feat(k1): complete primary acquisition lifecycle

tests/test_frontend_plugin_boundaries.py

@@ -104,7 +104,8 @@ def test_xgrids_frontend_uses_semantic_acquisition_actions_and_stable_identity()
     assert hook_source.index("xgridsK1Api.prepareAcquisition") < hook_source.index(
         "xgridsK1Api.startAcquisition"
     )
-    assert 'mode: "capture-only"' in hook_source
+    assert "isSoftwareCommandedAcquisition(state)" in hook_source
+    assert '? "graceful" : "capture-only"' in hook_source
     assert "state.device_ref" in runtime_source
     assert "instanceId: deviceRef.device_id" in runtime_source
     assert "acquisition?.acquisition_id" in runtime_source
@@ -124,7 +125,34 @@ def test_xgrids_live_copy_does_not_claim_software_controls_the_physical_scanner(
         / "K1AcquisitionPipeline.tsx"
     ).read_text("utf-8")
 
-    assert "Подготовить приём данных" in connection_source
-    assert "Программная команда запуска на K1 пока не отправляется" in connection_source
+    assert "Подготовить локальный приём данных" in connection_source
+    assert "Программная команда запуска на K1 не отправляется" in connection_source
     assert "Остановить локальный приём" in connection_source
     assert "Физическое состояние сканера остаётся неизвестным" in connection_source
+
+
+def test_xgrids_start_uses_atomic_automatic_source_transition() -> None:
+    repository_root = Path(__file__).resolve().parents[1]
+    pipeline_source = (
+        repository_root
+        / "plugins"
+        / "xgrids-k1"
+        / "frontend"
+        / "src"
+        / "components"
+        / "K1AcquisitionPipeline.tsx"
+    ).read_text("utf-8")
+    transition_source = (
+        repository_root / "plugins" / "xgrids-k1" / "frontend" / "src" / "automaticSourceStart.ts"
+    ).read_text("utf-8")
+
+    assert pipeline_source.count("runAutomaticSpatialSourceStart(") == 2
+    assert transition_source.index("const started = await start();") < (
+        transition_source.index("activateAutomaticSpatialSource();")
+    )
+    assert transition_source.index("if (!started) return false;") < (
+        transition_source.index("activateAutomaticSpatialSource();")
+    )
+    assert transition_source.index("activateAutomaticSpatialSource();") < (
+        transition_source.index("openSpatialScene();")
+    )