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mini-desktop(minione-ubuntu-desktop)scratch 检出 11c8eaf,host-dev/entry.js 经 esbuild 锁参打 host-bundle.js(littlejsengine@1.18.19 真入包),systemd-run static-serve(:4321,根=host-dev/)+chrome --headless=new(:9222,autoplay 放行), driver=test/harness/gate0-engine-takeover.cjs+stub 通道独立核对。 门0 G0-1~G0-8 共 8 门全过(gate0_rc=0/g08_rc=0): - G0-1 引擎真起(非桩):bootedReal/gameInit/hasEngine 皆 true - G0-2 引擎内部 RAF 真掌帧:frame 42→72/500ms=Δ30∈[20,45](排单步假推进/失控空转) - G0-3 time≈frame/60 一致性自检 Δ0.0167s(仅自检非掌帧证据) - G0-4 timeReal 纯墙钟 Δ0.5001s≈500ms(P75 钟可用) - G0-5 双时钟物理隔离(引擎 LJS.time vs probe mockNowMs 不同源) - G0-6 受控面零改回归:initOk/verifyOk/uncaught=[](AudioContext 告警非 error) - G0-7 渲染落 2D mainContext(#game-engine):780×1688·coloredHits=7(粒子真渲)·whiteTextHits=0(水印已除) - G0-8 回滚桩活(stub):initOk/verifyOk/uncaught=[]/noEngine=true 对抗复审纠偏经实测兑现:setDebugWatermark(false)→whiteTextHits=0; setCanvasClearColor(BLACK)→不透明黑底;real 像素门 overshoot→stub 通道独占逐像素。 A0=地基立住:LittleJS 引擎真成为 host-dev 运行时,受控面契约零改(引擎可换边界守住), 回滚桩活。A1-A6 在此地基接线。证据=game-runtime/evidence/gate0/。 Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>