Add Dockerfile + usage notes

[nuclearpidgeon]

I've raised this as a draft PR because there's still some final fiddling to do with the build directory paths involved with my approach of bind-mounting the code of the app into the container, but also keeping the GDB build work inside the container. I think if the app can have the build dir passed as an env var for finding the relevant built files that will make it all work - relevant lines below:

debug-visualizer/debugger/mi/communicator.py

Line 36 in 7d3b936

GDB_PATH = util.get_root_path("build/gdb-build/gdb")

debug-visualizer/debugger/mi/mi_debugger.py

Line 38 in 7d3b936

shlib_path = util.get_root_path("build/debugger/liballochook.so")

Screenshot proof it works!

[nuclearpidgeon]

Ah and another thing before I forget... the python code can do with this added at the start of execution:

import gi
gi.require_version('Gtk', '3.0')

And possibly also:

gi.require_version('Gdk', '3.0')
gi.require_version('GtkSource', '3.0')

This is more relevant when trying to run on a more modern OS though, where there's GTK4 and GDK4 available that can end up taking precedence.

[Kobzol]

Yay! Thanks for keeping my bachelor thesis buildable even in 2026 😁