fix(canvas): 画布资源恢复 - 生成结果下载或 OSS 落盘失败支持原任务重新加载

web/src/lib/canvas/canvas-generation-task-sync.ts

@@ -35,6 +35,11 @@ export function generationTaskMode(task: GenerationTask, fallback?: CanvasGenera
     return fallback || "image";
 }
 
+export function generationTaskCanReloadResource(task: GenerationTask) {
+    const mode = generationTaskMode(task);
+    return task.status === "succeeded" && (mode === "image" || mode === "video" || mode === "audio") && (Boolean(task.resultJson) || Boolean(task.outputs?.length));
+}
+
 export function imageMetadata(image: UploadedImage): CanvasNodeMetadata {
     return {
         content: image.url,
@@ -46,6 +51,7 @@ export function imageMetadata(image: UploadedImage): CanvasNodeMetadata {
         mimeType: image.mimeType,
         errorDetails: undefined,
         generationErrorCode: undefined,
+        resourceReloadAvailable: undefined,
         failedPromptFingerprint: undefined,
     };
 }
@@ -62,6 +68,7 @@ export function videoMetadata(video: UploadedFile): CanvasNodeMetadata {
         durationMs: video.durationMs,
         errorDetails: undefined,
         generationErrorCode: undefined,
+        resourceReloadAvailable: undefined,
         failedPromptFingerprint: undefined,
     };
 }
@@ -76,6 +83,7 @@ export function audioMetadata(audio: UploadedFile): CanvasNodeMetadata {
         durationMs: audio.durationMs,
         errorDetails: undefined,
         generationErrorCode: undefined,
+        resourceReloadAvailable: undefined,
         failedPromptFingerprint: undefined,
     };
 }
@@ -162,7 +170,7 @@ export async function buildGenerationTaskNodeResult(node: CanvasNodeData, task:
     return {
         ...node,
         type: CanvasNodeType.Text,
-        metadata: { ...node.metadata, content: result.text, richText: undefined, prompt, ...completedTaskMetadata(task), status: "success", errorDetails: undefined, generationErrorCode: undefined, failedPromptFingerprint: undefined },
+        metadata: { ...node.metadata, content: result.text, richText: undefined, prompt, ...completedTaskMetadata(task), status: "success", errorDetails: undefined, generationErrorCode: undefined, resourceReloadAvailable: undefined, failedPromptFingerprint: undefined },
     };
 }
 

web/src/lib/canvas/canvas-image-batch-retry.ts

@@ -20,6 +20,7 @@ export function markImageBatchRetrying(rootId: string, childIds: string[], nodes
                 ...(node.id === rootId ? { batchFailedCount: childIds.length } : {}),
                 errorDetails: undefined,
                 generationErrorCode: undefined,
+                resourceReloadAvailable: undefined,
                 failedPromptFingerprint: undefined,
             },
         };
@@ -35,6 +36,7 @@ export function restoreUnsubmittedImageBatchChild(current: CanvasNodeData, origi
             status: "error",
             errorDetails: original.metadata?.errorDetails || "重试请求未提交",
             generationErrorCode: original.metadata?.generationErrorCode,
+            resourceReloadAvailable: original.metadata?.resourceReloadAvailable,
             failedPromptFingerprint: original.metadata?.failedPromptFingerprint,
         },
     };
@@ -77,6 +79,7 @@ export function reconcileImageBatchRoot(root: CanvasNodeData, nodes: CanvasNodeD
         metadata.status = loading ? "loading" : failed ? "error" : "idle";
         metadata.errorDetails = failed?.metadata?.errorDetails;
         metadata.generationErrorCode = failed?.metadata?.generationErrorCode;
+        metadata.resourceReloadAvailable = failed?.metadata?.resourceReloadAvailable;
         metadata.failedPromptFingerprint = failed?.metadata?.failedPromptFingerprint;
     }
 

web/src/lib/canvas/canvas-project-generation.ts

@@ -170,6 +170,7 @@ export function resetGenerationTaskMetadata(metadata: CanvasNodeMetadata | undef
         status,
         errorDetails: undefined,
         generationErrorCode: undefined,
+        resourceReloadAvailable: undefined,
         failedPromptFingerprint: undefined,
     };
     delete next.taskId;