v1.5.0

Added

• Calendar: one-time import of events from an .ics file or a shared calendar feed URL into editable local events, under Settings → Sync → Calendar → "Import calendar". Unlike an ICS subscription (which stays read-only and auto-synced), imported events become your own editable events and are not synced afterwards — the migration path when moving from another calendar. Recurring events are kept as a series (the recurrence rule is reduced to the supported daily/weekly/monthly/yearly subset), all-day and timed events are preserved, and re-importing the same feed skips events that were already imported. The URL path reuses the SSRF-protected fetch (10 MB / 15 s limits) used by subscriptions. (#437)