perf: reduce chained array traversal

src/features/image-workbench/ImageWorkbenchPage.tsx

@@ -81,6 +81,20 @@ const CAMERA_EFFECT_PRESETS = [
   { key: "hdr", label: "HDR", prompt: "HDR高动态范围，明暗细节丰富，色彩饱和" },
 ] as const;
 
+const CAMERA_EFFECT_PROMPT_BY_KEY = new Map<string, string>(
+  CAMERA_EFFECT_PRESETS.map((effect) => [effect.key, effect.prompt]),
+);
+
+function getCameraEffectsPrompt(effectKeys: Set<string>): string {
+  if (effectKeys.size === 0) return "";
+  const prompts: string[] = [];
+  for (const key of effectKeys) {
+    const prompt = CAMERA_EFFECT_PROMPT_BY_KEY.get(key);
+    if (prompt) prompts.push(prompt);
+  }
+  return prompts.join("，");
+}
+
 function shotScaleToZoom(shotScale: number): number {
   const map: Record<number, number> = { 1: 24, 2: 28, 3: 32, 4: 35, 5: 40, 6: 50, 7: 60, 8: 75, 9: 85, 10: 100 };
   return map[Math.round(Math.max(1, Math.min(10, shotScale)))] || 40;
@@ -400,9 +414,7 @@ function ImageWorkbenchPage({ initialTool = "workbench", onOpenMore, onSelectVie
       const refUrls = await uploadReferenceImages([cameraImage]);
       const model = "wan2.7-image-pro";
       const cameraDesc = `镜头预设: ${cameraPreset}, 方向: ${cameraDirection}, 水平: ${cameraHorizontal}°, 垂直: ${cameraVertical}°, 倾斜: ${cameraRoll}°, 焦距: ${cameraZoom}mm`;
-      const effectsDesc = cameraEffects.size > 0
-        ? Array.from(cameraEffects).map((key) => CAMERA_EFFECT_PRESETS.find((e) => e.key === key)?.prompt).filter(Boolean).join("，")
-        : "";
+      const effectsDesc = getCameraEffectsPrompt(cameraEffects);
       const fullPrompt = cameraPromptEnabled && cameraPrompt.trim()
         ? `${cameraDesc}${effectsDesc ? `。视觉效果: ${effectsDesc}` : ""}。${cameraPrompt}`
         : `${cameraDesc}${effectsDesc ? `。视觉效果: ${effectsDesc}` : ""}。保持人物和场景一致，按照镜头参数重新构图。`;