Analyzed all 7 fuzz targets and their pdftract-core feature requirements.
Confirmed that current configuration is correct and complete:
- All targets build successfully
- 'profiles' feature correctly enables serde_yaml for profile_yaml.rs
- Workspace path syntax is correct
- serde_yaml symbols verified in profile_yaml binary
No dependency issues found - current configuration is PASS.
Closes bf-4i7rs.
