图片解密重构 #527 #522 #696；修复 #752

2026-04-20 12:51:02 +08:00 · 2026-04-14 23:02:06 +08:00
parent 9af1a0ad56
commit 419a53d6ec
27 changed files with 1161 additions and 1247 deletions
--- a/.github/workflows/dev-daily-fixed.yml
+++ b/.github/workflows/dev-daily-fixed.yml
@@ -93,7 +93,6 @@ jobs:
        with:
          node-version: 24
          cache: "npm"
-
      - name: Install Dependencies
        run: npm install

@@ -160,7 +159,6 @@ jobs:
        with:
          node-version: 24
          cache: "npm"
-
      - name: Install Dependencies
        run: npm install

@@ -208,7 +206,6 @@ jobs:
        with:
          node-version: 24
          cache: "npm"
-
      - name: Install Dependencies
        run: npm install

@@ -256,7 +253,6 @@ jobs:
        with:
          node-version: 24
          cache: "npm"
-
      - name: Install Dependencies
        run: npm install

--- a/.github/workflows/preview-nightly-main.yml
+++ b/.github/workflows/preview-nightly-main.yml
@@ -120,7 +120,6 @@ jobs:
        with:
          node-version: 24
          cache: "npm"
-
      - name: Install Dependencies
        run: npm install

@@ -190,7 +189,6 @@ jobs:
        with:
          node-version: 24
          cache: "npm"
-
      - name: Install Dependencies
        run: npm install

@@ -242,7 +240,6 @@ jobs:
        with:
          node-version: 24
          cache: "npm"
-
      - name: Install Dependencies
        run: npm install

@@ -294,7 +291,6 @@ jobs:
        with:
          node-version: 24
          cache: "npm"
-
      - name: Install Dependencies
        run: npm install

--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -27,7 +27,6 @@ jobs:
        with:
          node-version: 24
          cache: "npm"
-
      - name: Install Dependencies
        run: npm install

@@ -84,7 +83,6 @@ jobs:
        with:
          node-version: 24
          cache: "npm"
-
      - name: Install Dependencies
        run: npm install

@@ -140,7 +138,6 @@ jobs:
        with:
          node-version: 24
          cache: 'npm'
-
      - name: Install Dependencies
        run: npm install

@@ -191,7 +188,6 @@ jobs:
        with:
          node-version: 24
          cache: 'npm'
-
      - name: Install Dependencies
        run: npm install

--- a/.gitignore
+++ b/.gitignore
@@ -75,4 +75,4 @@ pnpm-lock.yaml
 wechat-research-site
 .codex
 weflow-web-offical
-Insight
+/Wedecrypt
--- a/electron/main.ts
+++ b/electron/main.ts
@@ -2636,13 +2636,24 @@ function registerIpcHandlers() {
  // 私聊克隆


-  ipcMain.handle('image:decrypt', async (_, payload: { sessionId?: string; imageMd5?: string; imageDatName?: string; force?: boolean }) => {
+  ipcMain.handle('image:decrypt', async (_, payload: {
+    sessionId?: string
+    imageMd5?: string
+    imageDatName?: string
+    createTime?: number
+    force?: boolean
+    preferFilePath?: boolean
+    hardlinkOnly?: boolean
+  }) => {
    return imageDecryptService.decryptImage(payload)
  })
  ipcMain.handle('image:resolveCache', async (_, payload: {
    sessionId?: string
    imageMd5?: string
    imageDatName?: string
+    createTime?: number
+    preferFilePath?: boolean
+    hardlinkOnly?: boolean
    disableUpdateCheck?: boolean
    allowCacheIndex?: boolean
  }) => {
@@ -2652,13 +2663,15 @@ function registerIpcHandlers() {
    'image:resolveCacheBatch',
    async (
      _,
-      payloads: Array<{ sessionId?: string; imageMd5?: string; imageDatName?: string }>,
-      options?: { disableUpdateCheck?: boolean; allowCacheIndex?: boolean }
+      payloads: Array<{ sessionId?: string; imageMd5?: string; imageDatName?: string; createTime?: number; preferFilePath?: boolean; hardlinkOnly?: boolean }>,
+      options?: { disableUpdateCheck?: boolean; allowCacheIndex?: boolean; preferFilePath?: boolean; hardlinkOnly?: boolean }
    ) => {
      const list = Array.isArray(payloads) ? payloads : []
      const rows = await Promise.all(list.map(async (payload) => {
        return imageDecryptService.resolveCachedImage({
          ...payload,
+          preferFilePath: payload.preferFilePath ?? options?.preferFilePath === true,
+          hardlinkOnly: payload.hardlinkOnly ?? options?.hardlinkOnly === true,
          disableUpdateCheck: options?.disableUpdateCheck === true,
          allowCacheIndex: options?.allowCacheIndex !== false
        })
@@ -2670,7 +2683,7 @@ function registerIpcHandlers() {
    'image:preload',
    async (
      _,
-      payloads: Array<{ sessionId?: string; imageMd5?: string; imageDatName?: string }>,
+      payloads: Array<{ sessionId?: string; imageMd5?: string; imageDatName?: string; createTime?: number }>,
      options?: { allowDecrypt?: boolean; allowCacheIndex?: boolean }
    ) => {
    imagePreloadService.enqueue(payloads || [], options)
--- a/electron/preload.ts
+++ b/electron/preload.ts
@@ -286,22 +286,25 @@ contextBridge.exposeInMainWorld('electronAPI', {

  // 图片解密
  image: {
-    decrypt: (payload: { sessionId?: string; imageMd5?: string; imageDatName?: string; force?: boolean }) =>
+    decrypt: (payload: { sessionId?: string; imageMd5?: string; imageDatName?: string; createTime?: number; force?: boolean; preferFilePath?: boolean; hardlinkOnly?: boolean }) =>
      ipcRenderer.invoke('image:decrypt', payload),
    resolveCache: (payload: {
      sessionId?: string
      imageMd5?: string
      imageDatName?: string
+      createTime?: number
+      preferFilePath?: boolean
+      hardlinkOnly?: boolean
      disableUpdateCheck?: boolean
      allowCacheIndex?: boolean
    }) =>
      ipcRenderer.invoke('image:resolveCache', payload),
    resolveCacheBatch: (
-      payloads: Array<{ sessionId?: string; imageMd5?: string; imageDatName?: string }>,
-      options?: { disableUpdateCheck?: boolean; allowCacheIndex?: boolean }
+      payloads: Array<{ sessionId?: string; imageMd5?: string; imageDatName?: string; createTime?: number; preferFilePath?: boolean; hardlinkOnly?: boolean }>,
+      options?: { disableUpdateCheck?: boolean; allowCacheIndex?: boolean; preferFilePath?: boolean; hardlinkOnly?: boolean }
    ) => ipcRenderer.invoke('image:resolveCacheBatch', payloads, options),
    preload: (
-      payloads: Array<{ sessionId?: string; imageMd5?: string; imageDatName?: string }>,
+      payloads: Array<{ sessionId?: string; imageMd5?: string; imageDatName?: string; createTime?: number }>,
      options?: { allowDecrypt?: boolean; allowCacheIndex?: boolean }
    ) => ipcRenderer.invoke('image:preload', payloads, options),
    onUpdateAvailable: (callback: (payload: { cacheKey: string; imageMd5?: string; imageDatName?: string }) => void) => {
--- a/electron/services/chatService.ts
+++ b/electron/services/chatService.ts
@@ -486,7 +486,7 @@ class ChatService {
    return Number.isFinite(parsed) ? parsed : null
  }

