Fix(RAP-7/#20): CLI crashes on Linux

[DnA-IntRicate]

This PR fixes issue #20 where Raptor would crash at import-time when attempting to import winreg from core/environ.py on non-Windows machines.

Additionally, this PR moves the setup scripts to the new scripts/ folder and implements the new dev scripts which may be run from a terminal to setup the environment before beginning development. These dev scripts ensure that the uv cache is stored locally inside the repo folder - instead of on a different disk or in the home/appdata directories which could raise that annoying uv hardlinking error:

warning: Failed to hardlink files; falling back to full copy. This may lead to degraded performance.
         If the cache and target directories are on different filesystems, hardlinking may not be supported.
         If this is intentional, set `export UV_LINK_MODE=copy` or use `--link-mode=copy` to suppress this warning.

[DnA-IntRicate]

Reviewed.