Add lang/python module with uv/ruff/pylsp, ANSI colors, and LSP auto-install

- Add lang/python.el: project detection, ruff format-on-save, C-c C-v -> ruff check,
  optional pylsp with auto-install via uv (asks once per session)
- Fix pylsp resolution to check .venv, uv tool path, and PATH
- Disable legacy pyls client to avoid spurious warnings
- Add ANSI color support in compilation buffers (editor.el)
- Remove python-mode/python-ts-mode from global lsp-deferred hooks (lsp.el)
- Add ruff, ty, uv packages to desktop group_vars

dotfiles/desktop/.emacs.d/lisp/core/editor.el

@@ -1,5 +1,7 @@
 ;;; core-editor
 
+(require 'ansi-color)
+
 (setq standard-indent 4)
 (setq tab-stop-list nil)
 (setq indent-tabs-mode nil)
@@ -9,6 +11,8 @@
 (prefer-coding-system 'utf-8-unix)
 (setq custom-file (null-device))
 
+(add-hook 'compilation-filter-hook #'ansi-color-compilation-filter)
+
 (provide 'editor)
 
 ;;; editor.el ends here