feat: 支持微信视频消息解析与播放

支持视频 XML 解析、本地文件映射与拖动播放。

修复源码乱码注释并统一 UTF-8 编码。

src/preload/index.d.ts

@@ -48,6 +48,15 @@ export type ParsedContent =
   | { type: 'share'; title: string; des?: string; url: string; appname?: string; type?: string }
   | { type: 'voip'; duration?: number; status: string; roomType?: number }
   | { type: 'image'; md5?: string; datName?: string; aeskey?: string; encrypVer?: number }
+  | {
+      type: 'video'
+      md5?: string
+      newMd5?: string
+      rawMd5?: string
+      duration?: number
+      width?: number
+      height?: number
+    }
   | {
       type: 'sticker'
       md5?: string
@@ -151,6 +160,9 @@ declare global {
         isThumb?: boolean
         filePath?: string
       }>
+      getVideo: (
+        hashes: string[]
+      ) => Promise<{ success: boolean; url?: string; poster?: string; error?: string }>
       getSticker: (
         cdnUrl?: string,
         md5?: string

src/preload/index.ts

@@ -59,6 +59,7 @@ const api = {
     sessionId?: string,
     options?: { force?: boolean }
   ) => ipcRenderer.invoke('db:getImage', imageMd5, imageDatNameOrThumb, sessionId, options),
+  getVideo: (hashes: string[]) => ipcRenderer.invoke('db:getVideo', hashes),
   getSticker: (cdnUrl?: string, md5?: string) => ipcRenderer.invoke('db:getSticker', cdnUrl, md5),
   exportGroupReport: (request: GroupReportExportRequest) =>
     ipcRenderer.invoke('report:export', request),