Picking up an old PR from @curved-angle-80449 to improve our handling of marketplaces. It's in good shape, just splitting up the functionality to make it easier to review First few PRs in the stack could use some feedback: • https://github.com/OpenHands/software-agent-sdk/pull/3824 • https://github.com/OpenHands/software-agent-sdk/pull/3825 • https://github.com/OpenHands/software-agent-sdk/pull/3826

Thanks for this @wide-doctor-37830! And thanks @modern-fireman-99755 for review feedback!