verification

# Verification Use the lowest verification level that proves the requested result: | Level | Required evidence | |---|---| | L0 | Static checks such as the focused verification script, `npx tsc --noEmit`, tests, and build. | | L1 | A real Agent run against the editor at `localhost:5199`, followed by structural and rendered evidence. | | L2 | The packaged desktop app completing the user scenario, including human visual review where automation is insufficient. | Runtime behavior changes require L0 + L1. Release and desktop-only changes also require L2 when the packaged app is the behavior under test. Prefer two signals: 1. `read_project` for structure: assets, tracks, items, frame placement, timeline duration. 2. A visual capture path for rendered evidence at exact frames. Use `view_timeline_frames` for composed timeline proof. This verifies the edited OpenChatCut timeline: trims, layers, captions, effects, markers, placeholders, crops, transitions, and layout. For raw source-asset frame inspection, choose the cheapest path based on where the bytes live: - The agent in this build has no local filesystem access; all source bytes live in the project media store (`/media/uploads/`). Use `view_asset_frames` with the project asset id — the server takes an ffmpeg contact-sheet fast path automatically, so it is already the cheapest source-frame route. - `view_timeline_frames` renders the composed timeline (the editor-truth check); `view_asset_frames` samples raw source...