Folder copies into ~/.vscode/extensions no longer load in modern VS Code;
make_vsix.sh packages the extension (bash + python3 only) and the README
installs it with `code --install-extension`.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
doc/edit/ now holds a shared Python implementation of the language's
structural layer (klammertext_edit.py) and a dependency-free language
server (klammertext_ls.py), with integrations for Emacs, Sublime Text,
Vim, and Visual Studio Code. The editor test suite in tst/ covers the
core's API and CLI, the language server protocol, the VS Code
extension, headless Vim, and Emacs byte-equality.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
