Config: streamline config structure and reorganize modules

- Remove init-workspace.el and redundant UI/font/autothemer setup
- Add init-prog.el for programming language configs (treesit, lua, scheme, etc.)
- Defer org-refile loading via org-mode hook
- Adjust load order in init.el, add init-proxy
- Fix indentation and formatting issues

lisp/init-completion.el

@@ -107,31 +107,6 @@
   (advice-add 'eglot-completion-at-point :around #'cape-wrap-nonexclusive)
   (advice-add 'pcomplete-completions-at-point :around #'cape-wrap-nonexclusive))
 
-;; tree-sitter
-(use-package treesit-auto
-  :demand t
-  :config
-  (setq treesit-auto-install 'prompt)
-  (global-treesit-auto-mode)
-  (setq treesit-font-lock-level 4))
-
-;; lua
-(use-package lua-ts-mode
-  :mode ("\\.lua\\'" . lua-ts-mode)
-  :config
-  (add-to-list 'auto-mode-alist '("\\.lua\\'" . lua-ts-mode)))
-
-;; ahk
-(use-package ahk-mode)
-
-;; scheme
-(use-package geiser
-  :config
-  (with-eval-after-load 'geiser
-  (setq geiser-default-implementation 'guile)))
-
-(use-package geiser-guile)
-
 (provide 'init-completion)
 
 ;;; init-completion.el ends here