Stop memory-core dream diary fallback paths from persisting raw memory staging snippets or promotions into DREAMS.md when narrative generation times out, returns empty output, or fails in request-scoped runtime. Successful generated narratives are unchanged.
Maintainer fixup: align current gateway session-list tests with the full loadSessionEntry mock shape and model-derived context token behavior on main.
Fixes#88391
Co-authored-by: Alix-007 <li.long15@xydigit.com>
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>