修改只有一次验证机会的bug

backend/app/core/verification/email/verificationService.py

@@ -62,15 +62,16 @@ class EmailVerificationService:
     
     def verify_code(self,email: str, code: str, purpose: VerificationPurpose):
         email = email.lower()
+        code_hash = hash_verification_code(code)
 
-        stored_hash: Optional[str] = self.repo.consume_code(email, purpose)
+        stored = self.repo.compare_and_consume(email, purpose, code_hash)
 
-        if not stored_hash:
-            raise CodeExpiredError("Code expired or not found")
-        
-        if stored_hash != hash_verification_code(code):
+        if stored == False:
             raise CodeInvalidError("Invalid code")
 
+        if not stored:
+            raise CodeExpiredError("Code expired or not found")
+        
         return True
 
 @lru_cache