Verified existing test fixtures for unmapped glyph testing:
- no-mapping.pdf: Minimal fixture with 3 unmapped glyphs (g001, g002, g003)
- unmapped-glyphs.pdf: Comprehensive fixture with 10 character codes (mixed mapped/unmapped)
Acceptance criteria:
- Test fixtures exist in tests/fixtures/encoding/
- Configuration includes unmapped_glyph_names (g001-g009 in build/unmapped-glyph-names.json)
- Chosen glyphs exist in fixture CMAPs
- Fixtures are in correct location
- Configuration parses correctly
All fixtures are production-ready and actively used in encoding_recovery.rs tests.
Verification note: notes/bf-3bn8d.md
Closes bf-3bn8d