feat: expose acoustic realism controls

apps/acoustic-camera/simulation-worker.js

@@ -24,6 +24,9 @@ function signalStats(synthesis) {
     appliedScale: synthesis.appliedScale,
     clippedSampleCount: synthesis.clippedSampleCount,
     peak: synthesis.peak,
+    acousticModel: synthesis.acousticModel,
+    acousticPathCount: synthesis.acousticPathCount,
+    acousticPathCounts: synthesis.acousticPathCounts,
   };
 }
 
@@ -167,7 +170,7 @@ self.addEventListener("message", async (event) => {
       await runTimeline(event.data);
       return;
     }
-    post("progress", jobId, { stage: "signal", message: "192채널 자유음장 신호를 합성하고 있습니다…" });
+    post("progress", jobId, { stage: "signal", message: "마이크 수신 신호를 합성하고 있습니다…" });
     const signalStartedAt = performance.now();
     const synthesis = synthesizeMicrophoneSignals({
       scene,