-  private toCodeOnlyMessage(rawMessage?: string, fallbackCode = -3999): string {
+  private toCodeOnlyMessage(rawMessage?: string | null, fallbackCode = -3999): string {
    const code = this.extractErrorCode(rawMessage) ?? fallbackCode
    return `错误码: ${code}`
  }
@@ -7105,13 +7105,23 @@ class ChatService {
        return { success: false, error: '未找到消息' }
      }
      const msg = msgResult.message
+      const rawImageInfo = msg.rawContent ? this.parseImageInfo(msg.rawContent) : {}
+      const imageMd5 = msg.imageMd5 || rawImageInfo.md5
+      const imageDatName = msg.imageDatName

-      // 2. 使用 imageDecryptService 解密图片
+      if (!imageMd5 && !imageDatName) {
+        return { success: false, error: '图片缺少 md5/datName，无法定位原文件' }
+      }
+
+      // 2. 使用 imageDecryptService 解密图片（仅使用真实图片标识）
      const result = await this.imageDecryptService.decryptImage({
        sessionId,
-        imageMd5: msg.imageMd5,
-        imageDatName: msg.imageDatName || String(msg.localId),
-        force: false
+        imageMd5,
+        imageDatName,
+        createTime: msg.createTime,
+        force: false,
+        preferFilePath: true,
+        hardlinkOnly: true
      })

      if (!result.success || !result.localPath) {
@@ -8358,7 +8368,6 @@ class ChatService {
        if (normalized.length === 0) return []

        // 规避 native options_json 可能存在的固定缓冲上限：按 payload 字节安全分块。
-        // 这不是降级或裁剪范围，而是完整遍历所有群并做结果合并。
        const maxBytesRaw = Number(process.env.WEFLOW_MY_FOOTPRINT_GROUP_OPTIONS_MAX_BYTES || 900)
        const maxBytes = Number.isFinite(maxBytesRaw) && maxBytesRaw >= 512
          ? Math.floor(maxBytesRaw)
@@ -9325,7 +9334,7 @@ class ChatService {
      latest_ts: this.toSafeInt(item?.latest_ts, 0),
      anchor_local_id: this.toSafeInt(item?.anchor_local_id, 0),
      anchor_create_time: this.toSafeInt(item?.anchor_create_time, 0)
-    })).filter((item) => item.session_id)
+    })).filter((item: MyFootprintPrivateSession) => item.session_id)

    const private_segments: MyFootprintPrivateSegment[] = privateSegmentsRaw.map((item: any) => ({
      session_id: String(item?.session_id || '').trim(),
@@ -9344,7 +9353,7 @@ class ChatService {
      anchor_create_time: this.toSafeInt(item?.anchor_create_time, 0),
      displayName: String(item?.displayName || '').trim() || undefined,
      avatarUrl: String(item?.avatarUrl || '').trim() || undefined
-    })).filter((item) => item.session_id && item.start_ts > 0)
+    })).filter((item: MyFootprintPrivateSegment) => item.session_id && item.start_ts > 0)

    const mentions: MyFootprintMentionItem[] = mentionsRaw.map((item: any) => ({
      session_id: String(item?.session_id || '').trim(),
@@ -9353,13 +9362,13 @@ class ChatService {
      sender_username: String(item?.sender_username || '').trim(),
      message_content: String(item?.message_content || ''),
      source: String(item?.source || '')
-    })).filter((item) => item.session_id)
+    })).filter((item: MyFootprintMentionItem) => item.session_id)

    const mention_groups: MyFootprintMentionGroup[] = mentionGroupsRaw.map((item: any) => ({
      session_id: String(item?.session_id || '').trim(),
      count: this.toSafeInt(item?.count, 0),
      latest_ts: this.toSafeInt(item?.latest_ts, 0)
-    })).filter((item) => item.session_id)
+    })).filter((item: MyFootprintMentionGroup) => item.session_id)

    const diagnostics: MyFootprintDiagnostics = {
      truncated: Boolean(diagnosticsRaw.truncated),
--- a/electron/services/config.ts
+++ b/electron/services/config.ts
@@ -42,7 +42,6 @@ interface ConfigSchema {
  autoTranscribeVoice: boolean
  transcribeLanguages: string[]
  exportDefaultConcurrency: number
-  exportDefaultImageDeepSearchOnMiss: boolean
  analyticsExcludedUsernames: string[]

  // 安全相关
@@ -165,7 +164,6 @@ export class ConfigService {
      autoTranscribeVoice: false,
      transcribeLanguages: ['zh'],
      exportDefaultConcurrency: 4,
-      exportDefaultImageDeepSearchOnMiss: true,
      analyticsExcludedUsernames: [],
      authEnabled: false,
      authPassword: '',
--- a/electron/services/exportService.ts
+++ b/electron/services/exportService.ts
@@ -108,7 +108,6 @@ export interface ExportOptions {
  sessionNameWithTypePrefix?: boolean
  displayNamePreference?: 'group-nickname' | 'remark' | 'nickname'
  exportConcurrency?: number
-  imageDeepSearchOnMiss?: boolean
 }

 const TXT_COLUMN_DEFINITIONS: Array<{ id: string; label: string }> = [
@@ -1092,8 +1091,7 @@ class ExportService {
  private getImageMissingRunCacheKey(
    sessionId: string,
    imageMd5?: unknown,
-    imageDatName?: unknown,
-    imageDeepSearchOnMiss = true
+    imageDatName?: unknown
  ): string | null {
    const normalizedSessionId = String(sessionId || '').trim()
    const normalizedImageMd5 = String(imageMd5 || '').trim().toLowerCase()
@@ -1105,8 +1103,7 @@ class ExportService {
    const secondaryToken = normalizedImageMd5 && normalizedImageDatName && normalizedImageDatName !== normalizedImageMd5
      ? normalizedImageDatName
      : ''
-    const lookupMode = imageDeepSearchOnMiss ? 'deep' : 'hardlink'
-    return `${lookupMode}\u001f${normalizedSessionId}\u001f${primaryToken}\u001f${secondaryToken}`
+    return `${normalizedSessionId}\u001f${primaryToken}\u001f${secondaryToken}`
  }

  private normalizeEmojiMd5(value: unknown): string | undefined {
@@ -3583,7 +3580,6 @@ class ExportService {
      exportVoiceAsText?: boolean
      includeVideoPoster?: boolean
      includeVoiceWithTranscript?: boolean
-      imageDeepSearchOnMiss?: boolean
      dirCache?: Set<string>
    }
  ): Promise<MediaExportItem | null> {
@@ -3596,8 +3592,7 @@ class ExportService {
        sessionId,
        mediaRootDir,
        mediaRelativePrefix,
-        options.dirCache,
-        options.imageDeepSearchOnMiss !== false
+        options.dirCache
      )
      if (result) {
      }
@@ -3654,8 +3649,7 @@ class ExportService {
    sessionId: string,
    mediaRootDir: string,
    mediaRelativePrefix: string,
-    dirCache?: Set<string>,
-    imageDeepSearchOnMiss = true
+    dirCache?: Set<string>
  ): Promise<MediaExportItem | null> {
    try {
      const imagesDir = path.join(mediaRootDir, mediaRelativePrefix, 'images')
@@ -3675,8 +3669,7 @@ class ExportService {
      const missingRunCacheKey = this.getImageMissingRunCacheKey(
        sessionId,
        imageMd5,
-        imageDatName,
-        imageDeepSearchOnMiss
+        imageDatName
      )
      if (missingRunCacheKey && this.mediaRunMissingImageKeys.has(missingRunCacheKey)) {
        return null
@@ -3686,25 +3679,20 @@ class ExportService {
        sessionId,
        imageMd5,
        imageDatName,
+        createTime: msg.createTime,
        force: true,  // 导出优先高清，失败再回退缩略图
        preferFilePath: true,
-        hardlinkOnly: !imageDeepSearchOnMiss
+        hardlinkOnly: true
      })

