refactor: replace hardcoded API URLs with dynamic formatting using OPENAPI_HOST constant

Author: Rasic2

scripts/constant.py

@@ -1,2 +1,4 @@
-JOB_DETAIL_API = 'https://openapi.test.dp.tech/openapi/v1/sandbox/job'
-FILE_TOKEN_API = 'https://openapi.test.dp.tech/openapi/v1/sandbox/job/file/token'
+from agents.matmaster_agent.constant import OPENAPI_HOST
+
+JOB_DETAIL_API = f'{OPENAPI_HOST}/openapi/v1/sandbox/job'
+FILE_TOKEN_API = f'{OPENAPI_HOST}/openapi/v1/sandbox/job/file/token'