feat(database/repositories/user_repository.py): A new login verification method has been added

database/repositories/user_repository.py

@@ -114,6 +114,15 @@ class UserRepository:
                     return User(*row)
                 return None
 
+    def is_valid_authenticate(self, email: str, password_hash: str) -> bool:
+        with get_connection() as conn:
+            with conn.cursor() as cur:
+                cur.execute("""
+                    SELECT 1 FROM users 
+                    WHERE email = %s AND password_hash = %s
+                """, (email, password_hash))
+                return cur.fetchone() is not None
+
     def user_exists(self, email: str) -> bool:
         with get_connection() as conn:
             with conn.cursor() as cur: