feat: Support running under subpath (#1451)

server/api/controllers/index.js

@@ -0,0 +1,19 @@
+/*!
+ * Copyright (c) 2025 PLANKA Software GmbH
+ * Licensed under the Fair Use License: https://github.com/plankanban/planka/blob/master/LICENSE.md
+ */
+
+module.exports = {
+  exits: {
+    success: {
+      responseType: 'view',
+      viewTemplatePath: 'index',
+    },
+  },
+
+  fn() {
+    return {
+      basePath: sails.config.custom.baseUrlPath,
+    };
+  },
+};