[soymgomez]

Summary

• with CACHET_BEACON=false, the scheduler logs an error every day:

  Scheduled command ['/usr/bin/php8.4' 'artisan' cachet:beacon] failed with exit code [1].

• cachet:beacon deliberately returns 1 when the beacon is disabled (covered by SendBeaconCommandTest), but the scheduled event runs regardless of the setting, and the scheduler treats a non-zero exit code as a failure
• only run the scheduled event when cachet.beacon is enabled, using ->when() like the demo mode seeders below it. The command and its exit code are unchanged, and the event is still registered, so registers the package schedules by default keeps passing
• add a test asserting that the beacon event's filters pass only when the beacon is enabled

Validation

• the new test fails on main for the disabled case and passes with the fix
• vendor/bin/pest: 1151 passed (4292 assertions)
• vendor/bin/pint --test: passed
• vendor/bin/phpstan analyse src/CachetCoreServiceProvider.php: no errors