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- pipeline.test.ts:PipelineDeps 增加 syncMain 可注入接口(默认用真 git), 测试 mockDeps 加 syncMain=no-op + runConflict,消除 fake-worktree 上真 git 调用失败 - models.test.ts:reviewer 三档默认 fable-5、project.model 不覆盖复审/conflict、 MODEL_FALLBACK_CHAIN 三项链;pickFallbackModel 改为取链上下一档(循环)而非首个不等项 - ingest.test.ts:verdict=reject 硬闸测试改为断言未进 exec_review Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>