ClipDeck 0.1.0 Preview 3 — faster verified preparation

Experimental Apple Silicon Mac preview built from b4069a9138997d0207788abfdd2f3b9797553ce3.

First preparation of the included 116.8-second real-camera-footage story took 18.44 / 18.33 / 18.21 seconds in three fresh production service/process/cache runs on the measured Apple M5 Pro Mac, compared with the two 32.75 / 32.81-second baseline observations. The fix requests four threads per validation decoder context and keeps every frame/sample/duration/timestamp/source/cancellation check. These instrumented filesystem-warm service observations are not a universal speed guarantee or click-to-visible benchmark.

This package was actually opened with a native project picker, prepared, navigated using words/cuts in the chosen Source/Assembly mode, expanded, played, paused, exported through a system Save panel and closed normally. Its newly exported 1920×1080/30 fps story validated at 3,504 frames and 5,606,400 audio samples, with bytes identical to the saved demo final. The 60-marker mixed-media reverse-order matrix passed in all three new runs. Exact-source CI passed both jobs.

Download the app ZIP and its matching source archive. The editable demo ZIP contains three unmodified USGS camera-footage originals, the portable project and the previously saved final MP4; its unchanged hash is recorded. The 50-second walkthrough is explicitly historical Preview 2 native capture footage with the same renderer, not a new speed measurement. SHA256SUMS and preview-verification.json bind all supplied artifacts.

The app bundles the media/Python runtimes and local punctuation resource. A Whisper recognition model still requires explicit setup. This is ad-hoc signed, without Developer ID signing or notarization; macOS 14 execution and other platforms are unverified. Use the exact source develop-and-verify instructions as the build alternative. Human listening/lip sync, a fresh large-project renderer campaign and full R01–R18 acceptance remain separate.

中文：这版修复了首次成片预览检查的单线程瓶颈。指定真实示例的三次独立准备为 18.44 / 18.33 / 18.21 秒，原来的两次记录约 32.8 秒；所有完整性检查保留。新程序已实际完成选段定位、放大播放和导出，提供可编辑真实工程。识别模型需明确准备；程序尚无 Apple 开发者签名与公证，人工音画审核和完整产品验收仍未宣称完成。