FaceEditor previously required an HTMLImageElement | HTMLVideoElement prop to
compute layout metrics and generate the face crop preview. This was unavailable
for video assets, so the preview thumbnail in the Create Person modal was always
missing, and face positions could be NaN during image load (naturalWidth is 0
before the image decodes).
Replace the DOM element prop with assetSize: Size and containerSize: Size, using
asset metadata dimensions that are always available from the API response.
computeContentMetrics() is extracted as a pure utility alongside
mapContentRectToNatural() for converting face rect coordinates back to original
image space.
For videos, VideoNativeViewer now captures the current frame to canvas when face
edit mode opens and sets assetViewerManager.imgRef, giving FaceEditor the same
image-based preview path as photo assets.
Change-Id: I0e9da549e3af40211abad4ab2c0270706a6a6964
* feat(web): adaptive progressive image loading for photo viewer
Replace ImageManager with a new AdaptiveImageLoader that progressively
loads images through quality tiers (thumbnail → preview → original).
New components and utilities:
- AdaptiveImage: layered image renderer with thumbhash, thumbnail,
preview, and original layers with visibility managed by load state
- AdaptiveImageLoader: state machine driving the quality progression
with per-quality callbacks and error handling
- ImageLayer/Image: low-level image elements with load/error lifecycle
- PreloadManager: preloads adjacent assets for instant navigation
- AlphaBackground/DelayedLoadingSpinner: loading state UI
Zoom is handled via a derived CSS transform applied to the content
wrapper in AdaptiveImage, with the zoom library (zoomTarget: null)
only tracking state without manipulating the DOM directly.
Also adds scaleToCover to container-utils and getAssetUrls to utils.
* fix: don't partially render images in firefox
* add passive loading indicator to asset-viewer
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Co-authored-by: Alex <alex.tran1502@gmail.com>