Harden update, system-check, queue, cutter, streamer and shutdown state transitions.
Add multi-user installer recovery, secret-safe config migration, provider fallback handling, managed-tool validation and real media export coverage.
Refresh the English public documentation, release notes and 1.0.18 product screenshot.
Keep the loaded cutter layout stable across supported window sizes, preserve recovered encoder choices during capability discovery, and reject unsupported video selections without changing the active project.
Honor the Windows system theme, fully localize runtime metrics, invalidate imported System Check state safely, and bound child-process shutdown waits when close events never arrive.
Extend focused and Electron smoke coverage and prepare the v1.0.17 public release metadata.
Track settings input generations so an older asynchronous secret save cannot mark a newer value durable. Commit queue snapshots before cancellation, cleanup, or pause effects so SQLite failures leave runtime processes and files unchanged.
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