fix: preserve manual detail cutlines

components/agents/AgentDetailReferenceStitchDialog.tsx

@@ -197,6 +197,12 @@ export function AgentDetailReferenceStitchDialog({
   const [warningText, setWarningText] = useState<string | null>(null);
   const [previewImageLoadFailed, setPreviewImageLoadFailed] = useState(false);
   const [passthroughSegmentIndexes, setPassthroughSegmentIndexes] = useState<number[]>([]);
+  const hasManualCutLineChangesRef = useRef(false);
+  const onPreparedRef = useRef(onPrepared);
+
+  useEffect(() => {
+    onPreparedRef.current = onPrepared;
+  }, [onPrepared]);
 
   const validCards = useMemo(
     () =>
@@ -210,8 +216,8 @@ export function AgentDetailReferenceStitchDialog({
     () =>
       validCards
         .map(
-          (card) =>
-            `${card.id}::${String(card.imageUrl || "").trim()}::${String(card.previewUrl || "").trim()}::${card.width || ""}x${card.height || ""}`
+          (card, index) =>
+            `${card.id}::${String(card.imageUrl || "").trim()}::${card.sortOrder ?? index}`
         )
         .join("|"),
     [validCards]
@@ -265,12 +271,14 @@ export function AgentDetailReferenceStitchDialog({
       setWarningText(null);
       setPreviewImageLoadFailed(false);
       setPassthroughSegmentIndexes([]);
+      hasManualCutLineChangesRef.current = false;
       return;
     }
 
     if (setupCards.length === 0) {
       setSnapshot(null);
       setCutLines([]);
+      hasManualCutLineChangesRef.current = false;
       setIsLoading(false);
       setIsPreparing(false);
       setErrorText(`当前没有可拼合的${sourceLabel}`);
@@ -282,6 +290,7 @@ export function AgentDetailReferenceStitchDialog({
 
     setSnapshot(optimisticSnapshot);
     setCutLines(optimisticSnapshot.defaultCutLines);
+    hasManualCutLineChangesRef.current = false;
     setPassthroughSegmentIndexes([]);
     setErrorText(null);
     setWarningText(null);
@@ -341,12 +350,15 @@ export function AgentDetailReferenceStitchDialog({
         };
         setSnapshot(preciseSnapshot);
         setPreviewImageLoadFailed(!previewUrl);
-        setCutLines((current) =>
-          areCutLinesEqual(current, optimisticSnapshot.defaultCutLines)
+        setCutLines((current) => {
+          if (hasManualCutLineChangesRef.current) {
+            return scaleCutLines(current, optimisticSnapshot.height, height);
+          }
+          return areCutLinesEqual(current, optimisticSnapshot.defaultCutLines)
             ? defaultCutLines
-            : scaleCutLines(current, optimisticSnapshot.height, height)
-        );
-        if (onPrepared) {
+            : scaleCutLines(current, optimisticSnapshot.height, height);
+        });
+        if (onPreparedRef.current) {
           const dimensionByCardId = new Map(
             sourceSegments.map((segment) => [
               segment.card.id,
@@ -357,7 +369,7 @@ export function AgentDetailReferenceStitchDialog({
               },
             ])
           );
-          onPrepared(
+          onPreparedRef.current(
             setupCards.map((card, index) => {
               const dimensions = dimensionByCardId.get(card.id);
               return {
@@ -394,7 +406,7 @@ export function AgentDetailReferenceStitchDialog({
     return () => {
       cancelled = true;
     };
-  }, [onPrepared, open, setupCards, sourceLabel]);
+  }, [open, setupCards, sourceLabel]);
 
   useEffect(() => {
     const validIndexes = new Set(sliceSegments.map((segment) => segment.index));
@@ -532,10 +544,12 @@ export function AgentDetailReferenceStitchDialog({
 
   const handleResetCutLines = useCallback(() => {
     if (!snapshot) return;
+    hasManualCutLineChangesRef.current = false;
     setCutLines(snapshot.defaultCutLines);
   }, [snapshot]);
 
   const handleClearCutLines = useCallback(() => {
+    hasManualCutLineChangesRef.current = true;
     setCutLines([]);
     setDraggingLineIndex(null);
     setIsAddingCutLine(false);
@@ -543,6 +557,7 @@ export function AgentDetailReferenceStitchDialog({
   }, []);
 
   const handleRemoveCutLine = useCallback((index: number) => {
+    hasManualCutLineChangesRef.current = true;
     setCutLines((current) => current.filter((_, currentIndex) => currentIndex !== index));
   }, []);
 
@@ -573,6 +588,7 @@ export function AgentDetailReferenceStitchDialog({
         toast.error("当前位置无法添加切线，请换一个位置");
         return;
       }
+      hasManualCutLineChangesRef.current = true;
       setCutLines((current) => [...current, Math.round(nextY)].sort((left, right) => left - right));
       setIsAddingCutLine(false);
       setPreviewCutLineY(null);
@@ -589,6 +605,7 @@ export function AgentDetailReferenceStitchDialog({
       } catch {
         // Older browsers may not support pointer capture for this target.
       }
+      hasManualCutLineChangesRef.current = true;
       setDraggingLineIndex(index);
     },
     []