      if (!result.success || !result.localPath) {
        console.log(`[Export] 图片解密失败 (localId=${msg.localId}): imageMd5=${imageMd5}, imageDatName=${imageDatName}, error=${result.error || '未知'}`)
-        if (!imageDeepSearchOnMiss) {
-          console.log(`[Export] 未命中 hardlink（已关闭缺图深度搜索）→ 将显示 [图片] 占位符`)
-          if (missingRunCacheKey) {
-            this.mediaRunMissingImageKeys.add(missingRunCacheKey)
-          }
-          return null
-        }
        // 尝试获取缩略图
        const thumbResult = await imageDecryptService.resolveCachedImage({
          sessionId,
          imageMd5,
          imageDatName,
+          createTime: msg.createTime,
          preferFilePath: true
        })
        if (thumbResult.success && thumbResult.localPath) {
@@ -5302,7 +5290,6 @@ class ExportService {
              maxFileSizeMb: options.maxFileSizeMb,
              exportVoiceAsText: options.exportVoiceAsText,
              includeVideoPoster: options.format === 'html',
-              imageDeepSearchOnMiss: options.imageDeepSearchOnMiss,
              dirCache: mediaDirCache
            })
            mediaCache.set(mediaKey, mediaItem)
@@ -5813,7 +5800,6 @@ class ExportService {
              maxFileSizeMb: options.maxFileSizeMb,
              exportVoiceAsText: options.exportVoiceAsText,
              includeVideoPoster: options.format === 'html',
-              imageDeepSearchOnMiss: options.imageDeepSearchOnMiss,
              dirCache: mediaDirCache
            })
            mediaCache.set(mediaKey, mediaItem)
@@ -6685,7 +6671,6 @@ class ExportService {
              maxFileSizeMb: options.maxFileSizeMb,
              exportVoiceAsText: options.exportVoiceAsText,
              includeVideoPoster: options.format === 'html',
-              imageDeepSearchOnMiss: options.imageDeepSearchOnMiss,
              dirCache: mediaDirCache
            })
            mediaCache.set(mediaKey, mediaItem)
@@ -7436,7 +7421,6 @@ class ExportService {
              maxFileSizeMb: options.maxFileSizeMb,
              exportVoiceAsText: options.exportVoiceAsText,
              includeVideoPoster: options.format === 'html',
-              imageDeepSearchOnMiss: options.imageDeepSearchOnMiss,
              dirCache: mediaDirCache
            })
            mediaCache.set(mediaKey, mediaItem)
@@ -7816,7 +7800,6 @@ class ExportService {
              maxFileSizeMb: options.maxFileSizeMb,
              exportVoiceAsText: options.exportVoiceAsText,
              includeVideoPoster: options.format === 'html',
-              imageDeepSearchOnMiss: options.imageDeepSearchOnMiss,
              dirCache: mediaDirCache
            })
            mediaCache.set(mediaKey, mediaItem)
@@ -8240,7 +8223,6 @@ class ExportService {
              includeVideoPoster: options.format === 'html',
              includeVoiceWithTranscript: true,
              exportVideos: options.exportVideos,
-              imageDeepSearchOnMiss: options.imageDeepSearchOnMiss,
              dirCache: mediaDirCache
            })
            mediaCache.set(mediaKey, mediaItem)
--- a/electron/services/httpService.ts
+++ b/electron/services/httpService.ts
@@ -1208,6 +1208,30 @@ class HttpService {
    const sessionDir = path.join(this.getApiMediaExportPath(), this.sanitizeFileName(talker, 'session'))
    this.ensureDir(sessionDir)

+    // 预热图片 hardlink 索引，减少逐条导出时的查找开销
+    if (options.exportImages) {
+      const imageMd5Set = new Set<string>()
+      for (const msg of messages) {
+        if (msg.localType !== 3) continue
+        const imageMd5 = String(msg.imageMd5 || '').trim().toLowerCase()
+        if (imageMd5) {
+          imageMd5Set.add(imageMd5)
+          continue
+        }
+        const imageDatName = String(msg.imageDatName || '').trim().toLowerCase()
+        if (/^[a-f0-9]{32}$/i.test(imageDatName)) {
+          imageMd5Set.add(imageDatName)
+        }
+      }
+      if (imageMd5Set.size > 0) {
+        try {
+          await imageDecryptService.preloadImageHardlinkMd5s(Array.from(imageMd5Set))
+        } catch {
+          // ignore preload failures
+        }
+      }
+    }
+
    for (const msg of messages) {
      const exported = await this.exportMediaForMessage(msg, talker, sessionDir, options)
      if (exported) {
@@ -1230,27 +1254,50 @@ class HttpService {
          sessionId: talker,
          imageMd5: msg.imageMd5,
          imageDatName: msg.imageDatName,
-          force: true
+          createTime: msg.createTime,
+          force: true,
+          preferFilePath: true,
+          hardlinkOnly: true
        })
-        if (result.success && result.localPath) {
-          let imagePath = result.localPath
+
+        let imagePath = result.success ? result.localPath : undefined
+        if (!imagePath) {
+          try {
+            const cached = await imageDecryptService.resolveCachedImage({
+              sessionId: talker,
+              imageMd5: msg.imageMd5,
+              imageDatName: msg.imageDatName,
+              createTime: msg.createTime,
+              preferFilePath: true,
+              hardlinkOnly: true
+            })
+            if (cached.success && cached.localPath) {
+              imagePath = cached.localPath
+            }
+          } catch {
+            // ignore resolve failures
+          }
+        }
+
+        if (imagePath) {
          if (imagePath.startsWith('data:')) {
            const base64Match = imagePath.match(/^data:[^;]+;base64,(.+)$/)
-            if (base64Match) {
-              const imageBuffer = Buffer.from(base64Match[1], 'base64')
-              const ext = this.detectImageExt(imageBuffer)
-              const fileBase = this.sanitizeFileName(msg.imageMd5 || msg.imageDatName || `image_${msg.localId}`, `image_${msg.localId}`)
-              const fileName = `${fileBase}${ext}`
-              const targetDir = path.join(sessionDir, 'images')
-              const fullPath = path.join(targetDir, fileName)
-              this.ensureDir(targetDir)
-              if (!fs.existsSync(fullPath)) {
-                fs.writeFileSync(fullPath, imageBuffer)
-              }
-              const relativePath = `${this.sanitizeFileName(talker, 'session')}/images/${fileName}`
-              return { kind: 'image', fileName, fullPath, relativePath }
+            if (!base64Match) return null
+            const imageBuffer = Buffer.from(base64Match[1], 'base64')
+            const ext = this.detectImageExt(imageBuffer)
+            const fileBase = this.sanitizeFileName(msg.imageMd5 || msg.imageDatName || `image_${msg.localId}`, `image_${msg.localId}`)
+            const fileName = `${fileBase}${ext}`
+            const targetDir = path.join(sessionDir, 'images')
+            const fullPath = path.join(targetDir, fileName)
+            this.ensureDir(targetDir)
+            if (!fs.existsSync(fullPath)) {
+              fs.writeFileSync(fullPath, imageBuffer)
            }
-          } else if (fs.existsSync(imagePath)) {
+            const relativePath = `${this.sanitizeFileName(talker, 'session')}/images/${fileName}`
+            return { kind: 'image', fileName, fullPath, relativePath }
+          }
+
+          if (fs.existsSync(imagePath)) {
            const imageBuffer = fs.readFileSync(imagePath)
            const ext = this.detectImageExt(imageBuffer)
            const fileBase = this.sanitizeFileName(msg.imageMd5 || msg.imageDatName || `image_${msg.localId}`, `image_${msg.localId}`)
--- a/electron/services/imageDecryptService.ts
+++ b/electron/services/imageDecryptService.ts
--- a/electron/services/imagePreloadService.ts
+++ b/electron/services/imagePreloadService.ts
@@ -4,6 +4,7 @@ type PreloadImagePayload = {
  sessionId?: string
  imageMd5?: string
  imageDatName?: string
+  createTime?: number
 }

 type PreloadOptions = {
@@ -74,6 +75,9 @@ export class ImagePreloadService {
        sessionId: task.sessionId,
        imageMd5: task.imageMd5,
        imageDatName: task.imageDatName,
+        createTime: task.createTime,
+        preferFilePath: true,
+        hardlinkOnly: true,
        disableUpdateCheck: !task.allowDecrypt,
        allowCacheIndex: task.allowCacheIndex
      })
@@ -82,7 +86,10 @@ export class ImagePreloadService {
      await imageDecryptService.decryptImage({
        sessionId: task.sessionId,
        imageMd5: task.imageMd5,
-        imageDatName: task.imageDatName
+        imageDatName: task.imageDatName,
+        createTime: task.createTime,
+        preferFilePath: true,
+        hardlinkOnly: true
      })
    } catch {
      // ignore preload failures
--- a/electron/services/nativeImageDecrypt.ts
+++ b/electron/services/nativeImageDecrypt.ts
@@ -0,0 +1,110 @@
+import { existsSync } from 'fs'
+import { join } from 'path'
+
+type NativeDecryptResult = {
+  data: Buffer
+  ext: string
+  isWxgf?: boolean
+  is_wxgf?: boolean
+}
+
+type NativeAddon = {
+  decryptDatNative: (inputPath: string, xorKey: number, aesKey?: string) => NativeDecryptResult
+}
+
+let cachedAddon: NativeAddon | null | undefined
+
+function shouldEnableNative(): boolean {
+  return process.env.WEFLOW_IMAGE_NATIVE !== '0'
+}
+
+function expandAsarCandidates(filePath: string): string[] {
+  if (!filePath.includes('app.asar') || filePath.includes('app.asar.unpacked')) {
+    return [filePath]
+  }
+  return [filePath.replace('app.asar', 'app.asar.unpacked'), filePath]
+}
+
+function getPlatformDir(): string {
+  if (process.platform === 'win32') return 'win32'
+  if (process.platform === 'darwin') return 'macos'
+  if (process.platform === 'linux') return 'linux'
+  return process.platform
+}
+
+function getArchDir(): string {
+  if (process.arch === 'x64') return 'x64'
+  if (process.arch === 'arm64') return 'arm64'
+  return process.arch
+}
+
+function getAddonCandidates(): string[] {
+  const platformDir = getPlatformDir()
+  const archDir = getArchDir()
+  const cwd = process.cwd()
+  const fileNames = [
+    `weflow-image-native-${platformDir}-${archDir}.node`
+  ]
+  const roots = [
+    join(cwd, 'resources', 'wedecrypt', platformDir, archDir),
+    ...(process.resourcesPath
+      ? [
+          join(process.resourcesPath, 'resources', 'wedecrypt', platformDir, archDir),
+          join(process.resourcesPath, 'wedecrypt', platformDir, archDir)
+        ]
+      : [])
+  ]
+  const candidates = roots.flatMap((root) => fileNames.map((name) => join(root, name)))
+  return Array.from(new Set(candidates.flatMap(expandAsarCandidates)))
+}
+
+function loadAddon(): NativeAddon | null {
+  if (!shouldEnableNative()) return null
+  if (cachedAddon !== undefined) return cachedAddon
+
+  for (const candidate of getAddonCandidates()) {
+    if (!existsSync(candidate)) continue
+    try {
+      // eslint-disable-next-line @typescript-eslint/no-var-requires
+      const addon = require(candidate) as NativeAddon
+      if (addon && typeof addon.decryptDatNative === 'function') {
+        cachedAddon = addon
+        return addon
+      }
+    } catch {
+      // try next candidate
+    }
+  }
+
+  cachedAddon = null
+  return null
+}
+
+export function nativeAddonLocation(): string | null {
+  for (const candidate of getAddonCandidates()) {
+    if (existsSync(candidate)) return candidate
+  }
+  return null
+}
+
+export function decryptDatViaNative(
+  inputPath: string,
+  xorKey: number,
+  aesKey?: string
+): { data: Buffer; ext: string; isWxgf: boolean } | null {
+  const addon = loadAddon()
+  if (!addon) return null
+
+  try {
+    const result = addon.decryptDatNative(inputPath, xorKey, aesKey)
+    const isWxgf = Boolean(result?.isWxgf ?? result?.is_wxgf)
+    if (!result || !Buffer.isBuffer(result.data)) return null
+    const rawExt = typeof result.ext === 'string' && result.ext.trim()
+      ? result.ext.trim().toLowerCase()
+      : ''
+    const ext = rawExt ? (rawExt.startsWith('.') ? rawExt : `.${rawExt}`) : ''
+    return { data: result.data, ext, isWxgf }
+  } catch {
+    return null
+  }
+}
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,6 @@
      "version": "4.3.0",
      "hasInstallScript": true,
      "dependencies": {
-        "@vscode/sudo-prompt": "^9.3.2",
        "echarts": "^6.0.0",
        "echarts-for-react": "^3.0.2",
        "electron-store": "^11.0.2",
@@ -28,8 +27,9 @@
        "react-router-dom": "^7.14.0",
        "react-virtuoso": "^4.18.1",
        "remark-gfm": "^4.0.1",
-        "sherpa-onnx-node": "^1.12.35",
+        "sherpa-onnx-node": "^1.10.38",
        "silk-wasm": "^3.7.1",
+        "sudo-prompt": "^9.2.1",
        "wechat-emojis": "^1.0.2",
        "zustand": "^5.0.2"
      },
@@ -40,11 +40,11 @@
        "@vitejs/plugin-react": "^4.3.4",
        "electron": "^41.1.1",
        "electron-builder": "^26.8.1",
-        "sass": "^1.99.0",
+        "sass": "^1.98.0",
        "sharp": "^0.34.5",
        "typescript": "^6.0.2",
-        "vite": "^7.3.2",
-        "vite-plugin-electron": "^0.29.1",
+        "vite": "^7.0.0",
+        "vite-plugin-electron": "^0.28.8",
        "vite-plugin-electron-renderer": "^0.14.6"
      }
    },
@@ -3050,12 +3050,6 @@
        "vite": "^4.2.0 || ^5.0.0 || ^6.0.0 || ^7.0.0"
      }
    },
-    "node_modules/@vscode/sudo-prompt": {
-      "version": "9.3.2",
-      "resolved": "https://registry.npmjs.org/@vscode/sudo-prompt/-/sudo-prompt-9.3.2.tgz",
-      "integrity": "sha512-gcXoCN00METUNFeQOFJ+C9xUI0DKB+0EGMVg7wbVYRHBw2Eq3fKisDZOkRdOz3kqXRKOENMfShPOmypw1/8nOw==",
-      "license": "MIT"
-    },
    "node_modules/@xmldom/xmldom": {
      "version": "0.8.12",
      "resolved": "https://registry.npmjs.org/@xmldom/xmldom/-/xmldom-0.8.12.tgz",
@@ -9462,6 +9456,13 @@
        "inline-style-parser": "0.2.7"
      }
    },
+    "node_modules/sudo-prompt": {
+      "version": "9.2.1",
+      "resolved": "https://registry.npmjs.org/sudo-prompt/-/sudo-prompt-9.2.1.tgz",
+      "integrity": "sha512-Mu7R0g4ig9TUuGSxJavny5Rv0egCEtpZRNMrZaYS1vxkiIxGiGUwoezU3LazIQ+KE04hTrTfNPgxU5gzi7F5Pw==",
+      "deprecated": "Package no longer supported. Contact Support at https://www.npmjs.com/support for more info.",
+      "license": "MIT"
+    },
    "node_modules/sumchecker": {
      "version": "3.0.1",
      "resolved": "https://registry.npmjs.org/sumchecker/-/sumchecker-3.0.1.tgz",
@@ -10140,9 +10141,9 @@
      }
    },
    "node_modules/vite-plugin-electron": {
-      "version": "0.29.1",
-      "resolved": "https://registry.npmjs.org/vite-plugin-electron/-/vite-plugin-electron-0.29.1.tgz",
-      "integrity": "sha512-AejNed5BgHFnuw8h5puTa61C6vdP4ydbsbo/uVjH1fTdHAlCDz1+o6pDQ/scQj1udDrGvH01+vTbzQh/vMnR9w==",
+      "version": "0.28.8",
+      "resolved": "https://registry.npmjs.org/vite-plugin-electron/-/vite-plugin-electron-0.28.8.tgz",
+      "integrity": "sha512-ir+B21oSGK9j23OEvt4EXyco9xDCaF6OGFe0V/8Zc0yL2+HMyQ6mmNQEIhXsEsZCSfIowBpwQBeHH4wVsfraeg==",
      "dev": true,
      "license": "MIT",
      "peerDependencies": {
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
  },
  "repository": {
    "type": "git",
-    "url": "https://github.com/Jasonzhu1207/WeFlow"
+    "url": "https://github.com/hicccc77/WeFlow"
  },
  "//": "二改不应改变此处的作者与应用信息",
  "scripts": {
@@ -77,7 +77,7 @@
    "appId": "com.WeFlow.app",
    "publish": {
      "provider": "github",
-      "owner": "Jasonzhu1207",
+      "owner": "hicccc77",
      "repo": "WeFlow",
      "releaseType": "release"
    },
@@ -186,7 +186,8 @@
      "node_modules/sherpa-onnx-node/**/*",
      "node_modules/sherpa-onnx-*/*",
      "node_modules/sherpa-onnx-*/**/*",
-      "node_modules/ffmpeg-static/**/*"
+      "node_modules/ffmpeg-static/**/*",
+      "resources/wedecrypt/**/*.node"
    ],
    "icon": "resources/icon.icns"
  },
--- a/resources/wcdb/linux/x64/libwcdb_api.so
+++ b/resources/wcdb/linux/x64/libwcdb_api.so
--- a/resources/wcdb/macos/universal/libwcdb_api.dylib
+++ b/resources/wcdb/macos/universal/libwcdb_api.dylib
--- a/resources/wcdb/win32/arm64/wcdb_api.dll
+++ b/resources/wcdb/win32/arm64/wcdb_api.dll
--- a/resources/wcdb/win32/x64/wcdb_api.dll
+++ b/resources/wcdb/win32/x64/wcdb_api.dll
--- a/resources/wedecrypt/linux/x64/weflow-image-native-linux-x64.node
+++ b/resources/wedecrypt/linux/x64/weflow-image-native-linux-x64.node
--- a/resources/wedecrypt/macos/arm64/weflow-image-native-macos-arm64.node
+++ b/resources/wedecrypt/macos/arm64/weflow-image-native-macos-arm64.node
--- a/resources/wedecrypt/win32/arm64/weflow-image-native-win32-arm64.node
+++ b/resources/wedecrypt/win32/arm64/weflow-image-native-win32-arm64.node
--- a/resources/wedecrypt/win32/x64/weflow-image-native-win32-x64.node
+++ b/resources/wedecrypt/win32/x64/weflow-image-native-win32-x64.node
--- a/src/pages/ChatPage.tsx
+++ b/src/pages/ChatPage.tsx
@@ -154,6 +154,21 @@ function hasRenderableChatRecordName(value?: string): boolean {
  return value !== undefined && value !== null && String(value).length > 0
 }

+function toRenderableImageSrc(path?: string): string | undefined {
+  const raw = String(path || '').trim()
+  if (!raw) return undefined
+  if (/^(data:|blob:|https?:|file:)/i.test(raw)) return raw
+
+  const normalized = raw.replace(/\\/g, '/')
+  if (/^[a-zA-Z]:\//.test(normalized)) {
+    return encodeURI(`file:///${normalized}`)
+  }
+  if (normalized.startsWith('/')) {
+    return encodeURI(`file://${normalized}`)
+  }
+  return raw
+}
+
 function getChatRecordPreviewText(item: ChatRecordItem): string {
  const text = normalizeChatRecordText(item.datadesc) || normalizeChatRecordText(item.datatitle)
  if (item.datatype === 17) {
@@ -4853,7 +4868,7 @@ function ChatPage(props: ChatPageProps) {
    const candidates = [...head, ...tail]
    const queued = preloadImageKeysRef.current
    const seen = new Set<string>()
-    const payloads: Array<{ sessionId?: string; imageMd5?: string; imageDatName?: string }> = []
+    const payloads: Array<{ sessionId?: string; imageMd5?: string; imageDatName?: string; createTime?: number }> = []
    for (const msg of candidates) {
      if (payloads.length >= maxPreload) break
      if (msg.localType !== 3) continue
@@ -4867,11 +4882,14 @@ function ChatPage(props: ChatPageProps) {
      payloads.push({
        sessionId: currentSessionId,
        imageMd5: msg.imageMd5 || undefined,
-        imageDatName: msg.imageDatName
+        imageDatName: msg.imageDatName,
+        createTime: msg.createTime
      })
    }
    if (payloads.length > 0) {
-      window.electronAPI.image.preload(payloads).catch(() => { })
+      window.electronAPI.image.preload(payloads, {
+        allowCacheIndex: false
+      }).catch(() => { })
    }
  }, [currentSessionId, messages])

@@ -5840,7 +5858,10 @@ function ChatPage(props: ChatPageProps) {
          sessionId: session.username,
          imageMd5: img.imageMd5,
          imageDatName: img.imageDatName,
-          force: true
+          createTime: img.createTime,
+          force: true,
+          preferFilePath: true,
+          hardlinkOnly: true
        })
        if (r?.success) successCount++
        else failCount++
@@ -7882,7 +7903,7 @@ function MessageBubble({
  )
  const imageCacheKey = message.imageMd5 || message.imageDatName || `local:${message.localId}`
  const [imageLocalPath, setImageLocalPath] = useState<string | undefined>(
-    () => imageDataUrlCache.get(imageCacheKey)
+    () => toRenderableImageSrc(imageDataUrlCache.get(imageCacheKey))
  )
  const voiceIdentityKey = buildVoiceCacheIdentity(session.username, message)
  const voiceCacheKey = `voice:${voiceIdentityKey}`
@@ -7904,6 +7925,7 @@ function MessageBubble({
  const imageUpdateCheckedRef = useRef<string | null>(null)
  const imageClickTimerRef = useRef<number | null>(null)
  const imageContainerRef = useRef<HTMLDivElement>(null)
+  const imageElementRef = useRef<HTMLImageElement | null>(null)
  const emojiContainerRef = useRef<HTMLDivElement>(null)
  const imageResizeBaselineRef = useRef<number | null>(null)
  const emojiResizeBaselineRef = useRef<number | null>(null)
@@ -8260,19 +8282,27 @@ function MessageBubble({
            sessionId: session.username,
            imageMd5: message.imageMd5 || undefined,
            imageDatName: message.imageDatName,
-            force: forceUpdate
+            createTime: message.createTime,
+            force: forceUpdate,
+            preferFilePath: true,
+            hardlinkOnly: true
          }) as SharedImageDecryptResult
        })
        if (result.success && result.localPath) {
-          imageDataUrlCache.set(imageCacheKey, result.localPath)
-          if (imageLocalPath !== result.localPath) {
+          const renderPath = toRenderableImageSrc(result.localPath)
+          if (!renderPath) {
+            if (!silent) setImageError(true)
+            return { success: false }
+          }
+          imageDataUrlCache.set(imageCacheKey, renderPath)
+          if (imageLocalPath !== renderPath) {
            captureImageResizeBaseline()
            lockImageStageHeight()
          }
-          setImageLocalPath(result.localPath)
+          setImageLocalPath(renderPath)
          setImageHasUpdate(false)
          if (result.liveVideoPath) setImageLiveVideoPath(result.liveVideoPath)
-          return result
+          return { ...result, localPath: renderPath }
        }
      }

