Internal-only: serve the video-player export page for a project.

Returns HTML with bundle.js inlined and OTIO playlist (with presigned URLs) for the given project and resolution. Same page as export-server.js /export-page but with bundle inlined and project data baked in.

Resolution selects asset quality: 480p, 720p, 1080p, 4k. track_id (repeatable) renders only those tracks, the others disabled; frame_seconds renders the timeline at that time to a JPEG instead of encoding the MP4; frame_list (repeatable) renders each of its times to its own JPEG in one page load. start_seconds / end_seconds (timeline seconds) encode only that part of the timeline, rebased to 0 by the player.

A segmented export loads the page once per part: start_frame / end_frame (output frame indices, end exclusive) with audio=0 for a video-only segment, or audio_only=m4a for its sound — of the whole timeline, or of start_seconds / end_seconds for a ranged export. The frame range excludes the audio-only render, the second-based range and the frame export above.

hdr (hlg or pq) encodes the video as HDR (the player's hdr export option); it applies to a video encode only. No permission check: any project can be fetched by id (internal use only).