修复：足迹页面分段失效的问题；#972 #974 所提到的问题；数据库备份中目录错误的问题；

优化：足迹页面的索引扫描性能；导出页面的消息缓存逻辑

electron/services/exportService.ts

@@ -323,7 +323,7 @@ class ExportService {
     return error
   }
 
-  setRuntimeConfig(config: { dbPath?: string; decryptKey?: string; myWxid?: string; imageXorKey?: unknown; imageAesKey?: string } | null): void {
+  setRuntimeConfig(config: { dbPath?: string; decryptKey?: string; myWxid?: string; imageXorKey?: unknown; imageAesKey?: string; resourcesPath?: string; appPath?: string; isPackaged?: boolean } | null): void {
     this.runtimeConfig = config
     imageDecryptService.setRuntimeConfig({
       dbPath: config?.dbPath,
@@ -331,6 +331,14 @@ class ExportService {
       imageXorKey: config?.imageXorKey,
       imageAesKey: config?.imageAesKey
     })
+    chatService.setRuntimeConfig({
+      dbPath: config?.dbPath,
+      decryptKey: config?.decryptKey,
+      myWxid: config?.myWxid,
+      resourcesPath: config?.resourcesPath,
+      appPath: config?.appPath,
+      isPackaged: config?.isPackaged
+    })
   }
 
   private getConfiguredDbPath(): string {
@@ -6651,7 +6659,7 @@ class ExportService {
         if (msg.localType === 34 && options.exportVoiceAsText) {
           // 使用预先转写的文字
           content = voiceTranscriptMap.get(this.getStableMessageKey(msg)) || '[语音消息 - 转文字失败]'
-        } else if (mediaItem && msg.localType === 3) {
+        } else if (mediaItem && msg.localType !== 47) {
           content = mediaItem.relativePath
         } else {
           content = this.parseMessageContent(