1688-product-search

No strong indicators of malware or covert data exfiltration beyond legitimate OAuth token acquisition are present in this fragment. However, the code materially increases credential exposure risk by (1) printing the access token to stdout and (2) storing access/refresh tokens and app_key in plaintext JSON on disk without permission hardening or encryption. Treat the module as security-sensitive; remove token printing and protect cache storage if used in production/CI environments.