feat(sidebar): 新增账号弹窗并将引导/设置入口下移到底部

头像点击展示当前账号信息弹窗

增加仅删除本项目数据提示与删除后返回引导页

接口异常（如 404）时自动走桌面 IPC 兜底

将引导页和设置图标移动到底部

desktop/src/main.cjs

@@ -215,6 +215,161 @@ function getUserDataDir() {
   return resolveDataDir();
 }
 
+function sanitizeAccountName(account) {
+  const name = String(account || "").trim();
+  if (!name) throw new Error("缺少账号参数");
+  if (name === "." || name === "..") throw new Error("账号参数非法");
+  if (name.includes("/") || name.includes("\\")) throw new Error("账号参数非法");
+  return name;
+}
+
+function listDecryptedAccountsOnDisk(databasesDir) {
+  try {
+    if (!fs.existsSync(databasesDir)) return [];
+  } catch {
+    return [];
+  }
+
+  let entries = [];
+  try {
+    entries = fs.readdirSync(databasesDir, { withFileTypes: true });
+  } catch {
+    return [];
+  }
+
+  const accounts = [];
+  for (const entry of entries) {
+    try {
+      if (!entry || !entry.isDirectory()) continue;
+      const accountDir = path.join(databasesDir, entry.name);
+      const hasSession = fs.existsSync(path.join(accountDir, "session.db"));
+      const hasContact = fs.existsSync(path.join(accountDir, "contact.db"));
+      if (hasSession && hasContact) accounts.push(String(entry.name || ""));
+    } catch {}
+  }
+  accounts.sort((a, b) => a.localeCompare(b));
+  return accounts;
+}
+
+function resolveAccountDirInOutput(account) {
+  const dataDir = resolveDataDir();
+  if (!dataDir) throw new Error("无法定位数据目录");
+
+  const outputDir = path.join(dataDir, "output");
+  const databasesDir = path.join(outputDir, "databases");
+  const accountName = sanitizeAccountName(account);
+
+  const base = path.resolve(databasesDir);
+  const accountDir = path.resolve(path.join(databasesDir, accountName));
+  if (accountDir !== base && !accountDir.startsWith(base + path.sep)) {
+    throw new Error("账号路径非法");
+  }
+
+  return {
+    dataDir,
+    outputDir,
+    databasesDir,
+    accountName,
+    accountDir,
+  };
+}
+
+function getAccountInfoFromDisk(account) {
+  const { accountName, accountDir } = resolveAccountDirInOutput(account);
+  if (!fs.existsSync(accountDir) || !fs.statSync(accountDir).isDirectory()) {
+    throw new Error("账号数据不存在");
+  }
+
+  let entries = [];
+  try {
+    entries = fs.readdirSync(accountDir, { withFileTypes: true });
+  } catch {}
+  const dbFiles = entries
+    .filter((e) => !!e && e.isFile() && String(e.name || "").toLowerCase().endsWith(".db"))
+    .map((e) => String(e.name || ""))
+    .sort((a, b) => a.localeCompare(b));
+
+  let sessionUpdatedAt = 0;
+  try {
+    const st = fs.statSync(path.join(accountDir, "session.db"));
+    sessionUpdatedAt = Math.floor(Number(st?.mtimeMs || 0) / 1000);
+  } catch {}
+
+  return {
+    status: "success",
+    account: accountName,
+    path: accountDir,
+    database_count: dbFiles.length,
+    databases: dbFiles,
+    session_updated_at: sessionUpdatedAt,
+  };
+}
+
+function removeAccountFromKeyStore(dataDir, accountName) {
+  const keyStorePath = path.join(dataDir, "output", "account_keys.json");
+  try {
+    if (!fs.existsSync(keyStorePath)) return false;
+    const raw = fs.readFileSync(keyStorePath, { encoding: "utf8" });
+    const parsed = JSON.parse(raw || "{}");
+    if (!parsed || typeof parsed !== "object" || Array.isArray(parsed)) return false;
+    if (!Object.prototype.hasOwnProperty.call(parsed, accountName)) return false;
+    delete parsed[accountName];
+    fs.writeFileSync(keyStorePath, JSON.stringify(parsed, null, 2), { encoding: "utf8" });
+    return true;
+  } catch {
+    return false;
+  }
+}
+
+async function deleteAccountDataFromDisk(account) {
+  const { dataDir, outputDir, databasesDir, accountName, accountDir } = resolveAccountDirInOutput(account);
+  if (!fs.existsSync(accountDir) || !fs.statSync(accountDir).isDirectory()) {
+    throw new Error("账号数据不存在");
+  }
+
+  const wasBackendRunning = !!backendProc;
+  let restartError = null;
+  let result = null;
+
+  if (wasBackendRunning) {
+    await stopBackendAndWait({ timeoutMs: 10_000 });
+  }
+
+  try {
+    const exportsDir = path.join(outputDir, "exports", accountName);
+    try {
+      fs.rmSync(exportsDir, { recursive: true, force: true });
+    } catch {}
+
+    fs.rmSync(accountDir, { recursive: true, force: true });
+    const removedKeyCache = removeAccountFromKeyStore(dataDir, accountName);
+    const accounts = listDecryptedAccountsOnDisk(databasesDir);
+    result = {
+      status: "success",
+      deleted_account: accountName,
+      accounts,
+      default_account: accounts.length ? accounts[0] : null,
+      removed_key_cache: removedKeyCache,
+    };
+  } finally {
+    if (wasBackendRunning) {
+      try {
+        startBackend();
+        await waitForBackend({ timeoutMs: 30_000 });
+      } catch (err) {
+        restartError = err;
+        logMain(`[main] failed to restart backend after deleteAccountData: ${err?.message || err}`);
+      }
+    }
+  }
+
+  if (restartError) {
+    throw new Error(`删除完成，但后端重启失败：${restartError?.message || restartError}`);
+  }
+  if (!result) throw new Error("删除账号数据失败");
+  return result;
+}
+
 function getExeDir() {
   try {
     return path.dirname(process.execPath);
@@ -1384,6 +1539,22 @@ function registerWindowIpc() {
     }
   });
 
+  ipcMain.handle("app:getAccountInfo", async (_event, account) => {
+    try {
+      return getAccountInfoFromDisk(account);
+    } catch (e) {
+      throw new Error(e?.message || String(e));
+    }
+  });
+
+  ipcMain.handle("app:deleteAccountData", async (_event, account) => {
+    try {
+      return await deleteAccountDataFromDisk(account);
+    } catch (e) {
+      throw new Error(e?.message || String(e));
+    }
+  });
+
   ipcMain.handle("app:checkForUpdates", async () => {
     return await checkForUpdatesInternal();
   });

desktop/src/preload.cjs

@@ -22,6 +22,8 @@ contextBridge.exposeInMainWorld("wechatDesktop", {
   // Data/output folder helpers
   getOutputDir: () => ipcRenderer.invoke("app:getOutputDir"),
   openOutputDir: () => ipcRenderer.invoke("app:openOutputDir"),
+  getAccountInfo: (account) => ipcRenderer.invoke("app:getAccountInfo", String(account || "")),
+  deleteAccountData: (account) => ipcRenderer.invoke("app:deleteAccountData", String(account || "")),
 
