refactor: mv types.js index.js (and rexport request.js)

index.js

@@ -0,0 +1,34 @@
+'use strict';
+
+module.exports = require('./request.js');
+
+/**
+ * @callback Request
+ * @param {RequestOptions} opts
+ * @returns {Response}
+ */
+
+/**
+ * @typedef {Object} RequestOptions
+ * @prop {any} [opts.body]
+ * @prop {Object.<String,any>} [opts.form]
+ * @prop {Headers} [opts.headers]
+ * @prop {String} [opts.method]
+ * @prop {Boolean | any} [opts.json]
+ * @prop {String} opts.url
+ */
+
+/**
+ * @typedef {Object} Response
+ * @prop {any} body
+ * @prop {Headers} headers
+ * @prop {Boolean} ok
+ * @prop {any} [response] - TODO (browser only)
+ * @prop {any} [request] - TODO
+ * @prop {String} status
+ * @prop {Number} statusCode
+ */
+
+/**
+ * @typedef {Object.<String,String|Array<String>>} Headers
+ */