fix: preserve ai detail placeholder cards

components/agents/AgentGenerationWorkspaceDarkV2.tsx

@@ -1874,13 +1874,41 @@ export function AgentGenerationWorkspaceDarkV2({
       ).length,
     [skuResultCards]
   );
+  const detailGenerationExpectedCount = useMemo(() => {
+    if (
+      pendingGeneration?.modeType === "detail_generation" &&
+      Number.isFinite(pendingGeneration.expectedCount) &&
+      pendingGeneration.expectedCount > 0
+    ) {
+      return pendingGeneration.expectedCount;
+    }
+
+    const progressTotal = Number(detailGenerationProgress.total || 0);
+    if (progressTotal > 1) {
+      return Math.max(
+        detailGenerationRunResults.length,
+        Math.round((progressTotal - 1) / 2)
+      );
+    }
+
+    return detailGenerationRunResults.length;
+  }, [
+    detailGenerationProgress.total,
+    detailGenerationRunResults.length,
+    pendingGeneration?.expectedCount,
+    pendingGeneration?.modeType,
+  ]);
+  const hasDetailGenerationPlaceholderState =
+    currentResultModeType === "detail_generation" &&
+    detailGenerationExpectedCount > detailGenerationRunResults.length &&
+    (pendingGeneration?.modeType === "detail_generation" ||
+      detailGenerationProgress.status === "running" ||
+      detailGenerationProgress.status === "error");
   const gridRequestedImageCount =
     activeResultModeType === "detail_generation"
       ? Math.max(
           1,
-          pendingGeneration?.modeType === "detail_generation"
-            ? pendingGeneration.expectedCount
-            : activeResultModeUrls.length
+          detailGenerationExpectedCount || activeResultModeUrls.length
         )
       : Math.max(1, imageParams.imageCount || 1);
   const gridPendingRemainingCount =
@@ -1888,9 +1916,9 @@ export function AgentGenerationWorkspaceDarkV2({
     pendingGeneration?.modeType === "scene_generation"
       ? Math.max(pendingGeneration.expectedCount - currentSceneGeneratedUrls.length, 0)
       : activeResultModeType === "detail_generation" &&
-          pendingGeneration?.modeType === "detail_generation"
+          hasDetailGenerationPlaceholderState
         ? Math.max(
-            pendingGeneration.expectedCount - detailGenerationRunResults.length,
+            detailGenerationExpectedCount - detailGenerationRunResults.length,
             0
           )
         : 0;
@@ -1922,7 +1950,11 @@ export function AgentGenerationWorkspaceDarkV2({
           url,
           status: url
             ? ("completed" as const)
-            : gridPendingRemainingCount > 0
+            : activeResultModeType === "detail_generation" &&
+                detailGenerationProgress.status === "error" &&
+                gridPendingRemainingCount > 0
+              ? ("missing" as const)
+              : gridPendingRemainingCount > 0
               ? placeholderOffset === 0
                 ? ("generating" as const)
                 : ("queued" as const)
@@ -1930,13 +1962,19 @@ export function AgentGenerationWorkspaceDarkV2({
         };
       });
     },
-    [activeResultModeType, activeResultModeUrls, gridPendingRemainingCount, gridResultCardCount]
+    [
+      activeResultModeType,
+      activeResultModeUrls,
+      detailGenerationProgress.status,
+      gridPendingRemainingCount,
+      gridResultCardCount,
+    ]
   );
   const shouldShowGridResultSection =
     activeResultModeUrls.length > 0 ||
     ((activeResultModeType === "scene_generation" && isSceneResultModeGenerating) ||
       (activeResultModeType === "detail_generation" &&
-        isDetailGenerationResultModeGenerating));
+        (isDetailGenerationResultModeGenerating || hasDetailGenerationPlaceholderState)));
   const attachmentCount = attachments.filter(Boolean).length;
   const hasBrandModelSelection = Boolean(
     selectedBrandModel?.imageUrl || referenceImages.some((image) => image.source === "brandModel")
@@ -4511,7 +4549,7 @@ export function AgentGenerationWorkspaceDarkV2({
                   isDetailAiGenerationMethod &&
                   activeResultModeType === currentResultModeType ? (
                   <div className="rounded-full bg-white/8 px-3 py-1 text-xs text-white/60">
-                    预估 {pendingGeneration?.expectedCount || detailGenerationRunResults.length || 0} 屏
+                    预估 {detailGenerationExpectedCount || 0} 屏
                   </div>
                 ) : activeResultModeType === "sku_replacement" &&
                   isSkuReplacementPreset &&
@@ -4529,6 +4567,13 @@ export function AgentGenerationWorkspaceDarkV2({
                     处理中 {Math.min(pendingGenerationProgressCount, pendingGeneration.expectedCount)}/
                     {pendingGeneration.expectedCount}
                   </div>
+                ) : activeResultModeType === "detail_generation" &&
+                  detailGenerationProgress.status === "running" &&
+                  detailGenerationExpectedCount > 0 ? (
+                  <div className="rounded-full border border-sky-400/25 bg-sky-500/[0.10] px-3 py-1 text-xs text-sky-100">
+                    处理中 {Math.min(detailGenerationRunResults.length, detailGenerationExpectedCount)}/
+                    {detailGenerationExpectedCount}
+                  </div>
                 ) : null}
               </div>
             </div>