fix: 兼容 Seedream 图片旧生成入口

src/providers/image/seedream/seedream-image.provider.ts

@@ -61,20 +61,19 @@ interface SeedreamRequestOptions {
 
 /** 将统一 Generation Options 收敛成 Seedream 请求参数。 */
 function resolveSeedreamGenerationOptions(input: ImageGenerateInput): SeedreamRequestOptions {
-    const size = typeof input.generationOptions.size === 'string'
-        ? input.generationOptions.size
+    const generationOptions = input.generationOptions ?? {}
+    const size = typeof generationOptions.size === 'string'
+        ? generationOptions.size
         : input.width && input.height
             ? `${input.width}x${input.height}`
             : '2K'
-    const sequentialImageGeneration = typeof input.generationOptions.sequentialImageGeneration === 'string'
-        ? input.generationOptions.sequentialImageGeneration
+    const sequentialImageGeneration = typeof generationOptions.sequentialImageGeneration === 'string'
+        ? generationOptions.sequentialImageGeneration
         : undefined
-    const maxImages = typeof input.generationOptions.maxImages === 'number'
-        ? input.generationOptions.maxImages
-        : undefined
-    const watermark = input.generationOptions.watermark ?? false
-    const promptOptimizeMode = typeof input.generationOptions.promptOptimizeMode === 'string'
-        ? input.generationOptions.promptOptimizeMode
+    const maxImages = typeof generationOptions.maxImages === 'number' ? generationOptions.maxImages : undefined
+    const watermark = generationOptions.watermark ?? false
+    const promptOptimizeMode = typeof generationOptions.promptOptimizeMode === 'string'
+        ? generationOptions.promptOptimizeMode
         : undefined
 
     if (typeof watermark !== 'boolean') throw new Error('Seedream watermark 必须是布尔值')