feat: support grok reference video mode

electron/lib/canvas.js

@@ -434,7 +434,7 @@ async function runVideo(base, llm, params) {
 
 // —— Grok 视频：独立新增接口，按 /v1/videos/generations + /v1/videos/{request_id} 调用 ——
 async function runGrokVideo(base, llm, params) {
-  const model = params.model || "grok-imagine-video";
+  let model = params.model || "grok-imagine-video";
   const prompt = (params.prompt || "").trim();
   if (!prompt) return { ok: false, error: "请填写 Grok 视频提示词" };
 
@@ -458,8 +458,17 @@ async function runGrokVideo(base, llm, params) {
       const img = await resolveMat(params.imageUrl || params.image);
       if (!img) return { ok: false, error: "Grok 图生视频需要首帧图：上传 / 手填公网URL / 连接上游文生图" };
       body.image = { image_url: img };
+    } else if (mode === "reference") {
+      const refs = Array.isArray(params.referenceImages) ? params.referenceImages : [];
+      const resolved = (await Promise.all(refs.map((r) => resolveMat(r)))).filter(Boolean);
+      if (!resolved.length) return { ok: false, error: "Grok 多参考图模式请至少提供 1 张参考图" };
+      model = "grok-imagine-video";
+      body.model = model;
+      body.resolution = "720p";
+      if (!body.aspect_ratio) body.aspect_ratio = params.aspectRatio || "16:9";
+      body.reference_images = resolved.map((url) => ({ url }));
     } else if (mode !== "text") {
-      return { ok: false, error: "Grok 视频新增接口只支持「文生视频」和「首帧图生视频」" };
+      return { ok: false, error: "Grok 视频新增接口只支持「文生视频」「首帧图生视频」和「多参考图」" };
     }
 
     const createUrl = joinUrl(base, params.endpointPath || "/v1/videos/generations");