Address round-2 review on PR #914:
- Add corrupt_glyphs to the document_classifier_flag_total label comment (it is
a live flag value emitted by record_document_classification).
- Mirror the full_text-vs-sampled control-ratio NOTE into classify_pdf so the
diagnostic path's under-detection trade-off is documented in place.
- Add test_classify_pdf_glyph_corrupt_routes_structured for routing symmetry on
the standalone classify_pdf path.
(SonarCloud quality gate is green — the prior S1244 finding was fixed last round.)
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
