fix the forecast tuition

app/Database/Migrations/2026-05-30-000001_FinancialSystemLedgerCleanup.php

@@ -94,7 +94,9 @@ class FinancialSystemLedgerCleanup extends Migration
 
         $defaults = [
             'tuition_calculator_version' => 'old',
+            'youth_fee' => '200.00',
             'new_tuition_full_amount' => '370.00',
+            'new_tuition_youth_amount' => '200.00',
             'new_tuition_second_student_discount' => '50.00',
             'new_tuition_third_student_discount' => '50.00',
             'new_tuition_fourth_plus_discount' => '100.00',

app/Database/Migrations/2026-06-06-000001_UpdateYouthTuitionDefaults.php

@@ -0,0 +1,61 @@
+<?php
+
+namespace App\Database\Migrations;
+
+use CodeIgniter\Database\Migration;
+
+class UpdateYouthTuitionDefaults extends Migration
+{
+    public function up()
+    {
+        if (!$this->db->tableExists('configuration')) {
+            return;
+        }
+
+        $this->upsertConfig('youth_fee', '200.00', ['180', '180.00']);
+        $this->upsertConfig('new_tuition_youth_amount', '200.00', ['180', '180.00']);
+    }
+
+    public function down()
+    {
+        if (!$this->db->tableExists('configuration')) {
+            return;
+        }
+
+        $this->rollbackConfig('youth_fee', '180.00');
+        $this->rollbackConfig('new_tuition_youth_amount', '180.00');
+    }
+
+    protected function upsertConfig(string $key, string $value, array $legacyValues = []): void
+    {
+        $row = $this->db->table('configuration')
+            ->select('id, config_value')
+            ->where('config_key', $key)
+            ->orderBy('id', 'ASC')
+            ->get()
+            ->getRowArray();
+
+        if (!$row) {
+            $this->db->table('configuration')->insert([
+                'config_key' => $key,
+                'config_value' => $value,
+            ]);
+            return;
+        }
+
+        $current = trim((string) ($row['config_value'] ?? ''));
+        if ($current === '' || in_array($current, $legacyValues, true)) {
+            $this->db->table('configuration')
+                ->where('config_key', $key)
+                ->update(['config_value' => $value]);
+        }
+    }
+
+    protected function rollbackConfig(string $key, string $value): void
+    {
+        $this->db->table('configuration')
+            ->where('config_key', $key)
+            ->where('config_value', '200.00')
+            ->update(['config_value' => $value]);
+    }
+}