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/tools/lsp.el

@@ -8,8 +8,6 @@
     c-ts-mode
     c++-mode
     c++-ts-mode
-    python-mode
-    python-ts-mode
     sh-mode
     bash-ts-mode) . lsp-deferred)
   :config