feat: add two- and four-weekly series and drop the weekday picker

migrations/Version20260914090000.php

@@ -0,0 +1,35 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+final class Version20260914090000 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return 'Drops booking_series.weekdays -- a series now strides from its start date';
+    }
+
+    public function up(Schema $schema): void
+    {
+        // A recurrence rule is only a step size now (1, 7, 14 or 28 days), and every whole-week
+        // stride holds the weekday of the start date by construction. The column had nothing
+        // left to say. Existing rows need no data migration: their start_date already carries
+        // the weekday, and the stride reproduces it.
+        $this->addSql('ALTER TABLE booking_series DROP weekdays');
+    }
+
+    public function down(Schema $schema): void
+    {
+        // Lossy on purpose, and not fixable: which weekdays a multi-day weekly series used to
+        // run on is gone once the column is dropped. Every restored row comes back as "[]",
+        // which the old code read as "every calendar day" for DAILY and "no days at all" for
+        // WEEKLY -- so a rolled-back weekly series would materialise nothing.
+        $this->addSql("ALTER TABLE booking_series ADD weekdays JSON NOT NULL DEFAULT '[]'");
+        $this->addSql('ALTER TABLE booking_series ALTER weekdays DROP DEFAULT');
+    }
+}