feat: add hashing and validation utility functions

utils/hashing.ts

@@ -0,0 +1,7 @@
+export async function hashPassword(password: string) {
+  const encodedPass = new TextEncoder().encode(password);
+  const hashBuffer = await crypto.subtle.digest("SHA-384", encodedPass);
+  const hashArray = Array.from(new Uint8Array(hashBuffer));
+  const hashedPass = hashArray.map((b) => b.toString(16).padStart(2, "0")).join("");
+  return hashedPass;
+}

utils/validation.ts

@@ -0,0 +1,3 @@
+export function validateUsername(username: string) {
+  return /^[\w.-]+$/.test(username);
+}