   // Auto update
   getVersion: () => ipcRenderer.invoke("app:getVersion"),

frontend/components/SettingsDialog.vue

@@ -63,186 +63,202 @@
           </div>
 
           <section ref="desktopSectionRef">
-            <div class="mb-3 text-[12px] font-bold text-[#999] tracking-widest">桌面行为</div>
-            
-            <div class="space-y-3">
-              <div class="flex items-center justify-between gap-3">
-                <div class="min-w-0 flex-1">
-                  <div class="text-[13px] font-medium text-[#222]">开机自启动</div>
-                  <div class="mt-0.5 text-[11px] text-[#909090]">系统登录后自动启动桌面端应用</div>
-                </div>
-                <button
-                  type="button"
-                  role="switch"
-                  :aria-checked="desktopAutoLaunch"
-                  class="settings-switch shrink-0"
-                  :class="switchTrackClass(desktopAutoLaunch, !isDesktopEnv || desktopAutoLaunchLoading)"
-                  :disabled="!isDesktopEnv || desktopAutoLaunchLoading"
-                  @click="toggleDesktopAutoLaunch"
-                >
-                  <span class="settings-switch-thumb" :class="desktopAutoLaunch ? 'translate-x-[20px]' : 'translate-x-0'" />
-                </button>
-              </div>
-              <div v-if="desktopAutoLaunchError" class="text-xs text-red-600 whitespace-pre-wrap -mt-2">
-                {{ desktopAutoLaunchError }}
-              </div>
-
-              <div class="flex items-center justify-between gap-3">
-                <div class="min-w-0 flex-1">
-                  <div class="text-[13px] font-medium text-[#222]">关闭窗口行为</div>
-                  <div class="mt-0.5 text-[11px] text-[#909090]">点击关闭按钮时：默认最小化到托盘</div>
-                </div>
-                <select
-                  class="shrink-0 rounded-[6px] border border-[#e2e2e2] bg-white px-2 py-1 text-[12px] text-[#333] outline-none transition focus:border-[#07b75b] focus:ring-1 focus:ring-[#07b75b]/30"
-                  :disabled="!isDesktopEnv || desktopCloseBehaviorLoading"
-                  :value="desktopCloseBehavior"
-                  @change="onDesktopCloseBehaviorChange"
-                >
-                  <option value="tray">最小化到托盘</option>
-                  <option value="exit">直接退出</option>
-                </select>
-              </div>
-              <div v-if="desktopCloseBehaviorError" class="text-xs text-red-600 whitespace-pre-wrap -mt-2">
-                {{ desktopCloseBehaviorError }}
-              </div>
-
-              <div class="flex flex-col gap-1.5 sm:flex-row sm:items-center sm:justify-between">
-                <div class="min-w-0 flex-1">
-                  <div class="text-[13px] font-medium text-[#222]">后端端口</div>
-                  <div class="mt-0.5 text-[11px] text-[#909090]">桌面端：重启内置后端并刷新；网页端：尝试切换端口</div>
-                </div>
-                <div class="flex shrink-0 items-center gap-1.5">
-                  <input
-                    v-model="desktopBackendPortInput"
-                    type="number"
-                    min="1"
-                    max="65535"
-                    class="w-16 rounded-[6px] border border-[#e2e2e2] bg-white px-2 py-1 text-center text-[12px] tabular-nums text-[#333] outline-none transition focus:border-[#07b75b] focus:ring-1 focus:ring-[#07b75b]/30"
-                    :disabled="desktopBackendPortLoading || desktopBackendPortApplying"
-                    @keyup.enter="onDesktopBackendPortApply"
-                  />
+            <div class="mb-2.5 text-[12px] font-bold text-[#999] tracking-widest">桌面行为</div>
+            <div class="overflow-hidden rounded-[10px] border border-[#e7e7e7] bg-white divide-y divide-[#ececec]">
+              <div class="px-3.5 py-3">
+                <div class="flex items-center justify-between gap-3">
+                  <div class="min-w-0 flex-1">
+                    <div class="text-[13px] font-medium text-[#222]">开机自启动</div>
+                    <div class="mt-0.5 text-[11px] text-[#909090]">系统登录后自动启动桌面端应用</div>
+                  </div>
                   <button
                     type="button"
-                    class="rounded-[6px] border border-[#e2e2e2] bg-white px-2 py-1 text-[12px] text-[#222] transition hover:bg-[#f9f9f9] disabled:cursor-not-allowed disabled:opacity-50"
-                    :disabled="desktopBackendPortLoading || desktopBackendPortApplying"
-                    @click="onDesktopBackendPortApply"
+                    role="switch"
+                    :aria-checked="desktopAutoLaunch"
+                    class="settings-switch shrink-0"
+                    :class="switchTrackClass(desktopAutoLaunch, !isDesktopEnv || desktopAutoLaunchLoading)"
+                    :disabled="!isDesktopEnv || desktopAutoLaunchLoading"
+                    @click="toggleDesktopAutoLaunch"
                   >
-                    {{ desktopBackendPortApplying ? '...' : '应用' }}
-                  </button>
-                  <button
-                    type="button"
-                    class="rounded-[6px] border border-[#e2e2e2] bg-white px-2 py-1 text-[12px] text-[#222] transition hover:bg-[#f9f9f9] disabled:cursor-not-allowed disabled:opacity-50"
-                    :disabled="desktopBackendPortLoading || desktopBackendPortApplying"
-                    @click="onDesktopBackendPortReset"
-                  >
-                    恢复默认
+                    <span class="settings-switch-thumb" :class="desktopAutoLaunch ? 'translate-x-[20px]' : 'translate-x-0'" />
                   </button>
                 </div>
-              </div>
-              <div v-if="desktopBackendPortError" class="text-xs text-red-600 whitespace-pre-wrap -mt-1.5">
-                {{ desktopBackendPortError }}
+                <div v-if="desktopAutoLaunchError" class="mt-1.5 text-[11px] text-red-600 whitespace-pre-wrap">
+                  {{ desktopAutoLaunchError }}
+                </div>
               </div>
 
-              <div class="flex flex-col gap-1.5 sm:flex-row sm:items-center sm:justify-between">
-                <div class="min-w-0 flex-1">
-                  <div class="text-[13px] font-medium text-[#222]">output 目录</div>
-                  <div class="mt-0.5 text-[11px] text-[#909090] break-words">{{ desktopOutputDirText }}</div>
+              <div class="px-3.5 py-3">
+                <div class="flex items-center justify-between gap-3">
+                  <div class="min-w-0 flex-1">
+                    <div class="text-[13px] font-medium text-[#222]">关闭窗口行为</div>
+                    <div class="mt-0.5 text-[11px] text-[#909090]">点击关闭按钮时：默认最小化到托盘</div>
+                  </div>
+                  <select
+                    class="shrink-0 rounded-[6px] border border-[#e2e2e2] bg-white px-2 py-1 text-[12px] text-[#333] outline-none transition focus:border-[#07b75b] focus:ring-1 focus:ring-[#07b75b]/30"
+                    :disabled="!isDesktopEnv || desktopCloseBehaviorLoading"
+                    :value="desktopCloseBehavior"
+                    @change="onDesktopCloseBehaviorChange"
+                  >
+                    <option value="tray">最小化到托盘</option>
+                    <option value="exit">直接退出</option>
+                  </select>
+                </div>
+                <div v-if="desktopCloseBehaviorError" class="mt-1.5 text-[11px] text-red-600 whitespace-pre-wrap">
+                  {{ desktopCloseBehaviorError }}
                 </div>
-                <button
-                  type="button"
-                  class="shrink-0 rounded-[6px] border border-[#e2e2e2] bg-white px-2 py-1 text-[12px] text-[#222] transition hover:bg-[#f9f9f9] disabled:cursor-not-allowed disabled:opacity-50"
-                  :disabled="!isDesktopEnv || desktopOutputDirLoading"
-                  @click="onDesktopOpenOutputDir"
-                >
-                  打开 output
-                </button>
               </div>
-              <div v-if="desktopOutputDirError" class="text-xs text-red-600 whitespace-pre-wrap -mt-1.5">
-                {{ desktopOutputDirError }}
+
+              <div class="px-3.5 py-3">
+                <div class="flex flex-col gap-1.5 sm:flex-row sm:items-center sm:justify-between">
+                  <div class="min-w-0 flex-1">
+                    <div class="text-[13px] font-medium text-[#222]">后端端口</div>
+                    <div class="mt-0.5 text-[11px] text-[#909090]">桌面端：重启内置后端并刷新；网页端：尝试切换端口</div>
+                  </div>
+                  <div class="flex shrink-0 items-center gap-1.5">
+                    <input
+                      v-model="desktopBackendPortInput"
+                      type="number"
+                      min="1"
+                      max="65535"
+                      class="w-16 rounded-[6px] border border-[#e2e2e2] bg-white px-2 py-1 text-center text-[12px] tabular-nums text-[#333] outline-none transition focus:border-[#07b75b] focus:ring-1 focus:ring-[#07b75b]/30"
+                      :disabled="desktopBackendPortLoading || desktopBackendPortApplying"
+                      @keyup.enter="onDesktopBackendPortApply"
+                    />
+                    <button
+                      type="button"
+                      class="rounded-[6px] border border-[#e2e2e2] bg-white px-2 py-1 text-[12px] text-[#222] transition hover:bg-[#f9f9f9] disabled:cursor-not-allowed disabled:opacity-50"
+                      :disabled="desktopBackendPortLoading || desktopBackendPortApplying"
+                      @click="onDesktopBackendPortApply"
+                    >
+                      {{ desktopBackendPortApplying ? '...' : '应用' }}
+                    </button>
+                    <button
+                      type="button"
+                      class="rounded-[6px] border border-[#e2e2e2] bg-white px-2 py-1 text-[12px] text-[#222] transition hover:bg-[#f9f9f9] disabled:cursor-not-allowed disabled:opacity-50"
+                      :disabled="desktopBackendPortLoading || desktopBackendPortApplying"
+                      @click="onDesktopBackendPortReset"
+                    >
+                      恢复默认
+                    </button>
+                  </div>
+                </div>
+                <div v-if="desktopBackendPortError" class="mt-1.5 text-[11px] text-red-600 whitespace-pre-wrap">
+                  {{ desktopBackendPortError }}
+                </div>
+              </div>
+
+              <div class="px-3.5 py-3">
+                <div class="flex flex-col gap-1.5 sm:flex-row sm:items-center sm:justify-between">
+                  <div class="min-w-0 flex-1">
+                    <div class="text-[13px] font-medium text-[#222]">output 目录</div>
+                    <div class="mt-0.5 text-[11px] text-[#909090] break-words">{{ desktopOutputDirText }}</div>
+                  </div>
+                  <button
+                    type="button"
+                    class="shrink-0 rounded-[6px] border border-[#e2e2e2] bg-white px-2 py-1 text-[12px] text-[#222] transition hover:bg-[#f9f9f9] disabled:cursor-not-allowed disabled:opacity-50"
+                    :disabled="!isDesktopEnv || desktopOutputDirLoading"
+                    @click="onDesktopOpenOutputDir"
+                  >
+                    打开 output
+                  </button>
+                </div>
+                <div v-if="desktopOutputDirError" class="mt-1.5 text-[11px] text-red-600 whitespace-pre-wrap">
+                  {{ desktopOutputDirError }}
+                </div>
               </div>
             </div>
           </section>
 
