Migriere Persistenz von SQLite zu PostgreSQL (postgresql.lan:5432/essens)

- Dockerfile: pdo_pgsql installieren
- migrations: Postgres-Dialekt (SERIAL, TIMESTAMP(0), TEXT)
- compose/.env(.dist): postgresql://DATABASE_URL (Passwort via .env.local)
- bin/migrate-sqlite-to-pg.sh: einmaliger Datenimport SQLite->PG

migrations/Version20260913204759.php

@@ -8,26 +8,24 @@ use Doctrine\DBAL\Schema\Schema;
 use Doctrine\Migrations\AbstractMigration;
 
 /**
- * Auto-generated Migration: Please modify to your needs!
+ * Postgres-Port der ursprünglichen SQLite-Migration (2026-09-13).
  */
 final class Version20260913204759 extends AbstractMigration
 {
     public function getDescription(): string
     {
-        return '';
+        return 'essens_user (Postgres)';
     }
 
     public function up(Schema $schema): void
     {
-        // this up() migration is auto-generated, please modify it to your needs
-        $this->addSql('CREATE TABLE essens_user (id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, username VARCHAR(255) NOT NULL, email VARCHAR(255) NOT NULL, kc_sub VARCHAR(64) NOT NULL, created_am DATETIME NOT NULL, updated_am DATETIME NOT NULL)');
+        $this->addSql('CREATE TABLE essens_user (id SERIAL PRIMARY KEY, username VARCHAR(255) NOT NULL, email VARCHAR(255) NOT NULL, kc_sub VARCHAR(64) NOT NULL, created_am TIMESTAMP(0) WITHOUT TIME ZONE NOT NULL, updated_am TIMESTAMP(0) WITHOUT TIME ZONE NOT NULL)');
         $this->addSql('CREATE UNIQUE INDEX uniq_email ON essens_user (email)');
         $this->addSql('CREATE UNIQUE INDEX uniq_kc_sub ON essens_user (kc_sub)');
     }
 
     public function down(Schema $schema): void
     {
-        // this down() migration is auto-generated, please modify it to your needs
         $this->addSql('DROP TABLE essens_user');
     }
 }