From d2070d93e10a1111c35bdab2f7675693d8f63be9 Mon Sep 17 00:00:00 2001
From: Your Name <your.email@example.com>
Date: Thu, 5 Mar 2026 21:23:01 +0800
Subject: [PATCH] refactor(scene-fusion): always run agent subject detection
 for prompt enrichment

---
 app/api/scene-fusion/route.ts | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/app/api/scene-fusion/route.ts b/app/api/scene-fusion/route.ts
index 11b34fac9..1d772ae5a 100644
--- a/app/api/scene-fusion/route.ts
+++ b/app/api/scene-fusion/route.ts
@@ -289,19 +289,21 @@ async function enrichSceneLabelsWithAgent(params: {
     })),
   };
 
-  if (!resolvedProductName) {
-    try {
-      const productDetected = await detectProductNameWithAgent(params.productImageUrl);
-      if (productDetected?.name) {
+  try {
+    const productDetected = await detectProductNameWithAgent(params.productImageUrl);
+    if (productDetected?.name) {
+      if (!resolvedProductName) {
         resolvedProductName = productDetected.name;
-        meta.productName = productDetected.name;
         meta.productSource = "agent";
-        meta.productConfidence = productDetected.confidence;
-        meta.productModel = productDetected.model;
+      } else {
+        meta.productSource = "user";
       }
-    } catch (error) {
-      console.warn(`[SceneFusion][${params.requestId}] Product detect skipped:`, error);
+      meta.productName = resolvedProductName || productDetected.name;
+      meta.productConfidence = productDetected.confidence;
+      meta.productModel = productDetected.model;
     }
+  } catch (error) {
+    console.warn(`[SceneFusion][${params.requestId}] Product detect skipped:`, error);
   }
 
   const unresolvedIndexes = clonedScenes