Add comments and stuff

server.js

@@ -2614,7 +2614,12 @@ app.post('/uploaduseravatar', urlencodedParser, async (request, response) => {
 });
 
 
-
+/**
+ * Ensure the directory for the provided file path exists.
+ * If not, it will recursively create the directory.
+ * 
+ * @param {string} filePath - The full path of the file for which the directory should be ensured.
+ */
 function ensureDirectoryExistence(filePath) {
     const dirname = path.dirname(filePath);
     if (fs.existsSync(dirname)) {
@@ -2624,6 +2629,17 @@ function ensureDirectoryExistence(filePath) {
     fs.mkdirSync(dirname);
 }
 
+/**
+ * Endpoint to handle image uploads.
+ * The image should be provided in the request body in base64 format.
+ * Optionally, a character name can be provided to save the image in a sub-folder.
+ * 
+ * @route POST /uploadimage
+ * @param {Object} request.body - The request payload.
+ * @param {string} request.body.image - The base64 encoded image data.
+ * @param {string} [request.body.ch_name] - Optional character name to determine the sub-directory.
+ * @returns {Object} response - The response object containing the path where the image was saved.
+ */
 app.post('/uploadimage', jsonParser, async (request, response) => {
     // Check for image data
     if (!request.body || !request.body.image) {