Don't sort available camera IDs

Remove sorting when building available_ids so the original frame key order is preserved. The DLC camera selection relies on the first active camera in frame_data.frames; using list(...) keeps the insertion/order semantics (dict order) instead of reordering keys with sorted(). This avoids unintended changes to camera priority caused by alphabetical/numeric sorting.

Author: C-Achard

dlclivegui/gui/main_window.py

@@ -1384,7 +1384,7 @@ def _on_multi_frame_ready(self, frame_data: MultiFrameData) -> None:
 
         # Determine DLC camera (first active camera)
         selected_id = self._inference_camera_id
-        available_ids = sorted(frame_data.frames.keys())
+        available_ids = list(frame_data.frames.keys())
         if selected_id in frame_data.frames:
             dlc_cam_id = selected_id
         else: