refactor: Move Emacs config from system/ to projects/dotemacs/

- Delete deprecated system/ configuration files
- Update projects/dotemacs/modules/ with reorganized config
- Add .opencode/ directory for agent state
- Clean up attachments and unused documentation files

projects/dotemacs/modules/emacs-ui.org

@@ -1,59 +1,32 @@
 #+TITLE: Emacs UI Configuration
-#+property: header-args :tangle ~/.emacs.d/modules/ui.el
+#+PROPERTY: header-args :tangle yes
 
 * Appearance
+
+Basic UI settings for a cleaner look.
+
 #+begin_src elisp
-  (defvar org-pretty-entities t) ; Improve org mode looks
-  (defvar org-hide-emphasis-markers t) ; Hide emphasis markup
-  (defvar org-num-mode nil)
-  (defvar org-startup-folded 'shw2levels)
-  (defvar org-startup-indented t) ; Indent org heirarchy
-  (defvar org-adapt-indentation t)
-  (defvar org-hide-leading-stars t) ; Minimal Outline
-  (defvar org-odd-levels-only nil)
+  (when (fboundp 'tool-bar-mode) (tool-bar-mode -1))
+  (when (fboundp 'menu-bar-mode) (menu-bar-mode -1))
+  (when (fboundp 'scroll-bar-mode) (scroll-bar-mode -1))
+
+  (setq inhibit-startup-screen t)
+  (setq initial-scratch-message nil)
 #+end_src
 
-* Org-modern
+* Fonts
+
+#+begin_src elisp
+  (set-face-attribute 'default nil :family "sans-serif" :height 120)
+  (set-face-attribute 'variable-pitch nil :family "sans-serif")
+#+end_src
+
+* Org-modern (UI elements)
 #+begin_src elisp
   (use-package org-modern
     :ensure t
     :config
-    ;; Choose some fonts
-    (set-face-attribute 'default nil :family "sans-serif")
-    (set-face-attribute 'variable-pitch nil :family "sans-serif")
     (set-face-attribute 'org-modern-symbol nil :family "Iosevka")
-
-    ;; Edit settings
-    (defvar org-auto-align-tags nil)
-    (defvar org-tags-column 0)
-    (defvar org-catch-invisible-edits 'show-and-error)
-    (defvar org-special-ctrl-a/e t)
-    (defvar org-insert-heading-respect-content t)
-
-     ;; Org styling, hide markup etc.
-     (defvar org-hide-emphasis-markers t)
-     (defvar org-pretty-entities t)
-
-     ;; Agenda styling
-     (defvar org-agenda-tags-column 0)
-     (defvar org-agenda-block-separator ?─)
-     (defvar org-agenda-time-grid
-       '((daily today require-timed)
-         (800 1000 1200 1400 1600 1800 2000)
-         " ┄┄┄┄┄ " "┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄"))
-     (defvar org-agenda-current-time-string
-       "◀── now ─────────────────────────────────────────────────")
-
-    ;; Ellipsis styling
-     (defvar org-ellipsis "…")
-     (set-face-attribute 'org-ellipsis nil :inherit 'default :box nil)
-    
-     (global-org-modern-mode)
+    (global-org-modern-mode)
     )
 #+end_src
-
-* Syntax Highlighting
-#+begin_src elisp
-  (setq org-src-fontify-natively t)
-  (setq org-src-tab-acts-natively t)
-#+end_src