Wire token-budget packing into the overview/rerank fallback path

coordination/README.md

@@ -105,6 +105,14 @@ self-hosted embedding/vLLM plan (assumption GĐ-3 in
 
 ## Active ownership
 
+- Codex parallel session: **STOPPED, 2026-08-10** — owner ended the session.
+  Left `rag/expansion.py` and `rag/context.py` finished and tested but not
+  wired into any live retrieval path; `rag/fusion.py`/`tests/test_fusion.py`
+  (a third, separate ChatGPT session's work, per Codex's own note above)
+  likewise finished-but-unwired. Claude took over this scope at the owner's
+  explicit direction same session — see `project_production_deployment_live`
+  memory and `docs/progress-log.md` for what got wired in and why.
+
 - Claude: **PAUSED END OF SESSION, 2026-08-06** — worked the full
   correction order from `CODEX_RAG_CODE_REVIEW_2026-08-06.md`. **F-01
   through F-07 and F-09 done; F-08 and F-10 done for their core finding,