feat(film): live-interaction product film foundation

Capture pipeline (Playwright recordVideo + injected synthetic cursor + ffmpeg webm->mp4) and a Remotion LiveFilm composition driven by a 20-clip manifest with caption/zoom overlays and a music bed. Includes the capture orchestrator, storm-intel reference scene, pre-render smoke check, and VO script. Pure logic is unit-tested (28 passing). Remaining scene scripts are authored during live capture.

marketing/product-film/src/Root.tsx

@@ -1,16 +1,27 @@
 import { Composition } from "remotion";
 import { Film } from "./Film";
+import { LiveFilm, LIVE_TOTAL } from "./LiveFilm";
 import { TOTAL_FRAMES, FPS, WIDTH, HEIGHT } from "./timing";
 
 export const Root: React.FC = () => {
   return (
-    <Composition
-      id="LynkedUpProFilm"
-      component={Film}
-      durationInFrames={TOTAL_FRAMES}
-      fps={FPS}
-      width={WIDTH}
-      height={HEIGHT}
-    />
+    <>
+      <Composition
+        id="LynkedUpProLiveFilm"
+        component={LiveFilm}
+        durationInFrames={LIVE_TOTAL}
+        fps={FPS}
+        width={WIDTH}
+        height={HEIGHT}
+      />
+      <Composition
+        id="LynkedUpProFilm"
+        component={Film}
+        durationInFrames={TOTAL_FRAMES}
+        fps={FPS}
+        width={WIDTH}
+        height={HEIGHT}
+      />
+    </>
   );
 };