[#72873] Template drop-down is not showing if user starts meeting creation from global meeting index

[mrmir]

Ticket

https://community.openproject.org/work_packages/72873

What approach did you choose and why?

• Show the template selector from the global create form when the user can access at least one template
• The template selector is refreshed based on the project selected
• templates_visible_globally is the new method that enables this check, and is similar to templates_visible_in_project, but for all projects that a user has permissions for
• Instead of showing/hiding the template selector depending on the project selected, it is instead enabled/disabled to prevent the dialog from changing sizes

Merge checklist

• Added/updated tests
• Added/updated documentation in Lookbook (patterns, previews, etc)
• Tested major browsers (Chrome, Firefox, Edge, ...)

[oliverguenther]

I get an internal error when:

1. Open global create dialog
2. Fill in project that has template
3. Fill in template
4. Leave title empty

Click save.

The stack trace is

F, [2026-03-26T16:06:30.635866 #41665] FATAL -- : [fab9c796-4024-4c45-9609-944fe9d4c515]
[fab9c796-4024-4c45-9609-944fe9d4c515] NoMethodError (undefined method 'id' for nil):
[fab9c796-4024-4c45-9609-944fe9d4c515]
[fab9c796-4024-4c45-9609-944fe9d4c515] modules/meeting/app/models/meeting.rb:154:in 'Meeting.templates_visible_in_project'
[fab9c796-4024-4c45-9609-944fe9d4c515] modules/meeting/app/controllers/meetings_controller.rb:597:in 'MeetingsController#find_copy_from_meeting'

It seems that this is called with a @project nil value in the error case. Rest of the behavior LGTM.