refactor: serve static files from a dedicated directory

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "calendar-merger",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "calendar-merger",
-      "version": "1.0.0",
+      "version": "1.1.0",
       "license": "ISC",
       "dependencies": {
         "axios": "^1.7.7",

server.js

@@ -13,9 +13,8 @@ console.log(`Merged calendars directory: ${MERGED_CALENDARS_DIR} under ${process
 // Ensure the merged calendars directory exists
 fs.mkdirSync(MERGED_CALENDARS_DIR, { recursive: true });
 
-// Serve static files
-app.get('/script.js', (req, res) => res.sendFile('script.js', { root: '.' }));
-app.get('/', (req, res) => res.sendFile('index.html', { root: '.' }));
+// Serve static files from the 'public' directory
+app.use(express.static(path.join(process.cwd(), 'public')));
 
 // Utility to sanitize filenames
 const sanitizeFilename = (filename) => filename.replace(/[<>:"/\\|?* ]/g, '_');