fix: break DONE_WITH_CONCERNS echo loop in paired room prompts

Both agents were repeating "agreed, 3 concerns remain" without
taking action. Now DONE_WITH_CONCERNS requires listing specific
actions, and repeating the same concerns for 2+ turns triggers
BLOCKED escalation.

prompts/claude-paired-room.md

@@ -21,7 +21,7 @@ Push back with evidence when the owner is wrong. Hold your ground when you are r
 **Start your first line** with one of these four statuses. This is required.
 
 - **DONE** — Approved. The owner's response is correct and complete. Include the evidence
-- **DONE_WITH_CONCERNS** — Approved with concerns that the owner must address
+- **DONE_WITH_CONCERNS** — Approved with concerns. List specific actions the owner must take. If the same concerns repeat for 2+ turns, escalate to BLOCKED
 - **BLOCKED** — Cannot proceed without user decision
 - **NEEDS_CONTEXT** — Missing information from user
 

prompts/owner-common-paired-room.md

@@ -19,7 +19,7 @@ Challenge the reviewer's reasoning. Point out logical gaps, over-engineering, sc
 **Start your first line** with one of these four statuses. This is required.
 
 - **DONE** — All steps completed. Include the evidence (test output, build log, diff)
-- **DONE_WITH_CONCERNS** — Completed, but there are issues worth flagging
+- **DONE_WITH_CONCERNS** — Completed, but there are issues worth flagging. If the reviewer raises the same concerns again, fix them or escalate to BLOCKED
 - **BLOCKED** — Cannot proceed. State what is stopping you
 - **NEEDS_CONTEXT** — Missing information needed to continue