = "git+https://github.com/HakanSeven12/cadcodec.git?rev=8a28c21#8a28c21537d5e5ab06a431b1741d0c2d2b098b15"
+source = "git+https://github.com/HakanSeven12/cadcodec.git?rev=7ea4247#7ea4247134af60c8c1617426849d4fa8233660c8"
 dependencies = [
  "ahash 0.8.12",
  "anyhow",
@@ -922,7 +922,7 @@ checksum = "fc652a48c352aef3ea3aed32080501cf3ef6ed5da78602a020c991775b0aff04"
 [[package]]
 name = "cadkernel"
 version = "0.1.0"
-source = "git+https://github.com/HakanSeven12/cadkernel.git?rev=0493b59#0493b59a06980e3b5b07bf3c73df0725a2e56c86"
+source = "git+https://github.com/HakanSeven12/cadkernel.git?rev=a0b962a#a0b962ae8045e7221ecb5d478adc5ad58e2706ba"
 dependencies = [
  "acadrust",
  "cavalier_contours",
@@ -933,7 +933,7 @@ dependencies = [
 [[package]]
 name = "cadkernel-constraints"
 version = "0.1.0"
-source = "git+https://github.com/HakanSeven12/cadkernel.git?rev=0493b59#0493b59a06980e3b5b07bf3c73df0725a2e56c86"
+source = "git+https://github.com/HakanSeven12/cadkernel.git?rev=a0b962a#a0b962ae8045e7221ecb5d478adc5ad58e2706ba"
 dependencies = [
  "nalgebra",
 ]