Created the auth validation

src/routes/v1/validations/auth.ts

@@ -0,0 +1,10 @@
+import Joi from "joi";
+
+export const loginValidation = Joi.object({
+    username: Joi.string().min(3).max(15).alphanum().required(),
+    password: Joi.string().min(5).max(50).required()
+});
+
+export const tokenValidation = Joi.object({
+    token: Joi.string().hex().min(96).max(96).required()
+});