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_replay_controller.py

@@ -184,6 +184,8 @@ class _Host:
         #: has no dialog, so the answer is the field a test sets.
         self.workspace = None
         self.workspace_requests: list = []
+        self.workspace_kwargs: dict = {}
+        self.override_requests: list = []
 
     # AcquireGate reads (legacy private names kept as writeable fields for tests)
     @property
@@ -238,10 +240,15 @@ class _Host:
     def current_source_kind(self) -> str:
         return "recompute"
 
-    def bare_video_workspace(self, video):
+    def bare_video_workspace(self, video, **kwargs):
         self.workspace_requests.append(video)
+        self.workspace_kwargs = dict(kwargs)
         return self.workspace
 
+    def recording_analysis_overrides(self, recording):
+        self.override_requests.append(recording)
+        return False
+
     def analysis_service(self, recording, cancelled=None, *, on_progress=None):
         raise AssertionError("the test did not provide an analysis service")
 
@@ -577,3 +584,22 @@ def test_the_replay_entries_exist_only_in_the_replay_view(qt_app):
     assert actions["open_video"].enabled is True
     assert actions["open_video"].tooltips[-1] == ""
     assert parts[0].recompute_enabled[-1] is True
+
+
+def test_analyze_opens_a_remembered_video_that_is_not_loaded_yet(qt_app, tmp_path):
+    """A toolbar path alone used to notify ``playback.no_video`` and skip the dialog.
+
+    The rail can show a file name from a previous session while the engine has not opened
+    anything. 「分析视频」 must call ``load_video`` so the setup prompt appears — the same
+    path as picking the file again in the explorer.
+    """
+    bare = tmp_path / "1.mp4"
+    bare.write_bytes(b"not really a video")
+    engine = _Engine(has_video=False, video_only=False)
+    toolbar = _Toolbar(video_path=str(bare))
+    controller, host, engine, parts = _controller(engine=engine, toolbar=toolbar)
+
+    controller.on_recompute_toggled(True)
+    assert engine.opened == [("video", bare)], "the remembered file was not opened"
+    assert host.workspace_requests == [bare], "the setup dialog was not shown"
+    assert t("playback.no_video") not in host.notes