Click any asset card to open a modal with the H.264 proxy playing inline (or audio/image, per media_type). Esc or click outside closes. Sidebar shows status/codec/resolution/fps/duration/size/created plus tags and notes.
Plugin install side: added install-windows.ps1 that copies the CEP panel to %APPDATA%\Adobe\CEP\extensions, flips PlayerDebugMode=1 across the CSXS.8-13 hives, and prints the next steps. Plugin already wired against the current API.
* services/web-ui/public/js/preview.js: standalone IIFE that lazy-injects the modal markup + CSS on first use. Renders <video controls> (or <audio>, <img>) sourced from /api/v1/assets/:id/stream, with sidebar from /api/v1/assets/:id. Falls back to a clear empty state when proxy is still processing.
* services/web-ui/public/index.html: loads preview.js, wires asset-card click to window.openAssetPreview(asset.id), guards against delete-button clicks bubbling.
* services/premiere-plugin/install-windows.ps1: one-shot Windows installer for the CEP extension.
