#9974 refactor: Split virtualenv functionality into venv and package management components Pull request opened by edgarrmondragon Description Checklist • I have read the contribution guide Was generative AI tooling used to co-author this PR? • Yes (please specify the tool below) Related Issues • Closes #XXXX Summary by Sourcery Extract package management operations from virtual environment backends into dedicated package manager components and wire existing venv implementations to use them. Enhancements: • Introduce a generic PackageManager abstraction with pip- and uv-based implementations decoupled from virtual environment lifecycle management. • Update VirtualenvBackend and UvBackend to delegate install, uninstall, and list operations to their respective package manager instances for clearer separation of concerns. • Refine virtual environment backend interfaces by explicitly defining venv creation separately from package management behavior. meltano/meltano