issue #37

- 기능 구현 1차 완료(동작 확인 필요)

src/util/Validator.ts

@@ -1,7 +1,22 @@
 export class Validator {
   static isEmail = (value: any) => {
-  if (typeof value !== 'string') return false;
-  const email = value.trim();
-  return /^[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,}$/.test(email);
-};
+    if (typeof value !== 'string') return false;
+    const email = value.trim();
+    return /^[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,}$/.test(email);
+  };
+
+  static validatePasswordFormat = (password: string): boolean => {
+    if (password.length < 8) return false;
+
+    const alphabets = 'abcdefghijklmnopqrstuvwxyz';
+    const numbers = '0123456789';
+    const specials = '!@#$%^';
+
+    if (!alphabets.includes(password[0])) return false;
+
+    const hasNumber = [...numbers].some((char) => password.includes(char));
+    const hasSpecial = [...specials].some((char) => password.includes(char));
+
+    return hasNumber && hasSpecial;
+  }
 }