fix: add focused crop reference for scale adjust

app/api/canvas/local-edit/route.ts

@@ -739,11 +739,17 @@ async function createScaleAdjustCropReferences(params: {
   const regionsForCrop = params.regions.slice(0, MAX_SCALE_ADJUST_CROP_REFERENCES);
 
   for (const region of regionsForCrop) {
-    const cropBox = expandPixelRectForCrop({
-      height: params.sourceHeight,
-      pixelRect: region.pixelRect,
-      width: params.sourceWidth,
+    const focusBox = getScaleAdjustFocusedSourceBox({
+      region,
+      sourceBox: region.pixelRect,
     });
+    const cropBox = getScaleAdjustFocusDirection(region)
+      ? focusBox
+      : expandPixelRectForCrop({
+          height: params.sourceHeight,
+          pixelRect: region.pixelRect,
+          width: params.sourceWidth,
+        });
     const cropBuffer = await sharp(params.sourceBuffer, { failOn: "none" })
       .extract(cropBox)
       .resize({
@@ -1720,7 +1726,7 @@ function buildScaleAdjustCoordinatePrompt(
   }
 
   const coordinateGuideLine = options.visualLayoutGuide
-    ? "输入图片2是一张完整画面的粗略目标布局草稿，不是输出底图。它把 OLD 源框旧主体占位洗淡，表示旧尺寸主体需要移除并自然修复背景；同时把源框中的目标主体粗略缩放/移动到 TARGET 最终占位附近，帮助你理解最终主体大小、位置和室内画面关系。请只读取 input 2 的最终几何意图，不要复制它的淡化痕迹、粗糙拼接、局部透明边、矩形补丁、亮度变化或参考图画质；最终必须以 input 1 的真实照片为唯一画面基底重新完成无缝图片编辑。"
+    ? "输入图片2是一张完整画面的粗略目标布局草稿，不是输出底图。它把 OLD 源框旧主体占位洗淡，表示旧尺寸主体必须从原尺寸位置移除并自然修复背景；同时把目标主体粗略缩放/移动到 TARGET 最终占位附近，这个缩小后的位置和尺寸是最终结果必须匹配的几何目标。请把 input 2 当成最终构图/比例的强约束：如果 input 2 中目标主体比 input 1 小，最终输出也必须明显变小，不能保留 input 1 的原尺寸主体。不要复制 input 2 的淡化痕迹、粗糙拼接、局部透明边、矩形补丁、亮度变化或参考图画质；最终必须以 input 1 的真实照片为唯一画面基底重新完成无缝图片编辑。"
     : options.markedPhotoGuide
       ? "输入图片2是一张原图浅化后的完整画面位置参考图，不是输出底图。青色虚线框表示当前主体搜索框（对应下方 OLD），蓝色实线框表示目标最终占位（对应下方 TARGET）。请用输入图片2理解主体在真实室内画面中的位置关系，但最终图不能出现任何框线、色块、标注或参考图的浅化效果。"
       : "Input image 2 is a zoomed neutral coordinate instruction map, not a photo and not output content. It enlarges the OLD and TARGET boxes so their relative scale is easy to read; use the numeric pixel coordinates below for the exact absolute position in input image 1. The OLD box/label locates the current furniture; the TARGET box/label gives the required final footprint, center, and scale factor. If the map says OLD OUTSIDE -> BG, rebuild the old full-size furniture area outside TARGET as natural background in the final photo. Read the boxes, labels, arrows, and scale text only as instructions; never output any map graphics.";
@@ -1993,7 +1999,15 @@ export async function POST(request: NextRequest) {
       annotatedFilename,
       toArrayBuffer(annotatedBuffer)
     );
-    const scaleAdjustCropReferences: ScaleAdjustCropReference[] = [];
+    const scaleAdjustCropReferences: ScaleAdjustCropReference[] =
+      isScaleAdjustOperation && useScaleAdjustVisualLayoutGuide
+        ? await createScaleAdjustCropReferences({
+            regions,
+            sourceBuffer,
+            sourceHeight,
+            sourceWidth,
+          })
+        : [];
     const prompt = isScaleAdjustOperation
       ? useScaleAdjustCoordinateGuide
         ? buildScaleAdjustCoordinatePrompt(
@@ -2136,7 +2150,7 @@ export async function POST(request: NextRequest) {
             ? useFalScaleAdjustCoordinatePrompt
               ? "fal-safe-marked-photo-box-guide-no-old-crop-v44-one-shot"
               : useScaleAdjustVisualLayoutGuide
-                ? "same-name-visual-layout-guide-v50-one-shot"
+                ? "same-name-focused-layout-crop-guide-v54-one-shot"
                 : "same-name-marked-photo-box-guide-no-old-crop-v45-one-shot"
             : "locked-plate-semantic-target-map-no-old-crop-v15"
           : undefined,