Answer M1: tract loads both face graphs once their dims are pinned

Neither InsightFace export parses as shipped -- SCRFD fails at its input
node, ArcFace at the first Conv -- which is the same wall dr-segment hit
on YOLO's dynamic export. Both load cleanly with the input dims frozen,
so the pure-Rust runtime holds for the face pipeline too.

tools/fix-face-model-shapes.sh does the freezing, and exists so the
artefact is reproducible rather than a binary someone once produced. It
takes two forms because the two graphs need different ones: ArcFace's
batch is a named dim_param, SCRFD's H and W are dynamic but unnamed.

Also notes YuNet loading with no intervention, which matters for the
licence question in faces.md 2.3.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

Cargo.lock

@@ -1447,6 +1447,19 @@ dependencies = [
  "zune-jpeg 0.4.21",
 ]
 
+[[package]]
+name = "dr-face"
+version = "0.7.0"
+dependencies = [
+ "env_logger",
+ "log",
+ "ndarray",
+ "ort",
+ "ort-tract",
+ "thiserror 2.0.20",
+ "zune-jpeg 0.4.21",
+]
+
 [[package]]
 name = "dr-film"
 version = "0.7.0"