@@ -8297,7 +8327,7 @@ function MessageBubble({
      imageDecryptPendingRef.current = false
    }
    return { success: false }
-  }, [isImage, message.imageMd5, message.imageDatName, message.localId, session.username, imageCacheKey, detectImageMimeFromBase64, imageLocalPath, captureImageResizeBaseline, lockImageStageHeight])
+  }, [isImage, message.imageMd5, message.imageDatName, message.createTime, message.localId, session.username, imageCacheKey, detectImageMimeFromBase64, imageLocalPath, captureImageResizeBaseline, lockImageStageHeight])

  const triggerForceHd = useCallback(() => {
    if (!message.imageMd5 && !message.imageDatName) return
@@ -8352,24 +8382,29 @@ function MessageBubble({
        const resolved = await window.electronAPI.image.resolveCache({
          sessionId: session.username,
          imageMd5: message.imageMd5 || undefined,
-          imageDatName: message.imageDatName
+          imageDatName: message.imageDatName,
+          createTime: message.createTime,
+          preferFilePath: true,
+          hardlinkOnly: true
        })
        if (resolved?.success && resolved.localPath) {
-          finalImagePath = resolved.localPath
+          const renderPath = toRenderableImageSrc(resolved.localPath)
+          if (!renderPath) return
+          finalImagePath = renderPath
          finalLiveVideoPath = resolved.liveVideoPath || finalLiveVideoPath
-          imageDataUrlCache.set(imageCacheKey, resolved.localPath)
-          if (imageLocalPath !== resolved.localPath) {
+          imageDataUrlCache.set(imageCacheKey, renderPath)
+          if (imageLocalPath !== renderPath) {
            captureImageResizeBaseline()
            lockImageStageHeight()
          }
-          setImageLocalPath(resolved.localPath)
+          setImageLocalPath(renderPath)
          if (resolved.liveVideoPath) setImageLiveVideoPath(resolved.liveVideoPath)
          setImageHasUpdate(Boolean(resolved.hasUpdate))
        }
      } catch { }
    }

-    void window.electronAPI.window.openImageViewerWindow(finalImagePath, finalLiveVideoPath)
+    void window.electronAPI.window.openImageViewerWindow(toRenderableImageSrc(finalImagePath) || finalImagePath, finalLiveVideoPath)
  }, [
    imageLiveVideoPath,
    imageLocalPath,
@@ -8378,6 +8413,7 @@ function MessageBubble({
    lockImageStageHeight,
    message.imageDatName,
    message.imageMd5,
+    message.createTime,
    requestImageDecrypt,
    session.username
  ])
@@ -8391,8 +8427,19 @@ function MessageBubble({
  }, [])

  useEffect(() => {
-    setImageLoaded(false)
-  }, [imageLocalPath])
+    if (!isImage) return
+    if (!imageLocalPath) {
+      setImageLoaded(false)
+      return
+    }
+
+    // 某些 file:// 缓存图在 src 切换时可能不会稳定触发 onLoad，
+    // 这里用 complete/naturalWidth 做一次兜底，避免图片进入 pending 隐身态。
+    const img = imageElementRef.current
+    if (img && img.complete && img.naturalWidth > 0) {
+      setImageLoaded(true)
+    }
+  }, [isImage, imageLocalPath])

  useEffect(() => {
    if (imageLoading) return
@@ -8401,7 +8448,7 @@ function MessageBubble({
  }, [imageError, imageLoading, imageLocalPath])

  useEffect(() => {
-    if (!isImage || imageLoading) return
+    if (!isImage || imageLoading || !imageInView) return
    if (!message.imageMd5 && !message.imageDatName) return
    if (imageUpdateCheckedRef.current === imageCacheKey) return
    imageUpdateCheckedRef.current = imageCacheKey
@@ -8409,15 +8456,21 @@ function MessageBubble({
    window.electronAPI.image.resolveCache({
      sessionId: session.username,
      imageMd5: message.imageMd5 || undefined,
-      imageDatName: message.imageDatName
+      imageDatName: message.imageDatName,
+      createTime: message.createTime,
+      preferFilePath: true,
+      hardlinkOnly: true,
+      allowCacheIndex: false
    }).then((result: { success: boolean; localPath?: string; hasUpdate?: boolean; liveVideoPath?: string; error?: string }) => {
      if (cancelled) return
      if (result.success && result.localPath) {
-        imageDataUrlCache.set(imageCacheKey, result.localPath)
-        if (!imageLocalPath || imageLocalPath !== result.localPath) {
+        const renderPath = toRenderableImageSrc(result.localPath)
+        if (!renderPath) return
+        imageDataUrlCache.set(imageCacheKey, renderPath)
+        if (!imageLocalPath || imageLocalPath !== renderPath) {
          captureImageResizeBaseline()
          lockImageStageHeight()
-          setImageLocalPath(result.localPath)
+          setImageLocalPath(renderPath)
          setImageError(false)
        }
        if (result.liveVideoPath) setImageLiveVideoPath(result.liveVideoPath)
@@ -8427,7 +8480,7 @@ function MessageBubble({
    return () => {
      cancelled = true
    }
-  }, [isImage, imageLocalPath, imageLoading, message.imageMd5, message.imageDatName, imageCacheKey, session.username, captureImageResizeBaseline, lockImageStageHeight])
+  }, [isImage, imageInView, imageLocalPath, imageLoading, message.imageMd5, message.imageDatName, message.createTime, imageCacheKey, session.username, captureImageResizeBaseline, lockImageStageHeight])

  useEffect(() => {
    if (!isImage) return
@@ -8455,15 +8508,17 @@ function MessageBubble({
        (payload.imageMd5 && payload.imageMd5 === message.imageMd5) ||
        (payload.imageDatName && payload.imageDatName === message.imageDatName)
      if (matchesCacheKey) {
+        const renderPath = toRenderableImageSrc(payload.localPath)
+        if (!renderPath) return
        const cachedPath = imageDataUrlCache.get(imageCacheKey)
-        if (cachedPath !== payload.localPath) {
-          imageDataUrlCache.set(imageCacheKey, payload.localPath)
+        if (cachedPath !== renderPath) {
+          imageDataUrlCache.set(imageCacheKey, renderPath)
        }
-        if (imageLocalPath !== payload.localPath) {
+        if (imageLocalPath !== renderPath) {
          captureImageResizeBaseline()
          lockImageStageHeight()
        }
-        setImageLocalPath((prev) => (prev === payload.localPath ? prev : payload.localPath))
+        setImageLocalPath((prev) => (prev === renderPath ? prev : renderPath))
        setImageError(false)
      }
    })
@@ -9093,6 +9148,7 @@ function MessageBubble({
            <>
              <div className="image-message-wrapper">
                <img
+                  ref={imageElementRef}
                  src={imageLocalPath}
                  alt="图片"
                  className={`image-message ${imageLoaded ? 'ready' : 'pending'}`}
--- a/src/pages/ExportPage.tsx
+++ b/src/pages/ExportPage.tsx
@@ -105,7 +105,6 @@ interface ExportOptions {
  txtColumns: string[]
  displayNamePreference: DisplayNamePreference
  exportConcurrency: number
-  imageDeepSearchOnMiss: boolean
 }

 interface SessionRow extends AppChatSession {
@@ -336,6 +335,15 @@ const isTextBatchTask = (task: ExportTask): boolean => (
  task.payload.scope === 'content' && task.payload.contentType === 'text'
 )

