v0.5.5

Fixed

• Fix iCloud Calendar sync failing with FOREIGN KEY constraint error — created_by was hardcoded to user ID 1 instead of resolving dynamically (fixes #4)
• Sync all iCloud calendars instead of only the first one — previously only a single calendar was imported, ignoring Family, subscribed, and other calendars
• Add missing cfgDel helper function used by clearCredentials — disconnecting Apple Calendar would crash
• Skip unreachable or broken calendars gracefully instead of aborting the entire sync