feat: v0.2.0 导出差异报告 - HTML/纯文本/Markdown 三种格式

src/preload/index.ts

@@ -14,6 +14,8 @@ const api = {
     ipcRenderer.invoke('file:open', side ?? null),
   decodeBuffer: (buffer: ArrayBuffer): Promise<{ text: string; encoding: string }> =>
     ipcRenderer.invoke('file:decode-buffer', buffer),
+  saveReport: (content: string, defaultName: string): Promise<{ ok: boolean; path: string | null }> =>
+    ipcRenderer.invoke('file:save-report', content, defaultName),
   showInFolder: (filePath: string): Promise<boolean> =>
     ipcRenderer.invoke('file:show-in-folder', filePath),
   setClipboard: (text: string): Promise<boolean> =>