diff --git a/src/components/image-editor/useImageCanvasGenerationWorkflow.ts b/src/components/image-editor/useImageCanvasGenerationWorkflow.ts
index 08b539202..bd81193d1 100644
--- a/src/components/image-editor/useImageCanvasGenerationWorkflow.ts
+++ b/src/components/image-editor/useImageCanvasGenerationWorkflow.ts
@@ -121,6 +121,7 @@ import {
   readPerfectPixelOperations,
   savePerfectPixelOperation,
 } from './perfectPixelOperationStore';
+import type { CanvasGenerationDialogDraft } from './useCanvasGenerationDialogs';
 import {
   applyQueuedEditorGenerationProject,
   createEditorGenerationMediaUploadId,
@@ -913,9 +914,7 @@ type GenerationWorkflowOptions = {
   layerCounterRef: MutableRefObject<number>;
   generateDialog: GenerateDialogState | null;
   setGenerateDialog: Dispatch<SetStateAction<GenerateDialogState | null>>;
-  openCanvasGenerationDialog: (
-    dialog: Omit<CanvasGenerationDialogState, 'id'> & { id?: string },
-  ) => string;
+  openCanvasGenerationDialog: (dialog: CanvasGenerationDialogDraft) => string;
   activateCanvasGenerationDialog: (
     targetDialog: CanvasGenerationDialogState,
   ) => void;
@@ -2534,11 +2533,14 @@ export function useImageCanvasGenerationWorkflow({
         // 中文注释：保留服务端原文（例如 assetKind 校验失败）便于定位，同时附上对账结论。
         // 结果未知时必须保留 operation 快照并停在 pending-confirmation；这既不会把在途结果
         // 谎报成失败，也不会开放一条会创建新 identity 的普通重提路径。
+        //
+        // 这里曾有第三条分支「operation 已形成但 POST 未发出」。严格布局保存通道删除后它已
+        // 不可达：从 operation 赋值到 `perfectPixelPostAttempted = true` 之间只剩 Set.add、
+        // 纯函数、状态更新器，以及 `await flush(...).catch(() => undefined)` 与内部吞异常的
+        // `savePerfectPixelOperation`，没有任何语句能抛。留着它只会让人以为该失败态另有提示。
         const errorMessage = reconciledMessage
           ? `${serverMessage ? `${serverMessage} ` : ''}${reconciledMessage}请稍后继续核对，或显式重试同一操作。`
-          : perfectPixelOperation && !perfectPixelPostAttempted
-            ? `完美像素请求尚未发出：${serverMessage ?? '提交前准备失败'} 请在原占位重试，或删除占位后重来。`
-            : (serverMessage ?? '完美像素处理失败');
+          : (serverMessage ?? '完美像素处理失败');
         if (
           perfectPixelDialogId &&
           hasCanvasGenerationDialogById(perfectPixelDialogId)
@@ -2763,12 +2765,14 @@ export function useImageCanvasGenerationWorkflow({
           error instanceof Error && error.message.trim()
             ? error.message
             : '完美像素处理失败';
+        // 中文注释：文案不再按 `postAttempted` 分档——严格布局保存通道删除后，从进入 try 到
+        // `postAttempted = true` 之间已经没有任何能抛异常的语句（flush 带 `.catch`、
+        // `savePerfectPixelOperation` 内部吞异常，其余是纯函数与状态更新器），所以走到这里
+        // 时 POST 必然已经发出过。
         updateCanvasGenerationDialogById(normalizedDialogId, (current) => ({
           ...current,
           status: 'failed',
-          errorMessage: postAttempted
-            ? errorMessage
-            : `完美像素请求尚未发出：${errorMessage} 请在原占位重试同一操作。`,
+          errorMessage,
         }));
       } finally {
         releaseActiveInlineGenerationDialog(normalizedDialogId);
diff --git a/src/components/image-editor/useImageCanvasProjectPersistence.test.tsx b/src/components/image-editor/useImageCanvasProjectPersistence.test.tsx
index 72efe2db1..51b80e849 100644
--- a/src/components/image-editor/useImageCanvasProjectPersistence.test.tsx
+++ b/src/components/image-editor/useImageCanvasProjectPersistence.test.tsx
@@ -163,30 +163,6 @@ function createCompletedEditorProjectSnapshot(
   };
 }
 
-function createEmptyEditorProjectSnapshot(
-  revision = 0,
-  title = '空画布项目',
-): EditorProjectSnapshot {
-  return {
-    projectId: 'editor-project-default',
-    title,
-    canvas: {
-      canvasId: 'editor-project-default:canvas:default',
-      projectId: 'editor-project-default',
-      title: '默认画布',
-      viewport: { x: 0, y: 0, scale: 1 },
-      layers: [],
-      revision,
-      layoutStorageVersion: 0,
-      updatedAt: `2026-06-12T00:00:0${revision}.000Z`,
-    },
-    viewport: { x: 0, y: 0, scale: 1 },
-    layers: [],
-    resources: [],
-    updatedAt: `2026-06-12T00:00:0${revision}.000Z`,
-  };
-}
-
 it('merges pending geometry and dialog edits while retaining backend additions and deletions', () => {
   const authoritativeItems: EditorProjectLayerSnapshot[] = [
     {
diff --git a/src/services/image-editor/editorProjectClient.ts b/src/services/image-editor/editorProjectClient.ts
index c01531888..3135301fb 100644
--- a/src/services/image-editor/editorProjectClient.ts
+++ b/src/services/image-editor/editorProjectClient.ts
@@ -581,11 +581,6 @@ export type EditorProjectLayoutSaveInput = {
   expectedRevision: number;
 };
 
-export type EditorProjectLayoutSaveOptions = {
-  signal?: AbortSignal;
-  deadlineAt?: number;
-};
-
 export type EditorProjectLayoutSaveResult = {
   projectId: string;
   canvasId: string;
@@ -820,29 +815,23 @@ export async function deleteEditorProject(projectId: string) {
   return response.deletedProjectId;
 }
 
+// 中文注释：这里曾接受第三参数（调用方注入的 `signal` / `deadlineAt`），只服务于已删除的
+// 严格布局保存通道；该通道删除后全部调用点都只传两个参数，注入分支恒不生效。一并摘掉，
+// 免得后来者以为调用方还能控制这次保存的取消与截止。
 export async function saveEditorProjectLayout(
   projectId: string,
   input: EditorProjectLayoutSaveInput,
-  options: EditorProjectLayoutSaveOptions = {},
 ) {
-  const deadlineAt =
-    typeof options.deadlineAt === 'number' &&
-    Number.isFinite(options.deadlineAt)
-      ? options.deadlineAt
-      : Date.now() + 60_000;
   return requestJson<EditorProjectLayoutSaveResponse>(
     `${EDITOR_PROJECT_API_BASE}/${encodeURIComponent(projectId)}`,
-    {
-      ...jsonRequest('PATCH', {
-        viewport: input.viewport,
-        layers: input.layers,
-        expectedRevision: input.expectedRevision,
-      }),
-      ...(options.signal ? { signal: options.signal } : {}),
-    },
+    jsonRequest('PATCH', {
+      viewport: input.viewport,
+      layers: input.layers,
+      expectedRevision: input.expectedRevision,
+    }),
     '保存图片画布工程失败',
     // 布局保存会被生成提交链同步等待，必须连鉴权恢复和响应体读取一起有界。
-    { deadlineAt },
+    { deadlineAt: Date.now() + 60_000 },
   );
 }