Analyzed test failures from bf-1wczm execution. Found:
- No test hangs detected (all modules completed in <1s)
- 11 test failures across 2 modules due to fixture issues
- encoding_recovery: 5 PDF fixtures corrupted (missing /Root reference, 0 pages)
- cjk_encoding: 5 tests failed due to path resolution issues
Proposed fix strategy:
1. Regenerate corrupted PDF fixtures in tests/fixtures/encoding/
2. Fix path resolution using CARGO_MANIFEST_DIR in cjk_encoding.rs
3. Add fixture validation to CI
Closes bf-n5w42.
