Present replay 3D with the cursor and open Analyze on a remembered video

Replay left the 3D pane on the rest mesh or a sparse overlay, and Analyze skipped the setup dialog unless the file was re-picked. Live Run no longer starts a chain on a video path. Verified with Studio tests for flush, overlay mask, Analyze open, live-video refusal, and locales.

apps/studio/tests/test_ui_smoke.py

@@ -1509,6 +1509,33 @@ def test_the_source_picker_follows_the_view(make_window):
     _finish(window, stuck)
 
 
+def test_live_run_refuses_a_video_source(make_window, monkeypatch):
+    """Live acquires from a camera; a leftover video mode must not start a chain."""
+    from orisys_app_shared.i18n import t
+    from PySide6.QtWidgets import QApplication
+
+    window = make_window(sensor_type="finger", source_mode="camera")
+    try:
+        window.brand_bar.btn_live.click()
+        QApplication.processEvents()
+        window.toolbar.set_video_path(r"C:\tmp\demo.mp4")
+        window._set_source_mode("video")
+        QApplication.processEvents()
+        assert not window.toolbar.btn_run.isEnabled(), "Run is offered for a video file in live"
+        called: list[str] = []
+        monkeypatch.setattr(
+            "orisys_app_shared.acquisition.sdk_worker.orisys_importable",
+            lambda: called.append("import") or (True, ""),
+        )
+        window.toolbar.set_run_checked(True)
+        window._start_run()
+        assert called == [], "a video source reached the acquisition path"
+        assert window.toolbar.btn_run.isChecked() is False
+        assert t("toolbar.run_video_in_replay") in window.statusBar().currentMessage()
+    finally:
+        window.close()
+
+
 def test_the_nav_items_switch_the_main_window_layout(make_window):
     window, stuck = _running_window(make_window)
     for index in range(60):