Existing test evidence; no tests rerun by evidence agent.

Red test commit: 99e6bcce6e452e26193580fbf25cc0b9387b5a14 (implementation at main 0604547a3a)
Command: vp test run apps/server/src/orchestration-v2/Adapters/ClaudeAdapterV2.test.ts -t 'an interrupted turn after a rollback stops resuming at the rolled-back head'
Reported by reproduce-test delegate, before implementation:
AssertionError: expected '00000000-0000-4000-8000-000000025510' to not equal '00000000-0000-4000-8000-000000025510'
ClaudeAdapterV2.test.ts:5139
Tests 1 failed | 236 skipped (237)
Implementation delegate tightened this to assert emitted provider_thread.updated has null nativeConversationHeadRef and reopened query has undefined resumeSessionAt; verified source reverted fails expected head object to equal null.

Green existing capture:
note: You are running `vp test` as a Vite+ built-in command. If you meant to run the test npm script, use `vpr test` instead.

 RUN  v5.0.5 /home/ubuntu/wt/issue-25510


 Test Files  1 passed (1)
      Tests  238 passed (238)
   Start at  22:52:01
   Duration  27.72s (tests 46%, transform 28%, import 14%, setup 13%)


Source reviewed: rollback interruption asserts null head + undefined resumeSessionAt; separate no-assistant-output interruption asserts original head retained.