           <section ref="startupSectionRef">
-            <div class="mb-3 text-[12px] font-bold text-[#999] tracking-widest">启动偏好</div>
-            
-            <div class="space-y-3">
-              <div class="flex items-center justify-between gap-3">
-                <div class="min-w-0 flex-1">
-                  <div class="text-[13px] font-medium text-[#222]">启动后自动开启实时获取</div>
-                  <div class="mt-0.5 text-[11px] text-[#909090]">进入聊天页后自动打开“实时开关”</div>
+            <div class="mb-2.5 text-[12px] font-bold text-[#999] tracking-widest">启动偏好</div>
+            <div class="overflow-hidden rounded-[10px] border border-[#e7e7e7] bg-white divide-y divide-[#ececec]">
+              <div class="px-3.5 py-3">
+                <div class="flex items-center justify-between gap-3">
+                  <div class="min-w-0 flex-1">
+                    <div class="text-[13px] font-medium text-[#222]">启动后自动开启实时获取</div>
+                    <div class="mt-0.5 text-[11px] text-[#909090]">进入聊天页后自动打开“实时开关”</div>
+                  </div>
+                  <button
+                    type="button"
+                    role="switch"
+                    :aria-checked="desktopAutoRealtime"
+                    class="settings-switch shrink-0"
+                    :class="switchTrackClass(desktopAutoRealtime)"
+                    @click="toggleDesktopAutoRealtime"
+                  >
+                    <span class="settings-switch-thumb" :class="desktopAutoRealtime ? 'translate-x-[20px]' : 'translate-x-0'" />
+                  </button>
                 </div>
-                <button
-                  type="button"
-                  role="switch"
-                  :aria-checked="desktopAutoRealtime"
-                  class="settings-switch shrink-0"
-                  :class="switchTrackClass(desktopAutoRealtime)"
-                  @click="toggleDesktopAutoRealtime"
-                >
-                  <span class="settings-switch-thumb" :class="desktopAutoRealtime ? 'translate-x-[20px]' : 'translate-x-0'" />
-                </button>
               </div>
 
-              <div class="flex items-center justify-between gap-3">
-                <div class="min-w-0 flex-1">
-                  <div class="text-[13px] font-medium text-[#222]">有数据时默认进入聊天页</div>
-                  <div class="mt-0.5 text-[11px] text-[#909090]">有已解密账号时，打开应用跳转到 /chat</div>
+              <div class="px-3.5 py-3">
+                <div class="flex items-center justify-between gap-3">
+                  <div class="min-w-0 flex-1">
+                    <div class="text-[13px] font-medium text-[#222]">有数据时默认进入聊天页</div>
+                    <div class="mt-0.5 text-[11px] text-[#909090]">有已解密账号时，打开应用跳转到 /chat</div>
+                  </div>
+                  <button
+                    type="button"
+                    role="switch"
+                    :aria-checked="desktopDefaultToChatWhenData"
+                    class="settings-switch shrink-0"
+                    :class="switchTrackClass(desktopDefaultToChatWhenData)"
+                    @click="toggleDesktopDefaultToChat"
+                  >
+                    <span class="settings-switch-thumb" :class="desktopDefaultToChatWhenData ? 'translate-x-[20px]' : 'translate-x-0'" />
+                  </button>
                 </div>
-                <button
-                  type="button"
-                  role="switch"
-                  :aria-checked="desktopDefaultToChatWhenData"
-                  class="settings-switch shrink-0"
-                  :class="switchTrackClass(desktopDefaultToChatWhenData)"
-                  @click="toggleDesktopDefaultToChat"
-                >
-                  <span class="settings-switch-thumb" :class="desktopDefaultToChatWhenData ? 'translate-x-[20px]' : 'translate-x-0'" />
-                </button>
               </div>
             </div>
           </section>
 
           <section ref="updatesSectionRef">
-            <div class="mb-3 text-[12px] font-bold text-[#999] tracking-widest">更新</div>
-            
-            <div class="flex flex-col gap-1.5 sm:flex-row sm:items-center sm:justify-between">
-              <div class="min-w-0 flex-1">
-                <div class="text-[13px] font-medium text-[#222]">当前版本</div>
-                <div class="mt-0.5 text-[11px] text-[#909090]">{{ desktopVersionText }}</div>
+            <div class="mb-2.5 text-[12px] font-bold text-[#999] tracking-widest">更新</div>
+            <div class="overflow-hidden rounded-[10px] border border-[#e7e7e7] bg-white divide-y divide-[#ececec]">
+              <div class="px-3.5 py-3">
+                <div class="flex flex-col gap-1.5 sm:flex-row sm:items-center sm:justify-between">
+                  <div class="min-w-0 flex-1">
+                    <div class="text-[13px] font-medium text-[#222]">当前版本</div>
+                    <div class="mt-0.5 text-[11px] text-[#909090]">{{ desktopVersionText }}</div>
+                  </div>
+                  <button
+                    type="button"
+                    class="shrink-0 rounded-[6px] border border-[#e2e2e2] bg-[#fafafa] px-2.5 py-1 text-[12px] text-[#222] transition hover:bg-[#f0f0f0] disabled:cursor-not-allowed disabled:opacity-50"
+                    :disabled="!isDesktopEnv || desktopUpdate.manualCheckLoading.value"
+                    @click="onDesktopCheckUpdates"
+                  >
+                    {{ desktopUpdate.manualCheckLoading.value ? '检查中...' : '检查桌面版更新' }}
+                  </button>
+                </div>
+                <div v-if="desktopUpdate.lastCheckMessage.value" class="mt-2 rounded-[6px] bg-[#f9f9f9] border border-[#eee] px-2.5 py-1.5 text-[11px] text-[#666] whitespace-pre-wrap break-words">
+                  {{ desktopUpdate.lastCheckMessage.value }}
+                </div>
               </div>
-              <button
-                type="button"
-                class="shrink-0 rounded-[6px] border border-[#e2e2e2] bg-[#fafafa] px-2.5 py-1 text-[12px] text-[#222] transition hover:bg-[#f0f0f0] disabled:cursor-not-allowed disabled:opacity-50"
-                :disabled="!isDesktopEnv || desktopUpdate.manualCheckLoading.value"
-                @click="onDesktopCheckUpdates"
-              >
-                {{ desktopUpdate.manualCheckLoading.value ? '检查中...' : '检查桌面版更新' }}
-              </button>
-            </div>
-            <div v-if="desktopUpdate.lastCheckMessage.value" class="mt-2 rounded-[6px] bg-[#f9f9f9] border border-[#eee] px-2.5 py-1.5 text-[11px] text-[#666] whitespace-pre-wrap break-words">
-              {{ desktopUpdate.lastCheckMessage.value }}
             </div>
           </section>
 
