feat: define clean architecture layers and ports

src/application/ports/storage-port.js

@@ -0,0 +1,9 @@
+/**
+ * @typedef {{
+ *   read(logicalName: string): { ok: true, value: unknown } | { ok: false, error: unknown },
+ *   write(logicalName: string, value: unknown): { ok: true } | { ok: false, error: unknown },
+ *   remove(logicalName: string): { ok: true } | { ok: false, error: unknown }
+ * }} StoragePort
+ */
+
+export {};