fix(org-modern): vector star + GitHub recipe for latest version; feat: fullscreen on start

- packages.el: recipe pointing to minad/org-modern GitHub main
  (bypasses Doom lockfile pin, gets version with org-indent-mode star fix)
- config.el: org-modern-star as vector ["◉"] + org-modern-hide-stars
  (vector format works reliably; list format had activation timing issues)
- config.el: initial/default-frame-alist fullscreen maximized
  (Emacs starts maximized on every launch)

config.el

@@ -23,6 +23,10 @@
 
 (setq display-line-numbers-type t)
 
+;; Start Emacs maximized on every launch (macOS: fills screen, keeps menu bar)
+(add-to-list 'initial-frame-alist '(fullscreen . maximized))
+(add-to-list 'default-frame-alist '(fullscreen . maximized))
+
 
 ;;; ============================================================
 ;;; UI & DISPLAY
@@ -1142,15 +1146,17 @@ Otherwise: runs interactive ement-connect, then opens rooms after sync."
 ;;; ============================================================
 
 ;;; Org-modern -- modern visual style for org-mode
-;; :custom sets vars before first activation (unlike :config which runs after).
+;; Uses vector star format ["◉"] which works reliably across font/version variations.
+;; org-modern-hide-stars: replace non-final stars with · (avoids multi-star clutter).
 ;; org-modern-table nil: avoids LaTeX export conflicts.
 (use-package! org-modern
   :hook (org-mode . org-modern-mode)
   :hook (org-agenda-finalize . org-modern-agenda)
-  :custom
-  (org-modern-star '("◉" "○" "✸" "✿"))
-  (org-modern-table nil)
-  (org-modern-checkbox t))
+  :config
+  (setq org-modern-star ["◉"]
+        org-modern-hide-stars "·"
+        org-modern-table nil
+        org-modern-checkbox t))
 
 
 ;;; ============================================================