feat: lens effects tab, standalone motion effects, clip/asset rename, preview popout

- New Lens category in the assets panel: Blur, Motion Blur, Zoom In/Out,
  Pan x4, Shake, Pulse, Spin, Custom Zoom. EffectDefinition gains a
  category field; tabs with an empty category are hidden, and the
  properties-panel 'Open effects' button opens the first non-empty one.
- Motion effects work standalone: dropping them on the timeline creates
  an effect-track element that animates (scale/translate/rotate) every
  track below it, computed purely in the TS frame descriptor - no wasm
  changes, identical in preview and export. supportsStandalone removed.
- Motion Blur: directional gaussian smear (amount + angle) reusing the
  existing WGSL shader with arbitrary u_direction.
- Custom Zoom: start/end scale params (keyframable clip-level).
- MotionOffset gains optional rotate, accumulated clip-level and applied
  to standalone layer quads via rotationDegrees.
- Rename clips (timeline context menu) and media assets (media panel
  context menu) via a shared RenameDialog; asset rename persists through
  storageService with rollback on error.
- Preview pops out into a Document Picture-in-Picture window and docks
  back; button hidden where the API is unsupported.
- Export keeps running when the export popover is closed; only the
  explicit Cancel button aborts.
- Captions and Adjustment tabs removed from the assets panel.

1 files changed, 45 insertions, 14 deletions

diff --git a/apps/web/src/components/editor/panels/assets/views/assets.tsx b/apps/web/src/components/editor/panels/assets/views/assets.tsx
index 4dbed41e..049cb5f4 100644
--- a/apps/web/src/components/editor/panels/assets/views/assets.tsx
+++ b/apps/web/src/components/editor/panels/assets/views/assets.tsx
@@ -48,8 +48,10 @@ import {
 import { MASKABLE_ELEMENT_TYPES } from "@/timeline";
 import type { MediaAsset } from "@/media/types";
 import { cn } from "@/utils/ui";
+import { RenameDialog } from "@/components/editor/rename-dialog";
 import {
 	CloudUploadIcon,
+	Edit02Icon,
 	GridViewIcon,
 	LeftToRightListDashIcon,
 	SortingOneNineIcon,
@@ -316,25 +318,54 @@ function MediaItemWithContextMenu({
 	}) => void;
 }) {
 	const { isSelected, selectedIds } = useSelection();
+	const editor = useEditor();
+	const activeProject = useEditor((e) => e.project.getActive());
+	const [isRenameDialogOpen, setIsRenameDialogOpen] = useState(false);
 	const idsToDelete = isSelected(item.id) ? selectedIds : [item.id];
 	const deleteLabel =
 		idsToDelete.length > 1 ? `Delete ${idsToDelete.length} items` : "Delete";
 
 	return (
-		<ContextMenu>
-			<ContextMenuTrigger asChild>{children}</ContextMenuTrigger>
-			<ContextMenuContent>
-				<ContextMenuItem>Export clips</ContextMenuItem>
-				<ContextMenuItem
-					variant="destructive"
-					onClick={(event: React.MouseEvent<HTMLDivElement>) =>
-						onRemove({ event, ids: idsToDelete })
-					}
-				>
-					{deleteLabel}
-				</ContextMenuItem>
-			</ContextMenuContent>
-		</ContextMenu>
+		<>
+			<ContextMenu>
+				<ContextMenuTrigger asChild>{children}</ContextMenuTrigger>
+				<ContextMenuContent>
+					<ContextMenuItem
+						icon={<HugeiconsIcon icon={Edit02Icon} />}
+						onClick={(event: React.MouseEvent<HTMLDivElement>) => {
+							event.stopPropagation();
+							setIsRenameDialogOpen(true);
+						}}
+					>
+						Rename
+					</ContextMenuItem>
+					<ContextMenuItem>Export clips</ContextMenuItem>
+					<ContextMenuItem
+						variant="destructive"
+						onClick={(event: React.MouseEvent<HTMLDivElement>) =>
+							onRemove({ event, ids: idsToDelete })
+						}
+					>
+						{deleteLabel}
+					</ContextMenuItem>
+				</ContextMenuContent>
+			</ContextMenu>
+			<RenameDialog
+				isOpen={isRenameDialogOpen}
+				onOpenChange={setIsRenameDialogOpen}
+				currentName={item.name}
+				title="Rename asset"
+				onConfirm={(newName) => {
+					if (!activeProject) return;
+					editor.media.renameMediaAsset({
+						projectId: activeProject.metadata.id,
+						id: item.id,
+						name: newName,
+					});
+					setIsRenameDialogOpen(false);
+				}}
+			/>
+		</>
 	);
 }