fix(player): a Restart of the paused film plays the new session; a key on faded bands only shows them

The same-film restart read the paused state, restarted the session without play, and resumed the
outgoing stream beside it. Space or Enter on a control the bands had faded from pressed it unseen;
now it only brings them back, and Space plays or pauses.

frontend/src/lib/plexPlayerHooks.ts

@@ -90,6 +90,8 @@ export function useControlsVisibility(opts: {
   videoRef: RefObject<HTMLVideoElement | null>;
 }): {
   uiVisible: boolean;
+  /** Whether the bands are up right now — for a key handler that runs before the next render. */
+  controlsShown: () => boolean;
   wake: () => void;
   holdOnHover: (over: boolean) => void;
   holdOnFocus: (on: boolean) => void;
@@ -132,6 +134,7 @@ export function useControlsVisibility(opts: {
     [wake, menuOpenRef, setVisible],
   );
   const toggle = useCallback(() => show(!visibleRef.current), [show]);
+  const controlsShown = useCallback(() => visibleRef.current, []);
   const holdOnHover = useCallback(
     (over: boolean) => {
       hovered.current = over;
@@ -162,7 +165,7 @@ export function useControlsVisibility(opts: {
     },
     [],
   );
-  return { uiVisible, wake, holdOnHover, holdOnFocus, toggle, show };
+  return { uiVisible, controlsShown, wake, holdOnHover, holdOnFocus, toggle, show };
 }
 
 // Periodic + on-unmount progress checkpoint. Reads live position/duration through refs (owned by the