[6.x] Addon settings' fields' default can't parse antlers

[edalzell]

Bug description

I have a addon setting timezone:

I was hoping that the default could parse antlers and the config, but the above doesn't work:

How to reproduce

1. have an addon setting field w/ a default w/ antlers:

Logs

Environment

Environment
Application Name: Statamic
Laravel Version: 12.35.1
PHP Version: 8.3.26
Composer Version: 2.8.11
Environment: local
Debug Mode: ENABLED
URL: events.test
Maintenance Mode: OFF
Timezone: UTC
Locale: en

Cache
Config: NOT CACHED
Events: NOT CACHED
Routes: NOT CACHED
Views: CACHED

Drivers
Broadcasting: log
Cache: file
Database: sqlite
Logs: stack / single
Mail: log
Queue: sync
Session: file

Storage
public/storage: NOT LINKED

Statamic
Addons: 1
Sites: 1
Stache Watcher: Enabled (auto)
Static Caching: Disabled
Version: 6.0.0-alpha.14 Solo

Statamic Addons
transformstudios/events: dev-use-settings

Installation

Fresh statamic/statamic site via CLI

Additional details

No response

[duncanmcclean]

It won't parse the Antlers in the CP (because it opens a can of worms around what happens when you update the value, do we update the config/env/etc).

However, it will parse the Antlers when you attempt to get the value from the settings. Eg: $settings->get('timezone')

[edalzell]

It won't parse the Antlers in the CP (because it opens a can of worms around what happens when you update the value, do we update the config/env/etc).

If it's antlers it should be read-only

[duncanmcclean]

Then, if you wanted to change the value to something else, you wouldn't be able to without manually editing the YAML file or the database.

It's handled the same way as sites - the env/config variables show in the CP, but they get evaluated everywhere else.