[Feature Request] DOSBOX Pure Core

**Is your feature request related to a problem? Please describe.**
Supports emulation of MS-DOS with DOSBox Pure core.

**Describe the solution you'd like**
Zipped files with dosbox.conf inside the zip could be played with Pure. Since emscripten exist web emulation is also possible.

**Describe alternatives you've considered**
N/A

**Additional context**
[N/A](https://github.com/dreamlayers/em-dosbox)

No files, tests, or entry points are named in the issue. Start by locating the emulator-core integration and archive handling in the repository, then determine the scope required for DOSBox Pure support, including zipped files with dosbox.conf and possible web emulation.

Written by the indexing model from the issue text.