docs(console): record quarantine branch policy

Record the temporary operations-center-testing-branch policy and add the CxRP ShippingForm review/refinement follow-up to the durable backlog.

Co-Authored-By: Codex GPT-5 <codex@openai.com>

Author: ProtocolWarden

.console/backlog.md

@@ -4,8 +4,7 @@ _Durable work inventory. Update after each meaningful chunk of progress._
 
 ## In Progress
 
-(none — runtime boundary extraction validation arc complete; Runtime
-Observability Hardening arc complete; next arc proposed in ADR 0002)
+- [ ] **CxRP — review and refine quarantined `ShippingForm` + related OC branch work on `operations-center-testing-branch` (2026-05-11)**: Treat `operations-center-testing-branch` as the temporary quarantine/staging lane for OC-authored cross-repo work. Review the surviving `ShippingForm` implementation on `CxRP main`, compare it against the quarantined `AgentTopology`/follow-up lineage on `operations-center-testing-branch`, decide what should be retained, revised, or dropped, and only then merge deliberate follow-up changes back to `main`. Do not reopen direct OC writes to `main` while this quarantine policy is active.
 
 ## Up Next — Verification Gaps arc
 

.console/log.md

@@ -3,6 +3,15 @@
 _Chronological continuity log. Decisions, stop points, what changed and why._
 _Not a task tracker — that's backlog.md. Keep entries concise and dated._
 
+## 2026-05-11 — cross-repo quarantine branch normalization
+
+- Confirmed hard cross-repo OperationsCenter provenance only in CxRP (`6db7663` -> `8e43e07` -> `ac0fcd5` / merged `cf33e8a`).
+- Rewrote `CxRP main` to retain non-quarantine follow-up commits while removing the OC-originated `AgentTopology` lineage from `main`.
+- Promoted `operations-center-testing-branch` as the temporary cross-repo quarantine/staging branch name.
+- Created or pushed `operations-center-testing-branch` in all managed repos; for CxRP it remains the quarantined lineage at `ac0fcd5`.
+- Updated local OC repo settings to target `sandbox_base_branch: operations-center-testing-branch` for all managed repos.
+- Added backlog follow-up to review/refine quarantined `ShippingForm` / related CxRP work before any deliberate merge back to `main`.
+
 ## 2026-05-10 — docs(watchdog): add self-healing convergence phases
 
 Updated docs/operator/watchdog_loop.md to make the loop's self-healing evolution explicit: