Freundschaftsspiele korrigiert

backend/migrations/20260605_create_club_venue.sql

@@ -0,0 +1,15 @@
+CREATE TABLE IF NOT EXISTS `club_venue` (
+  `id` INT NOT NULL AUTO_INCREMENT,
+  `club_id` INT NOT NULL,
+  `name` VARCHAR(255) NOT NULL,
+  `address` VARCHAR(255) NULL,
+  `zip` VARCHAR(32) NULL,
+  `city` VARCHAR(255) NULL,
+  `sort_order` INT NOT NULL DEFAULT 0,
+  `created_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  `updated_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+  PRIMARY KEY (`id`),
+  KEY `idx_club_venue_club_sort` (`club_id`, `sort_order`),
+  KEY `idx_club_venue_club_name` (`club_id`, `name`),
+  CONSTRAINT `fk_club_venue_club` FOREIGN KEY (`club_id`) REFERENCES `clubs` (`id`) ON DELETE CASCADE
+);