           <section ref="snsSectionRef">
-            <div class="mb-3 text-[12px] font-bold text-[#999] tracking-widest">朋友圈</div>
-            
-            <div class="flex items-center justify-between gap-3">
-              <div class="min-w-0 flex-1">
-                <div class="text-[13px] font-medium text-[#222]">朋友圈图片使用缓存</div>
-                <div class="mt-0.5 text-[11px] text-[#909090]">开启：下载解密失败时回退本地缓存（默认）；关闭：始终重新下载</div>
+            <div class="mb-2.5 text-[12px] font-bold text-[#999] tracking-widest">朋友圈</div>
+            <div class="overflow-hidden rounded-[10px] border border-[#e7e7e7] bg-white divide-y divide-[#ececec]">
+              <div class="px-3.5 py-3">
+                <div class="flex items-center justify-between gap-3">
+                  <div class="min-w-0 flex-1">
+                    <div class="text-[13px] font-medium text-[#222]">朋友圈图片使用缓存</div>
+                    <div class="mt-0.5 text-[11px] text-[#909090]">开启：下载解密失败时回退本地缓存（默认）；关闭：始终重新下载</div>
+                  </div>
+                  <button
+                    type="button"
+                    role="switch"
+                    :aria-checked="snsUseCache"
+                    class="settings-switch shrink-0"
+                    :class="switchTrackClass(snsUseCache)"
+                    @click="toggleSnsUseCache"
+                  >
+                    <span class="settings-switch-thumb" :class="snsUseCache ? 'translate-x-[20px]' : 'translate-x-0'" />
+                  </button>
+                </div>
               </div>
-              <button
-                type="button"
-                role="switch"
-                :aria-checked="snsUseCache"
-                class="settings-switch shrink-0"
-                :class="switchTrackClass(snsUseCache)"
-                @click="toggleSnsUseCache"
-              >
-                <span class="settings-switch-thumb" :class="snsUseCache ? 'translate-x-[20px]' : 'translate-x-0'" />
-              </button>
             </div>
           </section>
 

frontend/components/SidebarRail.vue

@@ -6,7 +6,12 @@
     <div class="flex-1 flex flex-col justify-start pt-0 gap-0">
       <!-- Avatar -->
       <div class="w-full h-[60px] flex items-center justify-center">
-        <div class="w-[40px] h-[40px] rounded-md overflow-hidden bg-gray-300 flex-shrink-0">
+        <button
+          type="button"
+          class="group relative w-[40px] h-[40px] rounded-md overflow-hidden bg-gray-300 flex-shrink-0 ring-1 ring-transparent transition hover:ring-[#07b75b]/40"
+          title="账号信息"
+          @click="openAccountDialog"
+        >
           <img v-if="selfAvatarUrl" :src="selfAvatarUrl" alt="avatar" class="w-full h-full object-cover" />
           <div
             v-else
@@ -15,7 +20,7 @@
           >
             我
           </div>
-        </div>
+        </button>
       </div>
 
