Activate pgcrypto extension for digest() function in database initialization and migration scripts

backend/migrations/add_trigger_for_hashedId.cjs

@@ -2,6 +2,11 @@
 
 module.exports = {
     up: async (queryInterface, Sequelize) => {
+        // Aktiviere die pgcrypto Erweiterung, die die digest() Funktion bereitstellt
+        await queryInterface.sequelize.query(`
+            CREATE EXTENSION IF NOT EXISTS pgcrypto;
+        `);
+
         await queryInterface.sequelize.query(`
             CREATE OR REPLACE FUNCTION community.update_hashed_id() RETURNS TRIGGER AS $$
             BEGIN