Stabilize recording and camera tests

Update tests to match recent recording/capture API changes and reduce flakiness. Camera dialog E2E stubs now return `CapturedFrame`, multicam tests validate the new recording sink path (including timestamp metadata forwarding), and recording manager tests consistently clean up with `stop_all()` plus queue flushes before assertions. GUI overlay tests tied to removed behavior are now skipped, and config tests now expect numeric `-input_framerate` values instead of formatted strings.

Author: C-Achard

tests/gui/camera_config/test_cam_dialog_e2e.py

@@ -8,7 +8,7 @@
 from PySide6.QtCore import Qt
 from PySide6.QtWidgets import QMessageBox
 
-from dlclivegui.cameras.base import CameraBackend
+from dlclivegui.cameras.base import CameraBackend, CapturedFrame
 from dlclivegui.cameras.factory import CameraFactory, DetectedCamera
 from dlclivegui.config import CameraSettings, MultiCameraSettings
 from dlclivegui.gui.camera_config.camera_config_dialog import CameraConfigDialog
@@ -194,7 +194,7 @@ def close(self):
             self._opened = False
 
         def read(self):
-            return np.zeros((30, 40, 3), dtype=np.uint8), 0.1
+            return CapturedFrame(np.zeros((30, 40, 3), dtype=np.uint8), 0.1, None)
 
     CountingBackend.opens = 0
     monkeypatch.setattr(CameraFactory, "create", staticmethod(lambda s: CountingBackend(s)))
@@ -238,7 +238,7 @@ def close(self):
             self._opened = False
 
         def read(self):
-            return np.zeros((30, 40, 3), dtype=np.uint8), 0.1
+            return CapturedFrame(np.zeros((30, 40, 3), dtype=np.uint8), 0.1, None)
 
     CountingBackend.opens = 0
     monkeypatch.setattr(CameraFactory, "create", staticmethod(lambda s: CountingBackend(s)))

tests/gui/test_pose_overlay.py

@@ -9,6 +9,7 @@ def stop(self):
 
 @pytest.mark.gui
 @pytest.mark.timeout(10)
+@pytest.mark.skip("Removed functionality.")
 def test_record_overlay_uses_identity_transform_for_per_camera_recording(window, draw_pose_stub):
     # Disable event timers to avoid GUI rendering pipelines interfering with test
     window._display_timer.stop()
@@ -47,6 +48,7 @@ def test_record_overlay_uses_identity_transform_for_per_camera_recording(window,
 
 @pytest.mark.gui
 @pytest.mark.timeout(10)
+@pytest.mark.skip("Removed functionality.")
 def test_record_overlay_toggle_affects_frames_sent_to_recorder(window, recording_frame_spy, draw_pose_stub):
     # Disable event timers to avoid GUI rendering pipelines interfering with test
     window._display_timer.stop()