       <!-- Chat -->
@@ -164,22 +169,116 @@
         </div>
       </div>
 
-      <!-- Settings -->
-      <div
-        class="w-full h-[var(--sidebar-rail-step)] flex items-center justify-center cursor-pointer group"
-        @click="goSettings"
-        title="设置"
-      >
-        <div class="w-[var(--sidebar-rail-btn)] h-[var(--sidebar-rail-btn)] rounded-md flex items-center justify-center transition-colors bg-transparent group-hover:bg-[#E1E1E1]">
-          <svg class="w-[var(--sidebar-rail-icon)] h-[var(--sidebar-rail-icon)]" :class="settingsDialogOpen ? 'text-[#07b75b]' : 'text-[#5d5d5d]'" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5">
-            <path
-              stroke-linecap="round"
-              stroke-linejoin="round"
-              d="M10.325 4.317c.426-1.756 2.924-1.756 3.35 0a1.724 1.724 0 002.573 1.066c1.543-.94 3.31.826 2.37 2.37a1.724 1.724 0 001.065 2.572c1.756.426 1.756 2.924 0 3.35a1.724 1.724 0 00-1.066 2.573c.94 1.543-.826 3.31-2.37 2.37a1.724 1.724 0 00-2.572 1.065c-.426 1.756-2.924 1.756-3.35 0a1.724 1.724 0 00-2.573-1.066c-1.543.94-3.31-.826-2.37-2.37a1.724 1.724 0 00-1.065-2.572c-1.756-.426-1.756-2.924 0-3.35a1.724 1.724 0 001.066-2.573c-.94-1.543.826-3.31 2.37-2.37.996.608 2.296.07 2.572-1.065z"
-            />
-            <path stroke-linecap="round" stroke-linejoin="round" d="M15 12a3 3 0 11-6 0 3 3 0 016 0z" />
-          </svg>
+      <div class="mt-auto">
+        <!-- Guide -->
+        <div
+          class="w-full h-[var(--sidebar-rail-step)] flex items-center justify-center cursor-pointer group"
+          title="引导页"
+          @click="goGuide"
+        >
+          <div class="w-[var(--sidebar-rail-btn)] h-[var(--sidebar-rail-btn)] rounded-md flex items-center justify-center transition-colors bg-transparent group-hover:bg-[#E1E1E1]">
+            <svg class="w-[var(--sidebar-rail-icon)] h-[var(--sidebar-rail-icon)] text-[#5d5d5d]" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true">
+              <path d="M3 10.5L12 3l9 7.5" />
+              <path d="M5 9.5V20h14V9.5" />
+              <path d="M10 20v-6h4v6" />
+            </svg>
+          </div>
         </div>
+
+        <!-- Settings -->
+        <div
+          class="w-full h-[var(--sidebar-rail-step)] flex items-center justify-center cursor-pointer group"
+          @click="goSettings"
+          title="设置"
+        >
+          <div class="w-[var(--sidebar-rail-btn)] h-[var(--sidebar-rail-btn)] rounded-md flex items-center justify-center transition-colors bg-transparent group-hover:bg-[#E1E1E1]">
+            <svg class="w-[var(--sidebar-rail-icon)] h-[var(--sidebar-rail-icon)]" :class="settingsDialogOpen ? 'text-[#07b75b]' : 'text-[#5d5d5d]'" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5">
+              <path
+                stroke-linecap="round"
+                stroke-linejoin="round"
+                d="M10.325 4.317c.426-1.756 2.924-1.756 3.35 0a1.724 1.724 0 002.573 1.066c1.543-.94 3.31.826 2.37 2.37a1.724 1.724 0 001.065 2.572c1.756.426 1.756 2.924 0 3.35a1.724 1.724 0 00-1.066 2.573c.94 1.543-.826 3.31-2.37 2.37a1.724 1.724 0 00-2.572 1.065c-.426 1.756-2.924 1.756-3.35 0a1.724 1.724 0 00-2.573-1.066c-1.543.94-3.31-.826-2.37-2.37a1.724 1.724 0 00-1.065-2.572c-1.756-.426-1.756-2.924 0-3.35a1.724 1.724 0 001.066-2.573c-.94-1.543.826-3.31 2.37-2.37.996.608 2.296.07 2.572-1.065z"
+              />
+              <path stroke-linecap="round" stroke-linejoin="round" d="M15 12a3 3 0 11-6 0 3 3 0 016 0z" />
+            </svg>
+          </div>
+        </div>
+      </div>
+    </div>
+  </div>
+
+  <div
+    v-if="accountDialogOpen"
+    class="fixed inset-0 z-[130] flex items-center justify-center bg-black/35 px-4"
+    @click.self="closeAccountDialog"
+  >
+    <div class="w-full max-w-[440px] overflow-hidden rounded-[12px] border border-[#e7e7e7] bg-white shadow-2xl">
+      <div class="flex items-center justify-between border-b border-[#efefef] px-4 py-3">
+        <div class="text-[14px] font-semibold text-[#222]">当前账号信息</div>
+        <button
+          type="button"
+          class="flex h-7 w-7 items-center justify-center rounded-md text-[#888] transition hover:bg-[#f2f2f2] hover:text-[#222]"
+          title="关闭"
+          :disabled="accountDeleteLoading"
+          @click="closeAccountDialog"
+        >
+          <svg class="h-4 w-4" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" aria-hidden="true">
+            <path d="M6 6l12 12M18 6L6 18" />
+          </svg>
+        </button>
+      </div>
+
+      <div class="space-y-3 px-4 py-4">
+        <div v-if="accountInfoLoading" class="text-[12px] text-[#7a7a7a]">正在加载账号信息...</div>
+        <template v-else>
+          <div class="flex items-center gap-3">
+            <div class="w-[42px] h-[42px] rounded-md overflow-hidden bg-gray-300 flex-shrink-0">
+              <img v-if="selfAvatarUrl" :src="selfAvatarUrl" alt="avatar" class="w-full h-full object-cover" />
+              <div
+                v-else
+                class="w-full h-full flex items-center justify-center text-white text-xs font-bold"
+                :style="{ backgroundColor: '#4B5563' }"
+              >
+                我
+              </div>
+            </div>
+            <div class="min-w-0 flex-1">
+              <div class="truncate text-[14px] font-semibold text-[#222]">{{ selectedAccount || '未选择账号' }}</div>
+              <div class="mt-0.5 text-[11px] text-[#8a8a8a]">账号标识（wxid）</div>
+            </div>
+          </div>
+
+          <div class="rounded-[8px] border border-[#ededed] bg-[#fafafa] px-3 py-2 text-[12px] text-[#5f5f5f] space-y-1.5">
+            <div class="flex items-start justify-between gap-3">
+              <span class="text-[#8a8a8a] shrink-0">数据库数量</span>
+              <span class="font-medium text-[#333]">{{ accountInfo?.database_count ?? '—' }}</span>
+            </div>
+            <div class="flex items-start justify-between gap-3">
+              <span class="text-[#8a8a8a] shrink-0">数据目录</span>
+              <span class="break-all text-right text-[#444]">{{ accountInfo?.path || (selectedAccount ? `output/databases/${selectedAccount}` : '—') }}</span>
+            </div>
+            <div class="flex items-start justify-between gap-3">
+              <span class="text-[#8a8a8a] shrink-0">最近会话库更新时间</span>
+              <span class="text-[#444]">{{ sessionUpdatedAtText }}</span>
+            </div>
+          </div>
+        </template>
+
+        <div class="rounded-[8px] border border-amber-200 bg-amber-50 px-3 py-2 text-[12px] leading-relaxed text-amber-900">
+          仅删除本项目中的该账号解析数据/缓存/编辑记录，不会删除微信客户端中的任何聊天内容或账号数据。
+        </div>
+
+        <button
+          type="button"
+          class="w-full rounded-[8px] border border-red-200 bg-red-50 px-3 py-2 text-[12px] font-medium text-red-700 transition hover:bg-red-100 disabled:cursor-not-allowed disabled:opacity-50"
+          :disabled="!selectedAccount || accountDeleteLoading"
+          @click="deleteCurrentAccountData"
+        >
+          {{ accountDeleteLoading ? '删除中...' : '删除当前账号的项目数据' }}
+        </button>
+        <div class="text-[11px] text-[#8a8a8a]">删除成功后将自动返回引导页。</div>
+
+        <div v-if="accountInfoError" class="text-[11px] text-red-600 whitespace-pre-wrap">{{ accountInfoError }}</div>
+        <div v-if="accountDeleteError" class="text-[11px] text-red-600 whitespace-pre-wrap">{{ accountDeleteError }}</div>
       </div>
     </div>
   </div>
@@ -202,9 +301,130 @@ const { privacyMode } = storeToRefs(privacyStore)
 const realtimeStore = useChatRealtimeStore()
 const { enabled: realtimeEnabled, available: realtimeAvailable, checking: realtimeChecking, statusError: realtimeStatusError, toggling: realtimeToggling } = storeToRefs(realtimeStore)
 const { open: settingsDialogOpen, openDialog: openSettingsDialog } = useSettingsDialog()
+const { getChatAccountInfo, deleteChatAccount } = useApi()
+
+const accountDialogOpen = ref(false)
+const accountInfoLoading = ref(false)
+const accountInfoError = ref('')
+const accountInfo = ref(null)
+const accountDeleteLoading = ref(false)
+const accountDeleteError = ref('')
+const accountInfoApiUnsupported = ref(false)
+const deleteAccountApiUnsupported = ref(false)
+
+const sessionUpdatedAtText = computed(() => {
+  const ts = Number(accountInfo.value?.session_updated_at || 0)
+  if (!Number.isFinite(ts) || ts <= 0) return '—'
+  try {
+    return new Date(ts * 1000).toLocaleString('zh-CN')
+  } catch {
+    return '—'
+  }
+})
+
+const isNotFoundError = (error) => {
+  const status = Number(
+    error?.statusCode
+    ?? error?.status
+    ?? error?.response?.status
+    ?? error?.data?.statusCode
+    ?? 0
+  )
+  return status === 404
+}
+
+const loadAccountInfoByDesktopBridge = async (account) => {
+  if (!process.client || typeof window === 'undefined') return null
+  if (!window.wechatDesktop?.getAccountInfo) return null
+  const res = await window.wechatDesktop.getAccountInfo(account)
+  return res && typeof res === 'object' ? res : null
+}
+
+const loadAccountInfo = async () => {
+  accountInfoLoading.value = true
+  accountInfoError.value = ''
+  const account = String(selectedAccount.value || '').trim()
+  if (!account) {
+    accountInfo.value = null
+    accountInfoLoading.value = false
+    return
+  }
+  try {
+    let lastError = null
+    if (!accountInfoApiUnsupported.value) {
+      try {
+        const res = await getChatAccountInfo({ account })
+        if (res?.status !== 'success') {
+          throw new Error(res?.message || '读取账号信息失败')
+        }
+        accountInfo.value = res
+        return
+      } catch (e) {
+        lastError = e
+        if (isNotFoundError(e)) {
+          accountInfoApiUnsupported.value = true
+        }
+      }
+    }
+
+    try {
+      const fallback = await loadAccountInfoByDesktopBridge(account)
+      if (fallback?.status === 'success') {
+        accountInfo.value = fallback
+        accountInfoError.value = ''
+        return
+      }
+      if (fallback && fallback?.status && fallback.status !== 'success') {
+        lastError = new Error(fallback?.message || '读取账号信息失败')
+      } else if (!lastError) {
+        lastError = new Error('读取账号信息失败')
+      }
+    } catch (fallbackErr) {
+      if (!lastError) {
+        lastError = fallbackErr
+      }
+    }
+
+    accountInfo.value = null
+    accountInfoError.value = lastError?.message || '读取账号信息失败'
+  } finally {
+    accountInfoLoading.value = false
+  }
+}
+
+const deleteAccountDataByDesktopBridge = async (account) => {
+  if (!process.client || typeof window === 'undefined') return null
+  if (!window.wechatDesktop?.deleteAccountData) return null
+  const res = await window.wechatDesktop.deleteAccountData(account)
+  return res && typeof res === 'object' ? res : { status: 'success' }
+}
+
+const openAccountDialog = async () => {
+  accountDialogOpen.value = true
+  accountDeleteError.value = ''
+  await loadAccountInfo()
+}
+
+const closeAccountDialog = () => {
+  if (accountDeleteLoading.value) return
+  accountDialogOpen.value = false
+}
+
+watch(selectedAccount, () => {
+  if (!accountDialogOpen.value) return
+  void loadAccountInfo()
+})
 
 onMounted(async () => {
   await chatAccounts.ensureLoaded()
+  if (process.client && typeof window !== 'undefined') {
+    window.addEventListener('keydown', onWindowKeydown)
+  }
+})
+
+onBeforeUnmount(() => {
+  if (!process.client || typeof window === 'undefined') return
+  window.removeEventListener('keydown', onWindowKeydown)
 })
 
 const apiBase = useApiBase()
@@ -240,10 +460,73 @@ const goWrapped = async () => {
   await navigateTo('/wrapped')
 }
 
+const goGuide = async () => {
+  await navigateTo('/')
+}
+
 const goSettings = () => {
   openSettingsDialog()
 }
 
+const onWindowKeydown = (event) => {
+  if (event?.key !== 'Escape') return
+  if (!accountDialogOpen.value) return
+  event.preventDefault()
+  closeAccountDialog()
+}
+
+const deleteCurrentAccountData = async () => {
+  const account = String(selectedAccount.value || '').trim()
+  if (!account || accountDeleteLoading.value) return
+
+  if (process.client && typeof window !== 'undefined') {
+    const confirmed = window.confirm(
+      '将删除当前账号在本项目中的数据（解析缓存、编辑记录、导出缓存等），不会删除微信客户端内容。确认删除吗？'
+    )
+    if (!confirmed) return
+  }
+
+  accountDeleteLoading.value = true
+  accountDeleteError.value = ''
+  try {
+    let deleted = false
+    let lastError = null
+
+    if (!deleteAccountApiUnsupported.value) {
+      try {
+        const apiRes = await deleteChatAccount({ account })
+        if (apiRes?.status && apiRes.status !== 'success') {
+          throw new Error(apiRes?.message || '删除账号数据失败')
+        }
+        deleted = true
+      } catch (apiErr) {
+        lastError = apiErr
+        if (isNotFoundError(apiErr)) {
+          deleteAccountApiUnsupported.value = true
+        }
+      }
+    }
+
+    if (!deleted) {
+      const desktopRes = await deleteAccountDataByDesktopBridge(account)
+      if (!desktopRes) {
+        throw lastError || new Error('删除账号数据失败')
+      }
+      if (desktopRes?.status && desktopRes.status !== 'success') {
+        throw new Error(desktopRes?.message || '删除账号数据失败')
+      }
+    }
+
+    accountDialogOpen.value = false
+    await chatAccounts.ensureLoaded({ force: true })
+    await navigateTo('/')
+  } catch (e) {
+    accountDeleteError.value = e?.message || '删除账号数据失败'
+  } finally {
+    accountDeleteLoading.value = false
+  }
+}
+
 const realtimeBusy = computed(() => !!realtimeChecking.value || !!realtimeToggling.value)
 
 const realtimeTitle = computed(() => {

frontend/composables/useApi.js

@@ -60,6 +60,22 @@ export const useApi = () => {
     return await request('/chat/accounts')
   }
 
+  const getChatAccountInfo = async (params = {}) => {
+    const query = new URLSearchParams()
+    if (params && params.account) query.set('account', params.account)
+    const url = '/chat/account_info' + (query.toString() ? `?${query.toString()}` : '')
+    return await request(url)
+  }
+
+  const deleteChatAccount = async (params = {}) => {
+    const account = String(params?.account || '').trim()
+    if (!account) throw new Error('Missing account')
+    const query = new URLSearchParams()
+    query.set('account', account)
+    const url = '/chat/account' + (query.toString() ? `?${query.toString()}` : '')
+    return await request(url, { method: 'DELETE' })
+  }
+
   const listChatSessions = async (params = {}) => {
     const query = new URLSearchParams()
     if (params && params.account) query.set('account', params.account)
@@ -540,6 +556,8 @@ export const useApi = () => {
     decryptDatabase,
     healthCheck,
     listChatAccounts,
+    getChatAccountInfo,
+    deleteChatAccount,
     listChatSessions,
     listChatMessages,
     getChatMessageRaw,

frontend/pages/chat/[[username]].vue

@@ -589,17 +589,16 @@
                         :class="message.isSent ? 'bg-[#95EC69] text-black bubble-tail-r' : 'bg-white text-gray-800 bubble-tail-l'">
                         {{ message.content }}
                       </div>
-                      <a
+                      <button
                         v-if="message.videoThumbUrl && message.videoUrl"
-                        :href="message.videoUrl"
-                        target="_blank"
-                        rel="noreferrer"
+                        type="button"
                         class="absolute inset-0 flex items-center justify-center"
+                        @click.stop="openVideoPreview(message.videoUrl, message.videoThumbUrl)"
                       >
                         <div class="w-12 h-12 rounded-full bg-black/45 flex items-center justify-center">
                           <svg class="w-6 h-6 text-white" fill="currentColor" viewBox="0 0 24 24"><path d="M8 5v14l11-7z"/></svg>
                         </div>
-                      </a>
+                      </button>
                       <div class="absolute inset-0 flex items-center justify-center" v-else-if="message.videoThumbUrl">
                         <div class="w-12 h-12 rounded-full bg-black/45 flex items-center justify-center">
                           <svg class="w-6 h-6 text-white" fill="currentColor" viewBox="0 0 24 24"><path d="M8 5v14l11-7z"/></svg>
@@ -1388,6 +1387,40 @@
       </button>
     </div>
 
+    <!-- 视频预览弹窗 (全局固定定位) -->
+    <div
+      v-if="previewVideoUrl"
+      class="fixed inset-0 z-[13000] bg-black/90 flex items-center justify-center"
+      @click="closeVideoPreview"
+    >
+      <div class="relative max-w-[92vw] max-h-[92vh] flex flex-col items-center" @click.stop>
+        <video
+          :key="previewVideoUrl"
+          :src="previewVideoUrl"
+          :poster="previewVideoPosterUrl"
+          class="max-w-[90vw] max-h-[90vh] object-contain"
+          controls
+          autoplay
+          playsinline
+          @error="onPreviewVideoError"
+        ></video>
+        <div
+          v-if="previewVideoError"
+          class="mt-3 text-xs text-red-200 whitespace-pre-wrap text-center max-w-[90vw]"
+        >
+          {{ previewVideoError }}
+        </div>
+      </div>
+      <button
+        class="absolute top-4 right-4 text-white/80 hover:text-white p-2 rounded-full bg-black/30 hover:bg-black/50 transition-colors"
+        @click.stop="closeVideoPreview"
+      >
+        <svg class="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+          <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18L18 6M6 6l12 12"/>
+        </svg>
+      </button>
+    </div>
+
     <!-- 浮动窗口（可拖动）：合并消息 / 链接卡片 -->
     <div
       v-for="win in floatingWindows"
@@ -1561,17 +1594,16 @@
                         @error="onChatHistoryVideoThumbError(rec)"
                       />
                       <div v-else class="px-3 py-2 text-sm text-gray-700">{{ rec.content || '[视频]' }}</div>
-                      <a
+                      <button
                         v-if="rec.videoUrl"
-                        :href="rec.videoUrl"
-                        target="_blank"
-                        rel="noreferrer"
+                        type="button"
                         class="absolute inset-0 flex items-center justify-center"
+                        @click.stop="openVideoPreview(rec.videoUrl, rec.videoThumbUrl)"
                       >
                         <div class="w-12 h-12 rounded-full bg-black/45 flex items-center justify-center">
                           <svg class="w-6 h-6 text-white" fill="currentColor" viewBox="0 0 24 24"><path d="M8 5v14l11-7z"/></svg>
                         </div>
-                      </a>
+                      </button>
                       <div
                         v-if="rec.videoDuration"
                         class="absolute bottom-2 right-2 text-xs text-white bg-black/55 px-1.5 py-0.5 rounded"
@@ -1814,17 +1846,16 @@
                     />
                     <div v-else class="px-3 py-2 text-sm text-gray-700">{{ rec.content || '[视频]' }}</div>
 
-                    <a
+                    <button
                       v-if="rec.videoThumbUrl && rec.videoUrl"
-                      :href="rec.videoUrl"
-                      target="_blank"
-                      rel="noreferrer"
+                      type="button"
                       class="absolute inset-0 flex items-center justify-center"
+                      @click.stop="openVideoPreview(rec.videoUrl, rec.videoThumbUrl)"
                     >
                       <div class="w-12 h-12 rounded-full bg-black/45 flex items-center justify-center">
                         <svg class="w-6 h-6 text-white" fill="currentColor" viewBox="0 0 24 24"><path d="M8 5v14l11-7z"/></svg>
                       </div>
-                    </a>
+                    </button>
                     <div class="absolute inset-0 flex items-center justify-center" v-else-if="rec.videoThumbUrl">
                       <div class="w-12 h-12 rounded-full bg-black/45 flex items-center justify-center">
                         <svg class="w-6 h-6 text-white" fill="currentColor" viewBox="0 0 24 24"><path d="M8 5v14l11-7z"/></svg>
@@ -4070,15 +4101,42 @@ const scrollToMessageId = async (id) => {
 
 // 图片预览状态
 const previewImageUrl = ref(null)
+const previewVideoUrl = ref(null)
+const previewVideoPosterUrl = ref('')
+const previewVideoError = ref('')
 
 const openImagePreview = (url) => {
+  if (!process.client) return
   previewImageUrl.value = url
   document.body.style.overflow = 'hidden'
 }
 
 const closeImagePreview = () => {
+  if (!process.client) return
   previewImageUrl.value = null
-  document.body.style.overflow = ''
+  if (!previewVideoUrl.value) document.body.style.overflow = ''
+}
+
+const openVideoPreview = (url, poster) => {
+  if (!process.client) return
+  const u = String(url || '').trim()
+  if (!u) return
+  previewVideoError.value = ''
+  previewVideoPosterUrl.value = String(poster || '').trim()
+  previewVideoUrl.value = u
+  document.body.style.overflow = 'hidden'
+}
+
+const closeVideoPreview = () => {
+  if (!process.client) return
+  previewVideoUrl.value = null
+  previewVideoPosterUrl.value = ''
+  previewVideoError.value = ''
+  if (!previewImageUrl.value) document.body.style.overflow = ''
+}
+
+const onPreviewVideoError = () => {
+  previewVideoError.value = '视频加载失败。'
 }
 
 const voiceRefs = ref({})
@@ -7047,9 +7105,7 @@ const openChatHistoryQuote = (rec) => {
   if (!url) return
 
   if (kind === 'video') {
-    try {
-      window.open(url, '_blank', 'noreferrer')
-    } catch {}
+    openVideoPreview(url, q?.thumbUrl)
     return
   }
 
