fix(lab): show only actionable obstacle boxes

apps/control-station/test/m4ReplayThreat.test.mjs

@@ -370,7 +370,7 @@ test("M4.8S timeline binds factory-KB4 camera points through its exact endpoint"
         camera_point_sample_limit: 20000,
         world_state_delivery: "source-paced-latest-wins",
         occupancy_provenance_delivery: "baseline-versus-additive-component-diff",
-        camera_obstacle_projection_delivery: "factory-kb4-occupied-voxel-bounds",
+        camera_obstacle_projection_delivery: "factory-kb4-actionable-added-corridor-bounds",
         world_state_frame_count: 4481,
         superseded_frame_count: 8,
         local_surface_visualization: {
@@ -400,7 +400,7 @@ test("M4.8S timeline binds factory-KB4 camera points through its exact endpoint"
   assert.equal(timeline.supersededFrameCount, 8);
   assert.equal(
     timeline.cameraObstacleProjectionDelivery,
-    "factory-kb4-occupied-voxel-bounds",
+    "factory-kb4-actionable-added-corridor-bounds",
   );
 
   const chunk = await fetchM4ThreatTimelineChunk(replayResultId, 1, 1, {
@@ -455,7 +455,7 @@ test("M4.8S timeline binds factory-KB4 camera points through its exact endpoint"
   assert.match(requested, new RegExp(`^${endpointRoot}/${replayResultId}/timeline/chunk`));
   assert.match(
     requested,
-    /obstacle_projection=factory-kb4-occupied-voxel-bounds/,
+    /obstacle_projection=factory-kb4-actionable-added-corridor-bounds/,
   );
   assert.equal(chunk.frames[0].worldStateAvailable, false);
   assert.equal(chunk.frames[0].terminalOutcome, "superseded");
@@ -525,6 +525,24 @@ test("M4.8R3 turns active low-step components into native fisheye obstacle boxes
     obstacle,
     { ...obstacle, componentId: "baseline", occupancySource: "baseline" },
     { ...obstacle, componentId: "held", state: "held" },
+    {
+      ...obstacle,
+      componentId: "unknown",
+      assessment: {
+        ...obstacle.assessment,
+        decision: "unknown",
+        corridorIntersection: "unknown",
+      },
+    },
+    {
+      ...obstacle,
+      componentId: "clear",
+      assessment: {
+        ...obstacle.assessment,
+        decision: "not-threat",
+        corridorIntersection: "clear",
+      },
+    },
   ], 800, 600);
   assert.equal(boxes.length, 1);
   assert.deepEqual(boxes[0].boxXyxy, [394, 294, 406, 306]);
@@ -533,6 +551,59 @@ test("M4.8R3 turns active low-step components into native fisheye obstacle boxes
   assert.equal(boxes[0].dashed, false);
 });
 
+test("M4.8R3 keeps separate CURRENT threats and suppresses their spanning ROLLING box", () => {
+  const current = {
+    componentId: "temporal-left-1",
+    state: "current",
+    motion: "stationary",
+    centroidBodyXyzM: [3, 0, 0.3],
+    cellCentersBodyXyzM: [[3, 0, 0.3]],
+    occupancySource: "additive-low-step",
+    cameraProjection: {
+      bboxXyxy: [350, 260, 410, 310],
+      nearestDepthM: 3,
+      projectedCellCount: 2,
+      projection: "factory-kb4-occupied-voxel-bounds",
+      authority: "visual-derived",
+    },
+    assessment: {
+      componentId: "temporal-left-1",
+      decision: "threat",
+      corridorIntersection: "intersects",
+      relativeSpeedMps: null,
+      closestApproachM: 2.5,
+      ttcSeconds: null,
+      reasonCodes: ["current-corridor-intersection"],
+    },
+  };
+  const boxes = buildM4StaticObstacleBoxes([
+    current,
+    {
+      ...current,
+      componentId: "temporal-right-2",
+      cameraProjection: {
+        ...current.cameraProjection,
+        bboxXyxy: [405, 265, 445, 320],
+      },
+    },
+    {
+      ...current,
+      componentId: "rolling-spanning",
+      state: "retained",
+      cameraProjection: {
+        ...current.cameraProjection,
+        bboxXyxy: [340, 255, 450, 325],
+      },
+    },
+  ], 800, 600);
+
+  assert.equal(boxes.length, 2);
+  assert.deepEqual(boxes.map((box) => box.label).sort(), [
+    "OBS #1 · 3 м",
+    "OBS #2 · 3 м",
+  ]);
+});
+
 test("M4.6 local SLAM surface reprojects registered increments into the active body frame", () => {
   const frames = [
     timelineFrame(0, 10, {