Update Claude and theme configuration.

Configure claude-code/claudemacs runtime settings, switch theme setup to ewal-doom-one, and remove obsolete GPTEL setup docs.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

theme.el

@@ -1,13 +1,21 @@
 ;;; theme.el -*- lexical-binding: t; -*-
 
-;; Configure base16-theme
-;; https://github.com/tinted-theming/base16-emacs
+;; Configure ewal
+(use-package! ewal
+  :init
+  (setq ewal-use-built-in-always-p nil
+        ewal-use-built-in-on-failure-p t
+        ewal-built-in-palette "sexy-material"))
 
-;; Set customization variables before loading the theme
-;; (Optional: adjust these as needed)
-(setq base16-distinct-fringe-background t
-      base16-highlight-mode-line 'box)
+(use-package! ewal-doom-themes
+  :config
+  (load-theme 'ewal-doom-one t)
+  (enable-theme 'ewal-doom-one))
 
-;; Set the theme to base16-default-dark
-;; This overrides any theme set in core.el
-(setq doom-theme 'base16-default-dark)
+;; Set the theme to ewal-doom-one
+(setq doom-theme 'ewal-doom-one)
+
+;; Previous base16 config (commented out)
+;; (setq base16-distinct-fringe-background t
+;;       base16-highlight-mode-line 'box)
+;; (setq doom-theme 'base16-default-dark)