feat: groups price calculator admin crud, booking/offer flow and api

migrations/Version20260707094812.php

@@ -0,0 +1,31 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+/**
+ * Auto-generated Migration: Please modify to your needs!
+ */
+final class Version20260707094812 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return 'Drop children_count (4–5 J.) and rename adolescents_count to children_count (now 4–X J.)';
+    }
+
+    public function up(Schema $schema): void
+    {
+        $this->addSql('ALTER TABLE accommodation_booking DROP COLUMN children_count');
+        $this->addSql('ALTER TABLE accommodation_booking RENAME COLUMN adolescents_count TO children_count');
+    }
+
+    public function down(Schema $schema): void
+    {
+        $this->addSql('ALTER TABLE accommodation_booking RENAME COLUMN children_count TO adolescents_count');
+        $this->addSql('ALTER TABLE accommodation_booking ADD COLUMN children_count INT NOT NULL DEFAULT 0');
+    }
+}