fix(emacs): limit org-caldav to 30 days of past events

Prevents downloading years of historical calendar entries.

home/roles/emacs/doom/config.el

@@ -124,6 +124,9 @@
   ;; Backup file for entries before modification
   (setq org-caldav-backup-file (expand-file-name ".org-caldav/backup.org" org-directory))
 
+  ;; Limit past events to 30 days (avoids downloading years of history)
+  (setq org-caldav-days-in-past 30)
+
   ;; Sync behavior: bidirectional by default
   (setq org-caldav-sync-direction 'twoway)