+const isImageExportTask = (task: ExportTask): boolean => {
+  if (task.payload.scope === 'sns') {
+    return Boolean(task.payload.snsOptions?.exportImages)
+  }
+  if (task.payload.scope !== 'content') return false
+  if (task.payload.contentType === 'image') return true
+  return Boolean(task.payload.options?.exportImages)
+}
+
 const resolvePerfStageByPhase = (phase?: ExportProgress['phase']): TaskPerfStage => {
  if (phase === 'preparing') return 'collect'
  if (phase === 'writing') return 'write'
@@ -1705,6 +1713,24 @@ const TaskCenterModal = memo(function TaskCenterModal({
                const currentSessionRatio = task.progress.phaseTotal > 0
                  ? Math.max(0, Math.min(1, task.progress.phaseProgress / task.progress.phaseTotal))
                  : null
+                const imageTask = isImageExportTask(task)
+                const imageTimingElapsedMs = imageTask
+                  ? Math.max(0, (
+                    typeof task.finishedAt === 'number'
+                      ? task.finishedAt
+                      : nowTick
+                  ) - (task.startedAt || task.createdAt))
+                  : 0
+                const imageTimingAvgMs = imageTask && mediaDoneFiles > 0
+                  ? Math.floor(imageTimingElapsedMs / Math.max(1, mediaDoneFiles))
+                  : 0
+                const imageTimingLabel = imageTask
+                  ? (
+                    mediaDoneFiles > 0
+                      ? `图片耗时 ${formatDurationMs(imageTimingElapsedMs)} · 平均 ${imageTimingAvgMs}ms/张`
+                      : `图片耗时 ${formatDurationMs(imageTimingElapsedMs)}`
+                  )
+                  : ''
                return (
                  <div key={task.id} className={`task-card ${task.status}`}>
                    <div className="task-main">
@@ -1734,6 +1760,11 @@ const TaskCenterModal = memo(function TaskCenterModal({
                          </div>
                        </>
                      )}
+                      {imageTimingLabel && task.status !== 'queued' && (
+                        <div className="task-perf-summary">
+                          <span>{imageTimingLabel}</span>
+                        </div>
+                      )}
                      {canShowPerfDetail && stageTotals && (
                        <div className="task-perf-summary">
                          <span>累计耗时 {formatDurationMs(stageTotalMs)}</span>
@@ -1903,7 +1934,6 @@ function ExportPage() {
  const [exportDefaultVoiceAsText, setExportDefaultVoiceAsText] = useState(false)
  const [exportDefaultExcelCompactColumns, setExportDefaultExcelCompactColumns] = useState(true)
  const [exportDefaultConcurrency, setExportDefaultConcurrency] = useState(2)
-  const [exportDefaultImageDeepSearchOnMiss, setExportDefaultImageDeepSearchOnMiss] = useState(true)

  const [options, setOptions] = useState<ExportOptions>({
    format: 'json',
@@ -1924,8 +1954,7 @@ function ExportPage() {
    excelCompactColumns: true,
    txtColumns: defaultTxtColumns,
    displayNamePreference: 'remark',
-    exportConcurrency: 2,
-    imageDeepSearchOnMiss: true
+    exportConcurrency: 2
  })

  const [exportDialog, setExportDialog] = useState<ExportDialogState>({
@@ -2622,7 +2651,7 @@ function ExportPage() {
    automationTasksReadyRef.current = false
    let isReady = true
    try {
-      const [savedPath, savedFormat, savedAvatars, savedMedia, savedVoiceAsText, savedExcelCompactColumns, savedTxtColumns, savedConcurrency, savedImageDeepSearchOnMiss, savedSessionMap, savedContentMap, savedSessionRecordMap, savedSnsPostCount, savedWriteLayout, savedSessionNameWithTypePrefix, savedDefaultDateRange, savedFileNamingMode, exportCacheScope] = await Promise.all([
+      const [savedPath, savedFormat, savedAvatars, savedMedia, savedVoiceAsText, savedExcelCompactColumns, savedTxtColumns, savedConcurrency, savedSessionMap, savedContentMap, savedSessionRecordMap, savedSnsPostCount, savedWriteLayout, savedSessionNameWithTypePrefix, savedDefaultDateRange, savedFileNamingMode, exportCacheScope] = await Promise.all([
        configService.getExportPath(),
        configService.getExportDefaultFormat(),
        configService.getExportDefaultAvatars(),
@@ -2631,7 +2660,6 @@ function ExportPage() {
        configService.getExportDefaultExcelCompactColumns(),
        configService.getExportDefaultTxtColumns(),
        configService.getExportDefaultConcurrency(),
-        configService.getExportDefaultImageDeepSearchOnMiss(),
        configService.getExportLastSessionRunMap(),
        configService.getExportLastContentRunMap(),
        configService.getExportSessionRecordMap(),
@@ -2671,7 +2699,6 @@ function ExportPage() {
      setExportDefaultVoiceAsText(savedVoiceAsText ?? false)
      setExportDefaultExcelCompactColumns(savedExcelCompactColumns ?? true)
      setExportDefaultConcurrency(savedConcurrency ?? 2)
-      setExportDefaultImageDeepSearchOnMiss(savedImageDeepSearchOnMiss ?? true)
      setExportDefaultFileNamingMode(savedFileNamingMode ?? 'classic')
      setAutomationTasks(automationTaskItem?.tasks || [])
      automationTasksReadyRef.current = true
@@ -2709,8 +2736,7 @@ function ExportPage() {
        exportVoiceAsText: savedVoiceAsText ?? prev.exportVoiceAsText,
        excelCompactColumns: savedExcelCompactColumns ?? prev.excelCompactColumns,
        txtColumns,
-        exportConcurrency: savedConcurrency ?? prev.exportConcurrency,
-        imageDeepSearchOnMiss: savedImageDeepSearchOnMiss ?? prev.imageDeepSearchOnMiss
+        exportConcurrency: savedConcurrency ?? prev.exportConcurrency
      }))
    } catch (error) {
      isReady = false
@@ -4491,8 +4517,7 @@ function ExportPage() {
        maxFileSizeMb: prev.maxFileSizeMb,
        exportVoiceAsText: exportDefaultVoiceAsText,
        excelCompactColumns: exportDefaultExcelCompactColumns,
-        exportConcurrency: exportDefaultConcurrency,
-        imageDeepSearchOnMiss: exportDefaultImageDeepSearchOnMiss
+        exportConcurrency: exportDefaultConcurrency
      }

      if (payload.scope === 'sns') {
@@ -4527,8 +4552,7 @@ function ExportPage() {
    exportDefaultAvatars,
    exportDefaultMedia,
    exportDefaultVoiceAsText,
-    exportDefaultConcurrency,
-    exportDefaultImageDeepSearchOnMiss
+    exportDefaultConcurrency
  ])

