feat: add gemini-3.flash-preview and disable ewal theme

- ai: include gemini-3.flash-preview in model list
- theme: comment out ewal configuration and default to doom-one

theme.el

@@ -1,22 +1,22 @@
 ;;; theme.el -*- lexical-binding: t; -*-
 
-;; 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"))
-
-(use-package! ewal-doom-themes
-  :config
-  ;; (load-theme 'ewal-doom-one t)
-  ;;(enable-theme 'ewal-doom-one)
-  )
-
-;; Set the theme to ewal-doom-one
-;; (setq doom-theme 'ewal-doom-one)
-(load-theme 'doom-one t)
+;; Default Doom Theme
 (setq doom-theme 'doom-one)
+;; (load-theme doom-theme t) ; Usually handled by Doom automatically, but kept for explicitness if needed
+
+;; --- Ewal Configuration (Disabled) ---
+;; To enable, uncomment the blocks below and optionally set doom-theme to 'ewal-doom-one
+;; (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"))
+
+;; (use-package! ewal-doom-themes
+;;   :config
+;;   ;; (load-theme 'ewal-doom-one t)
+;;   ;; (enable-theme 'ewal-doom-one)
+;;   )
 
 ;; Previous base16 config (commented out)
 ;; (setq base16-distinct-fringe-background t