onnxruntime is in requirements-ml.txt only (deliberately kept out of the
lean web image and CI). The top-level `import onnxruntime` broke pytest
collection of test_ml_tagger / test_ml_suggestions / test_tasks_ml even
though those are pure-logic/integration-marked, because collection
imports the module.
Mirrors the embedder's lazy-torch pattern: onnxruntime is imported inside
Tagger.load(), placed AFTER the file-existence checks so
test_load_raises_when_model_missing still gets RuntimeError (not
ModuleNotFoundError) in onnxruntime-less environments. self._session
annotation dropped to a comment to avoid an eval-time ort reference.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
bvandeusen
4ebe779b7c