fix: route canvas add-to-chat into detail material slots

components/canvas/CanvasChatPanel.tsx

@@ -1372,6 +1372,65 @@ export function CanvasChatPanel({ chatId, initialMessages = [], onClose, onOpenF
   useEffect(() => {
     if (pendingChatAttachments.length === 0) return;
 
+    if (isDetailGenerationMode) {
+      const normalized = pendingChatAttachments
+        .filter((item) => item?.url)
+        .map((item) => ({
+          url: item.url,
+          name: item.name || "素材图",
+          contentType: item.contentType || "image/jpeg",
+        })) as PickedObjectAttachment[];
+
+      if (normalized.length > 0) {
+        let inserted = 0;
+        const targetSlotIndex = detailSlotPickerIndex;
+
+        setDetailSlots((current) => {
+          const next = [...current];
+
+          const allIndexes = DETAIL_SLOT_CONFIGS.map((_, index) => index);
+          let priorityIndexes = allIndexes;
+
+          if (targetSlotIndex !== null && targetSlotIndex >= 0 && targetSlotIndex < DETAIL_SLOT_CONFIGS.length) {
+            const role = DETAIL_SLOT_CONFIGS[targetSlotIndex]?.role;
+            const sameRoleIndexes = DETAIL_SLOT_CONFIGS.map((slot, index) =>
+              slot.role === role ? index : -1
+            ).filter((index) => index >= 0);
+            const sameRoleStart = sameRoleIndexes.indexOf(targetSlotIndex);
+            const orderedSameRole =
+              sameRoleStart >= 0 ? sameRoleIndexes.slice(sameRoleStart) : sameRoleIndexes;
+            priorityIndexes = [targetSlotIndex, ...orderedSameRole.filter((index) => index !== targetSlotIndex)];
+          }
+
+          let cursor = 0;
+          for (let i = 0; i < priorityIndexes.length && cursor < normalized.length; i += 1) {
+            const slotIdx = priorityIndexes[i]!;
+            const canReplaceActive = targetSlotIndex !== null && slotIdx === targetSlotIndex && cursor === 0;
+            if (!canReplaceActive && next[slotIdx]) continue;
+            next[slotIdx] = normalized[cursor]!;
+            cursor += 1;
+            inserted += 1;
+          }
+
+          return next;
+        });
+
+        if (inserted > 0) {
+          toast.success(
+            inserted > 1 ? `已添加 ${inserted} 张到 AI详情素材槽位` : "已添加到 AI详情素材槽位"
+          );
+          if (targetSlotIndex !== null) {
+            setDetailSlotPickerIndex(null);
+          }
+        } else {
+          toast.info("详情素材槽位已满，请先替换或清空后再添加");
+        }
+      }
+
+      clearPendingChatAttachments();
+      return;
+    }
+
     if (isVideoModel && videoFrameSlots.length > 0) {
       const slotCount = videoFrameSlots.length;
       const currentSlots: Array<PickedObjectAttachment | null> = Array.from(
@@ -1437,6 +1496,8 @@ export function CanvasChatPanel({ chatId, initialMessages = [], onClose, onOpenF
     clearPendingChatAttachments();
   }, [
     pendingChatAttachments,
+    isDetailGenerationMode,
+    detailSlotPickerIndex,
     isVideoModel,
     videoFrameSlots.length,
     attachments,