Guardar cambios consolidar grupos docentes y clave de grupo

database/migrations/2026_03_13_171243_create_grupos_table.php

@@ -11,6 +11,7 @@ return new class extends Migration
         Schema::create('grupos', function (Blueprint $table) {
             $table->id();
             $table->unsignedBigInteger('plan_id');
+            $table->string('clave')->unique();
             $table->unsignedBigInteger('ciclo');
             $table->unsignedBigInteger('nivel');
             $table->unsignedBigInteger('plantel');