feat: 实现 DOCX 媒体预处理与跨端 PNG 捕获

apps/web/src/vite-env.d.ts

@@ -1,6 +1,7 @@
 /// <reference types="vite/client" />
 
 import type {
+  DocxMediaCapturePlan,
   PagedDocumentPayload,
   PagedDocumentRenderResult,
   RenderedMarkdownDocument,
@@ -96,5 +97,12 @@ declare global {
   interface Window {
     mdToPdfDesktop?: DesktopApplicationBridge;
     __mdToPdfDesktopPdf?: DesktopPdfRuntimeBridge;
+    __mdToPdfRenderDocxMedia?: (
+      payload: PagedDocumentPayload,
+      dimensions: {
+        contentWidthPx: number;
+        contentHeightPx: number;
+      }
+    ) => Promise<DocxMediaCapturePlan>;
   }
 }