Serving-related e2e tests are currently failing. Similar to VFolder (FR-2464) and Session (FR-2465) e2e test issues, these tests need to be reviewed to determine root causes and rewritten to be stable and accurate.

Context: This is part of the broader e2e test audit under the FR-2463 epic.

Goal: Audit all Serving e2e tests, identify root causes for failures, and rewrite them to be stable and accurate.

JIRA Issue: FR-2472