Replace trait constants and array_is_list usage with equivalent PHP 8.0 constructs. Add strict list/expiry regressions and make isolated reflection tests PHP 8.0 compatible. No control activation, threshold or configuration change.
Merge the V4 development history with current manager, SDL and setpoint fixes. Retain guarded trial behavior and consolidate controls in Prognose / Forecast. Exclude the unverified accounting-evidence change; no runtime deployment or new dispatch permission.
Validated: 357 PHPUnit tests / 1758 assertions, 150 PHP syntax checks, 310 backend tests, 16 portal tests and isolated UI/receiver checks. develop and beta publication explicitly approved by Daniel Haefliger.
dh