fix(m4): retain compact obstacle evidence

apps/control-station/src/core/laboratory/m4ReplayThreat.ts

@@ -90,6 +90,7 @@ export interface M4ThreatCameraProposal {
 
 export interface M4ThreatVisualFrame {
   resultId: string;
+  cameraUrl: string;
   ordinal: number;
   sequence: number;
   frameId: string;
@@ -408,6 +409,7 @@ export async function fetchM4ThreatVisual(
   const corridor = object(item.corridor, "M4.6 visual corridor");
   return {
     resultId: result,
+    cameraUrl: text(item.camera_url, "M4.6 camera URL"),
     ordinal: integer(item.ordinal, "M4.6 ordinal"),
     sequence: integer(item.sequence, "M4.6 sequence"),
     frameId: text(item.frame_id, "M4.6 frame id"),