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>

packages.el

@@ -51,9 +51,15 @@
   :recipe (:host github :repo "stevemolitor/claude-code.el" :branch "main" :depth 1
            :files ("*.el" (:exclude "images/*"))))
 
+(package! claudemacs
+  :recipe (:host github :repo "cpoile/claudemacs"))
+
 ;; Usage metrics and key tracking
 (package! keyfreq)
 (package! command-log-mode)
 
 ;; Theme
 (package! base16-theme)
+(package! ewal)
+(package! ewal-doom-themes
+  :recipe (:host github :repo "cyruseuros/ewal" :files ("doom-themes/*.el")))