@@ -7392,6 +7448,7 @@ const onGlobalKeyDown = (e) => {
   if (key === 'Escape') {
     if (contextMenu.value.visible) closeContextMenu()
     if (previewImageUrl.value) closeImagePreview()
+    if (previewVideoUrl.value) closeVideoPreview()
     if (Array.isArray(floatingWindows.value) && floatingWindows.value.length) closeTopFloatingWindow()
     if (chatHistoryModalVisible.value) closeChatHistoryModal()
     if (contactProfileCardOpen.value) {
@@ -9311,4 +9368,3 @@ const LinkCard = defineComponent({
   }
 }
 </style>
-

frontend/pages/sns.vue

@@ -638,7 +638,19 @@
 	    >
 	      <div class="relative max-w-[92vw] max-h-[92vh] flex flex-col items-center" @click.stop>
 	        <video
-	          v-if="previewLivePhotoVideoSrc && !previewHasLivePhotoVideoError"
+	          v-if="previewIsVideo"
+	          ref="previewVideoEl"
+	          :key="previewVideoKey"
+	          :src="previewVideoSrc"
+	          :poster="previewVideoPoster"
+	          class="max-w-[90vw] max-h-[70vh] object-contain"
+	          controls
+	          autoplay
+	          playsinline
+	          @error="onPreviewVideoError"
+	        ></video>
+	        <video
+	          v-else-if="previewLivePhotoVideoSrc && !previewHasLivePhotoVideoError"
 	          ref="previewLiveVideoEl"
 	          :src="previewLivePhotoVideoSrc"
 	          :poster="previewSrc"
@@ -651,6 +663,13 @@
 	        ></video>
 	        <img v-else :src="previewSrc" alt="预览" class="max-w-[90vw] max-h-[70vh] object-contain" />
 
+	        <div
+	          v-if="previewIsVideo && previewVideoError"
+	          class="mt-3 text-xs text-red-200 whitespace-pre-wrap text-center max-w-[90vw]"
+	        >
+	          {{ previewVideoError }}
+	        </div>
+
 	      </div>
 
 	      <button
@@ -1756,6 +1775,53 @@ const previewSrc = computed(() => {
   return getMediaPreviewSrc(ctx.post, ctx.media, ctx.idx)
 })
 
+const previewVideoEl = ref(null)
+const previewVideoMode = ref('') // 'local' | 'remote' | 'raw'
+const previewVideoError = ref('')
+const previewVideoTried = reactive({ local: false, remote: false, raw: false })
+
+const resetPreviewVideo = () => {
+  previewVideoMode.value = ''
+  previewVideoError.value = ''
+  previewVideoTried.local = false
+  previewVideoTried.remote = false
+  previewVideoTried.raw = false
+}
+
+const previewIsVideo = computed(() => {
+  const ctx = previewCtx.value
+  if (!ctx) return false
+  return Number(ctx.media?.type || 0) === 6
+})
+
+const previewVideoPoster = computed(() => {
+  const ctx = previewCtx.value
+  if (!ctx) return ''
+  if (Number(ctx.media?.type || 0) !== 6) return ''
+  return getMediaThumbSrc(ctx.post, ctx.media, ctx.idx) || ''
+})
+
+const previewVideoSrc = computed(() => {
+  const ctx = previewCtx.value
+  if (!ctx) return ''
+  if (Number(ctx.media?.type || 0) !== 6) return ''
+
+  const local = getSnsVideoUrl(ctx.post?.id, ctx.media?.id)
+  const remote = getSnsRemoteVideoSrc(ctx.post, ctx.media)
+  const raw = upgradeTencentHttps(String(ctx.media?.url || '').trim())
+
+  const mode = String(previewVideoMode.value || '').toLowerCase()
+  if (mode === 'local') return local
+  if (mode === 'remote') return remote
+  if (mode === 'raw') return raw
+  return local || remote || raw || ''
+})
+
+const previewVideoKey = computed(() => {
+  if (!previewIsVideo.value) return ''
+  return `${String(previewVideoMode.value || '')}:${String(previewVideoSrc.value || '')}`
+})
+
 const previewLivePhotoVideoSrc = computed(() => {
   const ctx = previewCtx.value
   if (!ctx) return ''
@@ -1879,6 +1945,7 @@ const loadPreviewCandidates = async ({ reset }) => {
 
 const openImagePreview = async (post, m, idx = 0) => {
   if (!process.client) return
+  resetPreviewVideo()
   // Stop any background hover-playing live photo when opening the preview.
   activeLivePhotoKey.value = ''
   // Preview is an intentional action; allow retry even if hover playback failed once.
@@ -1898,11 +1965,58 @@ const openImagePreview = async (post, m, idx = 0) => {
   await loadPreviewCandidates({ reset: true })
 }
 
+const openVideoPreview = (post, m, idx = 0) => {
+  if (!process.client) return
+  resetPreviewVideo()
+  activeLivePhotoKey.value = ''
+
+  const local = getSnsVideoUrl(post?.id, m?.id)
+  const remote = getSnsRemoteVideoSrc(post, m)
+  const raw = upgradeTencentHttps(String(m?.url || '').trim())
+
+  if (local) previewVideoMode.value = 'local'
+  else if (remote) previewVideoMode.value = 'remote'
+  else if (raw) previewVideoMode.value = 'raw'
+  else previewVideoError.value = '视频地址缺失。'
+
+  previewCtx.value = { post, media: m, idx: Number(idx) || 0 }
+  previewCandidatesOpen.value = false
+  resetPreviewCandidates()
+  document.body.style.overflow = 'hidden'
+}
+
+const onPreviewVideoError = () => {
+  const ctx = previewCtx.value
+  if (!ctx) return
+  if (Number(ctx.media?.type || 0) !== 6) return
+
+  const current = String(previewVideoMode.value || '').toLowerCase()
+  if (current === 'local') previewVideoTried.local = true
+  if (current === 'remote') previewVideoTried.remote = true
+  if (current === 'raw') previewVideoTried.raw = true
+
+  // Fallback order: local -> remote -> raw
+  const remote = getSnsRemoteVideoSrc(ctx.post, ctx.media)
+  if (!previewVideoTried.remote && remote) {
+    previewVideoMode.value = 'remote'
+    return
+  }
+
+  const raw = upgradeTencentHttps(String(ctx.media?.url || '').trim())
+  if (!previewVideoTried.raw && raw) {
+    previewVideoMode.value = 'raw'
+    return
+  }
+
+  previewVideoError.value = '视频加载失败：可能是本地缓存不存在，或远程下载/解密失败。'
+}
+
 const closeImagePreview = () => {
   if (!process.client) return
   previewCtx.value = null
   previewCandidatesOpen.value = false
   resetPreviewCandidates()
+  resetPreviewVideo()
   document.body.style.overflow = ''
 }
 
@@ -1912,16 +2026,7 @@ const onMediaClick = (post, m, idx = 0) => {
 
   // 视频点击逻辑
   if (mt === 6) {
-    // Open a playable mp4 via backend (downloads+decrypts as needed).
-    const remoteUrl = getSnsRemoteVideoSrc(post, m)
-    if (remoteUrl) {
-      window.open(remoteUrl, '_blank', 'noopener,noreferrer')
-      return
-    }
-
-    // Last-resort: open raw CDN url.
-    const u = String(m?.url || '').trim()
-    if (u) window.open(u, '_blank', 'noopener,noreferrer')
+    openVideoPreview(post, m, idx)
     return
   }
 

src/wechat_decrypt_tool/chat_edit_store.py

@@ -485,3 +485,30 @@ def update_message_edit_local_id(
                 conn.close()
         except Exception:
             pass
+
+
+def delete_account_edits(account: str) -> int:
+    a = str(account or "").strip()
+    if not a:
+        return 0
+
+    conn: Optional[sqlite3.Connection] = None
+    try:
+        conn = _connect()
+        cur = conn.execute(
+            """
+            DELETE FROM message_edits
+            WHERE account = ?
+            """,
+            (a,),
+        )
+        conn.commit()
+        return int(getattr(cur, "rowcount", 0) or 0)
+    except Exception:
+        return 0
+    finally:
+        try:
+            if conn is not None:
+                conn.close()
+        except Exception:
+            pass

src/wechat_decrypt_tool/chat_export_service.py

@@ -53,7 +53,7 @@ from .chat_helpers import (
 )
 from .logging_config import get_logger
 from .media_helpers import (
-    _convert_silk_to_wav,
+    _convert_silk_to_browser_audio,
     _detect_image_media_type,
     _fallback_search_media_by_file_id,
     _read_and_maybe_decrypt_media,
@@ -121,9 +121,10 @@ def _resolve_ui_public_dir() -> Optional[Path]:
     if ui_dir_env:
         candidates.append(Path(ui_dir_env))
 
