Moved metadata route and added static files (robots.txt)

services/metaService.js

@@ -1,3 +1,7 @@
+const fs = require("node:fs")
+const path = require("node:path")
+const { DefaultError } = require("../errors/errors")
+
 function getServerMetadata() {
     return {
         name: process.env["INSTANCE_NAME"],
@@ -5,6 +9,15 @@ function getServerMetadata() {
     }
 }
 
+function serveStaticFile(filePath) {
+    const finalFilePath = path.join(process.cwd(), "data", "static", filePath)
+    if (fs.existsSync(finalFilePath)) {
+        return finalFilePath
+    }
+    throw new DefaultError(404, "File not found", "File moved/deleted or don't exists", "NotFoundException")
+}
+
 module.exports = {
+    serveStaticFile,
     getServerMetadata
 }