Fix: training_programs query uses status column not is_active

The transfer wizard was querying is_active which doesn't exist on
training_programs table — the column is status with CHECK constraint.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/Livewire/Enrollments/TransferParticipantWizard.php

@@ -280,7 +280,7 @@ public function render()
         $availablePrograms = collect();
         $availableGroups = collect();
         if ($this->selectedEnrollment && $this->currentStep >= 2) {
-            $availablePrograms = TrainingProgram::where('is_active', true)
+            $availablePrograms = TrainingProgram::where('status', 'active')
                 ->orderBy('name_ar')
                 ->get();