[68e1e4db] Video: release 0.26.0 (#604)

* [68e1e4db] feat(video): author release-0.26.0 marketing clip in the panel-demo kit register

* [68e1e4db] fix(video): extend pk-frame clip window to full length to kill black-gap render bug

* [68e1e4db] docs(video): document release-0.26.0 composition structure in motion/README

Added a comprehensive "Release-specific example: release-0.26.0" section documenting the v0.26.0 marketing video composition: a 40-second panel-demo kit clip showcasing four key features (orchestrator security hardening, three-forge support, Telegram Mini App V4, active guard mode) with choreographed panel elements, stats overlay, and dual-format captions. Includes preview/test instructions, props.js shape, captions schema with verified character counts, and smoke-test invariants matching the pattern established by release-0.25.0.

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Co-authored-by: UX/UI Developer 1 <ux-dev-1@roboco.tech>
Co-authored-by: UX/UI Documenter <ux-doc@roboco.tech>

motion/node_modules

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+/data/workspaces/roboco-api/ux_ui/ux-dev-1/motion/node_modules