Add clip pinning test coverage

backend/app/routes/media.py

@@ -41,6 +41,7 @@ def clip_to_response(clip: AudioClip) -> AudioClipResponse:
         start_ms=clip.start_ms,
         end_ms=clip.end_ms,
         sort_order=clip.sort_order,
+        hidden=clip.hidden,
         normalization_status=clip.normalization_status,
         normalized_url=normalized_url,
         waveform_duration_ms=waveform["duration_ms"] if waveform else None,
@@ -340,6 +341,8 @@ def update_clip(
     clip.end_ms = payload.end_ms
     if payload.sort_order is not None:
         clip.sort_order = payload.sort_order
+    if payload.hidden is not None:
+        clip.hidden = payload.hidden
     db.commit()
     db.refresh(clip)
     return clip_to_response(clip)
@@ -376,6 +379,7 @@ def delete_clip(
 def list_clips(
     external_team_id: str,
     owner_external_player_id: str | None = None,
+    include_hidden: bool = False,
     _: UserSession = Depends(require_session),
     db: Session = Depends(get_db),
 ) -> list[AudioClipResponse]:
@@ -387,6 +391,8 @@ def list_clips(
     )
     if owner_external_player_id:
         query = query.where(AudioAsset.owner_external_player_id == owner_external_player_id)
+    if not include_hidden:
+        query = query.where(AudioClip.hidden.is_(False))
     clips = db.scalars(query).all()
     return [clip_to_response(clip) for clip in clips]