- Add missing modules to lib.rs (apt, package_manager, ostree, test_support, etc.)
- Fix DebPackageMetadata type compatibility with PackageInfo
- Add missing description and scripts fields to DebPackageMetadata
- Create apt.rs module alias for apt_compat
- Create minimal apt_ostree_integration.rs with required types
- Fix type conversions in package_manager.rs resolve_dependencies
- Update all test instances of DebPackageMetadata with new fields
- All Rust code now compiles successfully
- All tests now pass successfully