Undelete: deleted files, calendar events, contacts and Sieve scripts are kept and restored where they were (UD-1, UD-8 to UD-11)

Files, events and contacts are noted when deleted for good and archived by
the unindex task when retention is on; Sieve scripts are archived at
deletion. A restore goes back to its folder, calendar or address book if it
still exists, takes a free " (restored)" name, comes back inactive for
scripts, and is refused over quota with the item left archived.
Acceptance tests 6, 8 and 12.

crates/groupware/src/calendar/storage.rs

@@ -462,6 +462,15 @@ impl DestroyArchive<Archive<&ArchivedCalendarEvent>> {
         batch: &mut BatchBuilder,
     ) -> trc::Result<()> {
         let event = self.0;
+        // inbuxa: UD-1: noted for undelete
+        crate::inbuxa::note_event(
+            batch,
+            account_id,
+            document_id,
+            &event
+                .deserialize::<CalendarEvent>()
+                .caused_by(trc::location!())?,
+        )?;
         // Delete event
         batch
             .with_account_id(account_id)