add:module:user:repository:checkUserEmailAndUsernameAvailabillity | add repository for check username and email availabillity

src/helpers/http/jwt/decode/index.ts

@@ -1,14 +1,16 @@
 import jwt from "jsonwebtoken";
+import { JWTSessionPayload } from "../../../../modules/auth/auth.types";
+import { AppError } from "../../../error/instances/app";
 
 export const jwtDecode = (payload: string) => {
   // return payload;
-  if (!payload) throw "JWT decode payload not found";
+  if (!payload) throw new AppError(401, "Unauthorized");
   const JWTKey = process.env.JWT_SECRET!;
 
   try {
     const decodedPayload = jwt.verify(payload, JWTKey);
-    return decodedPayload;
+    return decodedPayload as JWTSessionPayload;
   } catch (error) {
-    throw "JWT expired or not valid";
+    throw new AppError(401, "Invalid or expired token");
   }
 };