OpenSystemsDevelopment / qpdf

…sages, and clean up `QPDF.hh`.

… and `findEndstream` to `Objects`, remove `QPDF::PatternFinder` class, and update related logic for improved encapsulation.

…, replace direct calls with `QIntC` equivalents, and clean up `QPDF.hh`.

…:Doc`, rename related methods, and streamline usage across QPDFWriter and linearization modules.

… declarations across the codebase for improved encapsulation.

… `attempt_recovery` to `password_is_hex_key` and `suppress_recovery` to align with the CLI, update usage across the codebase, and streamline related logic.

…fields, replace direct member access across the codebase, and streamline related logic.

…te usage throughout the codebase, and streamline configurations.

…` to `Pages`, update methods to use relocated fields, and streamline cache handling.

… streamline error handling, and improve encapsulation.

…s, and improve encapsulation.

…ctions and improve encapsulation.

… and streamline stream handling.

…tion, and streamline stream registration logic.

…ta`and streamline foreign stream handling.

…oreign stream handling, and simplify return logic.

…e encapsulation, and streamline foreign stream handling.

…prove encapsulation, and streamline stream data handling.

…eamline foreign object handling, and simplify method structure.

…`Copier` usage, and simplify object copying logic.

…ne object copying logic, and simplify method structure.

…object reservation, and streamline method usage.

…rect_object`, simplify object replacement, and streamline method usage.

…eamline type-specific handling, and remove redundant test coverage evaluations.

…t usage of `std::shared_ptr`, simplify stream data management, and enforce `final` specifier.

… `StreamDataProvider` management.

Replace `getParsedOffset()` with the new `offset()` method across `QPDFObjectHandle` and related classes for consistent offset handling. Simplify logic and remove redundant `getParsedOffset()` implementation.

…proved encapsulation.

Encapsulate linearization-related logic in `QPDF::Doc::Linearization`. Refactor methods, relocate implementations, and update all references accordingly to streamline and centralize linearization functionality.

Relocate `Pages` methods to `QPDF::Doc` for improved encapsulation of page-related logic. Adjust all references and methods to use the new placement.

Relocate `Objects` to `QPDF::Doc` for improved encapsulation of object-related logic. Adjust all relevant methods and references to use the new placement.

Add `QPDF::Doc` as an inner class to manage document-level functionality. Update memory management in `QPDF::Members` to include `Doc` and ensure proper initialization. Add `QPDF::doc()` method for internal access. Refactor constructors accordingly.

…ance error and warning handling within `BaseHandle` and `QPDF`, highlighting that the error condition is not covered in CI testing without generating codecov noise.

…emove redundant `QTC::TC` calls.

…ity, and replace deprecated API usage.

…std::string_view`, improving performance and code clarity.