Tweaks ton esure that

gnommo/transformer.py

@@ -134,7 +134,18 @@ def _is_known_marker(
         return True
 
     # Video/narration triggers (all supported prefixes)
-    _VIDEO_PREFIXES = ("video:", "narration:", "vft:", "vfb:", "vst:", "vsb:", "vftp:", "vfbp:", "vstp:", "vsbp:")
+    _VIDEO_PREFIXES = (
+        "video:",
+        "narration:",
+        "vft:",
+        "vfb:",
+        "vst:",
+        "vsb:",
+        "vftp:",
+        "vfbp:",
+        "vstp:",
+        "vsbp:",
+    )
     if any(marker_id.startswith(p) for p in _VIDEO_PREFIXES):
         return True
 
@@ -923,9 +934,7 @@ def _extract_video_events(
                     f"Marker [video:{video_id}] — cutout '{video_source.cutout}' is not defined in project config. "
                     f"Available: {list(cutouts.keys())}"
                 )
-            video_markers.append(
-                (timing.timestamp, video_id, "video", None, None)
-            )
+            video_markers.append((timing.timestamp, video_id, "video", None, None))
             continue
 
         # --- [narration:xxx] ---
@@ -946,9 +955,7 @@ def _extract_video_events(
                     f"Marker [narration:{video_id}] — cutout '{video_source.cutout}' is not defined in project config. "
                     f"Available: {list(cutouts.keys())}"
                 )
-            video_markers.append(
-                (timing.timestamp, video_id, "narration", None, None)
-            )
+            video_markers.append((timing.timestamp, video_id, "narration", None, None))
 
     events: list[VideoEvent] = []
     for (