Füge Spalte product_quality zur Tabelle stock hinzu und erstelle Migration für weather_type_id in production

backend/migrations/20251216000100-add-product-quality-to-stock.cjs

@@ -0,0 +1,17 @@
+"use strict";
+
+module.exports = {
+  async up(queryInterface, Sequelize) {
+    await queryInterface.sequelize.query(`
+      ALTER TABLE IF EXISTS falukant_data.stock
+      ADD COLUMN IF NOT EXISTS product_quality integer;
+    `);
+  },
+
+  async down(queryInterface, Sequelize) {
+    await queryInterface.sequelize.query(`
+      ALTER TABLE IF EXISTS falukant_data.stock
+      DROP COLUMN IF EXISTS product_quality;
+    `);
+  }
+};