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

.gitignore

@@ -7,4 +7,6 @@
 !lisp/**/
 !lisp/**/*.el
 
+lisp/init-proxy.el
+
 !.gitignore