cr review rerun fails in thread_analysis resume: agent-logs/thread-analysis log file not found #699

A cr review <pr> rerun crashed in the thread_analysis phase. It was on a PR that already had review threads from an earlier cr review run.

What happened

• cr 0.10.357 (c2ccbb9), profile codex-rianjs-bot, codex_cli harness.
• The first cr review on feat(review): warn when a profile agent source is behind its upstream #698 worked and posted two inline threads.
• After fixes were pushed, a plain cr review rerun failed. Thread analysis tried to resume the orchestrator session and could not open its log file:

cr progress event=error command="review" op="resume_llm" target="llm" effort="low" harness="codex_cli" log_file="PRRT_kwDOSrNqjc6yHx9x-231021328d58.jsonl" model="gpt-6.1-terra" provider="openai" duration_ms=0 status=error error="open [path] [path] no such file or directory"
cr progress event=error command="review" op="run_llm_task" target="llm_task" ... phase="thread_analysis" resume_session_id="01a18e5c-7a99-7d61-b8d2-34b2fabf888c" source="resume" task_id="thread-analysis-PRRT_kwDOSrNqjc6yHx9x" task_status="failed_blocking" duration_ms=0 status=error ...
open ~/Library/Application Support/cr/data/runs/github.com_open-cli-collective_codereview-cli_698/8436ab952a26/c2ccbb9c4139/7dad7da07f19/run-8c9be83a-cb67-40d9-a43c-4684d14e1297/agent-logs/thread-analysis/PRRT_kwDOSrNqjc6yHx9x-231021328d58.jsonl: no such file or directory

• Rerunning with --fresh-session worked.

Likely cause

resume_llm failed in 0 ms, before any LLM call. That points to the agent-logs/thread-analysis/ directory not being created before the log file was opened on the resume path.

Expected

The parent directory of the thread-analysis log is created before the file is opened, so a resumed thread analysis works like a fresh one. A regression test should cover resuming thread analysis on a PR with existing threads.