- Add Pdftract.swift.tera for main public API with type aliases
- Update Methods.swift.tera with async throws functions and AsyncThrowingStream for streaming
- Update Errors.swift.tera with 8 error types implementing LocalizedError
- Update Types.swift.tera with Source enum, Options structs, and all Codable types
- Update ConformanceTests.swift.tera with XCTest-based conformance suite
- Update README.md.tera with full documentation (install, usage, error handling)
- Update Package.swift.tera with macOS(.v13) and Linux platform support
Closes pdftract-5lvpu