The event form's and the .ics import screen's calendar pickers list event
targets only, so a calendar that is switched off, read-only or managed is
simply absent — which reads as a missing calendar rather than an excluded
one. Both pickers now end in a "Missing a calendar?" row that names the
possible reasons and opens Settings → Calendars, where the row labels added
in the previous commit say which one applies.
Keeping the excluded calendars out of the picker stays deliberate: with a
handful of read-only subscriptions they would crowd out the calendars you
can actually pick, every single time you choose one.
The manager overlay moves to the end of the host's overlay stack so it
covers every surface that can now open it — Settings as before, plus both
event forms and the import picker. Coming back leaves the caller standing
exactly as it was, with its calendar list already refreshed: switching a
calendar on writes VISIBLE, the provider notifies, the flow re-queries.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Jean-Luc Makiola
5b64110be6