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, 2 insertions, 8 deletions

diff --git a/apps/web/src/components/editor/panels/assets/index.tsx b/apps/web/src/components/editor/panels/assets/index.tsx
index 09d64eed..c0204b12 100644
--- a/apps/web/src/components/editor/panels/assets/index.tsx
+++ b/apps/web/src/components/editor/panels/assets/index.tsx
@@ -3,7 +3,6 @@
 import { Separator } from "@/components/ui/separator";
 import { type Tab, useAssetsPanelStore } from "@/components/editor/panels/assets/assets-panel-store";
 import { TabBar } from "./tabbar";
-import { Captions } from "@/subtitles/components/assets-view";
 import { MediaView } from "./views/assets";
 import { SettingsView } from "./views/settings";
 import { SoundsView } from "@/sounds/components/assets-view";
@@ -20,18 +19,13 @@ export function AssetsPanel() {
 		sounds: FEATURES.sounds ? <SoundsView /> : null,
 		text: <TextView />,
 		stickers: FEATURES.stickers ? <StickersView /> : null,
-		effects: FEATURES.effects ? <EffectsView /> : null,
+		effects: FEATURES.effects ? <EffectsView category="effect" /> : null,
+		lens: FEATURES.effects ? <EffectsView category="lens" /> : null,
 		transitions: (
 			<div className="text-muted-foreground p-4">
 				Transitions view coming soon...
 			</div>
 		),
-		captions: <Captions />,
-		adjustment: (
-			<div className="text-muted-foreground p-4">
-				Adjustment view coming soon...
-			</div>
-		),
 		settings: <SettingsView />,
 	};