SwiftLint type_body_length warning in EventKitStore.swift

[philoserf]

Description

RemindersStore actor body in EventKitStore.swift spans 259 lines, exceeding SwiftLint's 250-line type_body_length warning threshold.

Root Cause

ReminderItem is constructed inline in 3 methods (createReminder, updateReminder, completeReminders) despite an existing item(from:) helper that does the same thing but is never called. This adds ~30 unnecessary lines to the actor body.

Fix

Replace the 3 inline ReminderItem(...) constructions with calls to item(from:).

[philoserf]

This was existing lint noticed upon first examination of the source.