  const closeExportDialog = useCallback(() => {
@@ -4755,7 +4779,6 @@ function ExportPage() {
      txtColumns: options.txtColumns,
      displayNamePreference: options.displayNamePreference,
      exportConcurrency: options.exportConcurrency,
-      imageDeepSearchOnMiss: options.imageDeepSearchOnMiss,
      fileNamingMode: exportDefaultFileNamingMode,
      sessionLayout,
      sessionNameWithTypePrefix,
@@ -5691,8 +5714,6 @@ function ExportPage() {
    await configService.setExportDefaultExcelCompactColumns(options.excelCompactColumns)
    await configService.setExportDefaultTxtColumns(options.txtColumns)
    await configService.setExportDefaultConcurrency(options.exportConcurrency)
-    await configService.setExportDefaultImageDeepSearchOnMiss(options.imageDeepSearchOnMiss)
-    setExportDefaultImageDeepSearchOnMiss(options.imageDeepSearchOnMiss)
  }

  const openSingleExport = useCallback((session: SessionRow) => {
@@ -7393,14 +7414,6 @@ function ExportPage() {
  const useCollapsedSessionFormatSelector = isSessionScopeDialog || isContentTextDialog
  const shouldShowFormatSection = !isContentScopeDialog || isContentTextDialog
  const shouldShowMediaSection = !isContentScopeDialog
-  const shouldRenderImageDeepSearchToggle = exportDialog.scope !== 'sns' && (
-    isSessionScopeDialog ||
-    (isContentScopeDialog && exportDialog.contentType === 'image')
-  )
-  const shouldShowImageDeepSearchToggle = exportDialog.scope !== 'sns' && (
-    (isSessionScopeDialog && options.exportImages) ||
-    (isContentScopeDialog && exportDialog.contentType === 'image')
-  )
  const avatarExportStatusLabel = options.exportAvatars ? '已开启聊天消息导出带头像' : '已关闭聊天消息导出带头像'
  const contentTextDialogSummary = '此模式只导出聊天文本，不包含图片语音视频表情包等多媒体文件。'
  const activeDialogFormatLabel = exportDialog.scope === 'sns'
@@ -9710,30 +9723,6 @@ function ExportPage() {
                </div>
              )}

-              {shouldRenderImageDeepSearchToggle && (
-                <div className={`dialog-collapse-slot ${shouldShowImageDeepSearchToggle ? 'open' : ''}`} aria-hidden={!shouldShowImageDeepSearchToggle}>
-                  <div className="dialog-collapse-inner">
-                    <div className="dialog-section">
-                      <div className="dialog-switch-row">
-                        <div className="dialog-switch-copy">
-                          <h4>缺图时深度搜索</h4>
-                          <div className="format-note">关闭后仅尝试 hardlink 命中，未命中将直接显示占位符，导出速度更快。</div>
-                        </div>
-                        <button
-                          type="button"
-                          className={`dialog-switch ${options.imageDeepSearchOnMiss ? 'on' : ''}`}
-                          aria-pressed={options.imageDeepSearchOnMiss}
-                          aria-label="切换缺图时深度搜索"
-                          onClick={() => setOptions(prev => ({ ...prev, imageDeepSearchOnMiss: !prev.imageDeepSearchOnMiss }))}
-                        >
-                          <span className="dialog-switch-thumb" />
-                        </button>
-                      </div>
-                    </div>
-                  </div>
-                </div>
-              )}
-
              {isSessionScopeDialog && (
                <div className="dialog-section">
                  <div className="dialog-switch-row">
--- a/src/services/config.ts
+++ b/src/services/config.ts
@@ -37,7 +37,6 @@ export const CONFIG_KEYS = {
  EXPORT_DEFAULT_EXCEL_COMPACT_COLUMNS: 'exportDefaultExcelCompactColumns',
  EXPORT_DEFAULT_TXT_COLUMNS: 'exportDefaultTxtColumns',
  EXPORT_DEFAULT_CONCURRENCY: 'exportDefaultConcurrency',
-  EXPORT_DEFAULT_IMAGE_DEEP_SEARCH_ON_MISS: 'exportDefaultImageDeepSearchOnMiss',
  EXPORT_WRITE_LAYOUT: 'exportWriteLayout',
  EXPORT_SESSION_NAME_PREFIX_ENABLED: 'exportSessionNamePrefixEnabled',
  EXPORT_LAST_SESSION_RUN_MAP: 'exportLastSessionRunMap',
@@ -548,18 +547,6 @@ export async function setExportDefaultConcurrency(concurrency: number): Promise<
  await config.set(CONFIG_KEYS.EXPORT_DEFAULT_CONCURRENCY, concurrency)
 }

-// 获取缺图时是否深度搜索（默认导出行为）
-export async function getExportDefaultImageDeepSearchOnMiss(): Promise<boolean | null> {
-  const value = await config.get(CONFIG_KEYS.EXPORT_DEFAULT_IMAGE_DEEP_SEARCH_ON_MISS)
-  if (typeof value === 'boolean') return value
-  return null
-}
-
-// 设置缺图时是否深度搜索（默认导出行为）
-export async function setExportDefaultImageDeepSearchOnMiss(enabled: boolean): Promise<void> {
-  await config.set(CONFIG_KEYS.EXPORT_DEFAULT_IMAGE_DEEP_SEARCH_ON_MISS, enabled)
-}
-
 export type ExportWriteLayout = 'A' | 'B' | 'C'

 export async function getExportWriteLayout(): Promise<ExportWriteLayout> {
--- a/src/types/electron.d.ts
+++ b/src/types/electron.d.ts
@@ -491,24 +491,35 @@ export interface ElectronAPI {
  }

  image: {
-    decrypt: (payload: { sessionId?: string; imageMd5?: string; imageDatName?: string; force?: boolean }) => Promise<{ success: boolean; localPath?: string; liveVideoPath?: string; error?: string }>
+    decrypt: (payload: {
+      sessionId?: string
+      imageMd5?: string
+      imageDatName?: string
+      createTime?: number
+      force?: boolean
+      preferFilePath?: boolean
+      hardlinkOnly?: boolean
+    }) => Promise<{ success: boolean; localPath?: string; liveVideoPath?: string; error?: string }>
    resolveCache: (payload: {
      sessionId?: string
      imageMd5?: string
      imageDatName?: string
+      createTime?: number
+      preferFilePath?: boolean
+      hardlinkOnly?: boolean
      disableUpdateCheck?: boolean
      allowCacheIndex?: boolean
    }) => Promise<{ success: boolean; localPath?: string; hasUpdate?: boolean; liveVideoPath?: string; error?: string }>
    resolveCacheBatch: (
-      payloads: Array<{ sessionId?: string; imageMd5?: string; imageDatName?: string }>,
-      options?: { disableUpdateCheck?: boolean; allowCacheIndex?: boolean }
+      payloads: Array<{ sessionId?: string; imageMd5?: string; imageDatName?: string; createTime?: number; preferFilePath?: boolean; hardlinkOnly?: boolean }>,
+      options?: { disableUpdateCheck?: boolean; allowCacheIndex?: boolean; preferFilePath?: boolean; hardlinkOnly?: boolean }
    ) => Promise<{
      success: boolean
      rows?: Array<{ success: boolean; localPath?: string; hasUpdate?: boolean; error?: string }>
      error?: string
    }>
    preload: (
-      payloads: Array<{ sessionId?: string; imageMd5?: string; imageDatName?: string }>,
+      payloads: Array<{ sessionId?: string; imageMd5?: string; imageDatName?: string; createTime?: number }>,
      options?: { allowDecrypt?: boolean; allowCacheIndex?: boolean }
    ) => Promise<boolean>
    onUpdateAvailable: (callback: (payload: { cacheKey: string; imageMd5?: string; imageDatName?: string }) => void) => () => void
@@ -1117,7 +1128,6 @@ export interface ExportOptions {
  sessionNameWithTypePrefix?: boolean
  displayNamePreference?: 'group-nickname' | 'remark' | 'nickname'
  exportConcurrency?: number
-  imageDeepSearchOnMiss?: boolean
 }

 export interface ExportProgress {