-    # Repo default: `frontend/.output/public` after `npm --prefix frontend run generate`.
+    # Repo defaults: generated Nuxt output or checked-in desktop UI assets.
     repo_root = Path(__file__).resolve().parents[2]
     candidates.append(repo_root / "frontend" / ".output" / "public")
+    candidates.append(repo_root / "desktop" / "resources" / "ui")
 
     for p in candidates:
         try:
@@ -622,6 +623,68 @@ body { background: #EDEDED; }
 .wce-audio-actions a { font-size: 0.75rem; color: #07c160; text-decoration: none; }
 .wce-audio-actions a:hover { text-decoration: underline; }
 
+/* Voice message fallback styles (keep close to `frontend/pages/chat/[[username]].vue`). */
+.wechat-voice-wrapper { display: flex; width: 100%; position: relative; }
+.wechat-voice-bubble {
+  border-radius: var(--message-radius);
+  position: relative;
+  transition: opacity 0.15s ease;
+  min-width: 80px;
+  max-width: 200px;
+  cursor: pointer;
+}
+.wechat-voice-bubble:hover { opacity: 0.85; }
+.wechat-voice-bubble:active { opacity: 0.7; }
+.wechat-voice-sent { background: #95EC69; }
+.wechat-voice-sent::after {
+  content: '';
+  position: absolute;
+  top: 50%;
+  right: -4px;
+  transform: translateY(-50%) rotate(45deg);
+  width: 10px;
+  height: 10px;
+  background: #95EC69;
+  border-radius: 2px;
+}
+.wechat-voice-received { background: #fff; }
+.wechat-voice-received::before {
+  content: '';
+  position: absolute;
+  top: 50%;
+  left: -4px;
+  transform: translateY(-50%) rotate(45deg);
+  width: 10px;
+  height: 10px;
+  background: #fff;
+  border-radius: 2px;
+}
+.wechat-voice-content { display: flex; align-items: center; padding: 8px 12px; gap: 8px; }
+.wechat-voice-icon { width: 18px; height: 18px; flex-shrink: 0; color: #1a1a1a; }
+.wechat-quote-voice-icon { width: 14px; height: 14px; color: inherit; }
+.voice-icon-sent { transform: scaleX(-1); }
+.wechat-voice-icon.voice-playing .voice-wave-2 { animation: voice-wave-2 1s infinite; }
+.wechat-voice-icon.voice-playing .voice-wave-3 { animation: voice-wave-3 1s infinite; }
+@keyframes voice-wave-2 {
+  0%, 33% { opacity: 0; }
+  34%, 100% { opacity: 1; }
+}
+@keyframes voice-wave-3 {
+  0%, 66% { opacity: 0; }
+  67%, 100% { opacity: 1; }
+}
+.wechat-voice-duration { font-size: 14px; color: #1a1a1a; }
+.wechat-voice-unread {
+  position: absolute;
+  top: 50%;
+  right: -20px;
+  transform: translateY(-50%);
+  width: 8px;
+  height: 8px;
+  border-radius: 50%;
+  background: #e75e58;
+}
+
 /* Index page helpers. */
 .wce-index { min-height: 100vh; background: #EDEDED; }
 .wce-index-container { max-width: 880px; margin: 0 auto; padding: 24px; }
@@ -4958,40 +5021,38 @@ def _write_conversation_html(
                         tw.write(f'                  <div class="{esc_attr(bubble_base_cls + " " + bubble_dir_cls)}">{render_text_with_emojis(msg.get("content") or "")}</div>\n')
                 elif rt == "voice":
                     voice = offline_path(msg, "voice")
-                    if voice:
-                        duration_ms = msg.get("voiceLength")
-                        width = get_voice_width(duration_ms)
-                        seconds = get_voice_duration_in_seconds(duration_ms)
-                        voice_dir_cls = "wechat-voice-sent" if is_sent else "wechat-voice-received"
-                        content_dir_cls = " flex-row-reverse" if is_sent else ""
-                        icon_dir_cls = "voice-icon-sent" if is_sent else "voice-icon-received"
-                        voice_id = str(msg.get("id") or "").strip()
+                    duration_ms = msg.get("voiceLength")
+                    width = get_voice_width(duration_ms)
+                    seconds = get_voice_duration_in_seconds(duration_ms)
+                    voice_dir_cls = "wechat-voice-sent" if is_sent else "wechat-voice-received"
+                    content_dir_cls = " flex-row-reverse" if is_sent else ""
+                    icon_dir_cls = "voice-icon-sent" if is_sent else "voice-icon-received"
+                    voice_id = str(msg.get("id") or "").strip()
 
-                        tw.write('                  <div class="wechat-voice-wrapper">\n')
-                        tw.write(
-                            f'                    <div class="wechat-voice-bubble msg-radius {esc_attr(voice_dir_cls)}" style="width: {esc_attr(width)}" data-voice-id="{esc_attr(voice_id)}">\n'
-                        )
-                        tw.write(f'                      <div class="wechat-voice-content{esc_attr(content_dir_cls)}">\n')
-                        tw.write(
-                            f'                        <svg class="wechat-voice-icon {esc_attr(icon_dir_cls)}" viewBox="0 0 32 32" fill="currentColor">\n'
-                        )
-                        tw.write(
-                            '                          <path d="M10.24 11.616l-4.224 4.192 4.224 4.192c1.088-1.056 1.76-2.56 1.76-4.192s-0.672-3.136-1.76-4.192z"></path>\n'
-                        )
-                        tw.write(
-                            '                          <path class="voice-wave-2" d="M15.199 6.721l-1.791 1.76c1.856 1.888 3.008 4.48 3.008 7.328s-1.152 5.44-3.008 7.328l1.791 1.76c2.336-2.304 3.809-5.536 3.809-9.088s-1.473-6.784-3.809-9.088z"></path>\n'
-                        )
-                        tw.write(
-                            '                          <path class="voice-wave-3" d="M20.129 1.793l-1.762 1.76c3.104 3.168 5.025 7.488 5.025 12.256s-1.921 9.088-5.025 12.256l1.762 1.76c3.648-3.616 5.887-8.544 5.887-14.016s-2.239-10.432-5.887-14.016z"></path>\n'
-                        )
-                        tw.write("                        </svg>\n")
-                        tw.write(f'                        <span class="wechat-voice-duration">{esc_text(seconds)}"</span>\n')
-                        tw.write("                      </div>\n")
-                        tw.write("                    </div>\n")
+                    tw.write('                  <div class="wechat-voice-wrapper">\n')
+                    tw.write(
+                        f'                    <div class="wechat-voice-bubble msg-radius {esc_attr(voice_dir_cls)}" style="width: {esc_attr(width)}" data-voice-id="{esc_attr(voice_id)}">\n'
+                    )
+                    tw.write(f'                      <div class="wechat-voice-content{esc_attr(content_dir_cls)}">\n')
+                    tw.write(
+                        f'                        <svg class="wechat-voice-icon {esc_attr(icon_dir_cls)}" viewBox="0 0 32 32" fill="currentColor">\n'
+                    )
+                    tw.write(
+                        '                          <path d="M10.24 11.616l-4.224 4.192 4.224 4.192c1.088-1.056 1.76-2.56 1.76-4.192s-0.672-3.136-1.76-4.192z"></path>\n'
+                    )
+                    tw.write(
+                        '                          <path class="voice-wave-2" d="M15.199 6.721l-1.791 1.76c1.856 1.888 3.008 4.48 3.008 7.328s-1.152 5.44-3.008 7.328l1.791 1.76c2.336-2.304 3.809-5.536 3.809-9.088s-1.473-6.784-3.809-9.088z"></path>\n'
+                    )
+                    tw.write(
+                        '                          <path class="voice-wave-3" d="M20.129 1.793l-1.762 1.76c3.104 3.168 5.025 7.488 5.025 12.256s-1.921 9.088-5.025 12.256l1.762 1.76c3.648-3.616 5.887-8.544 5.887-14.016s-2.239-10.432-5.887-14.016z"></path>\n'
+                    )
+                    tw.write("                        </svg>\n")
+                    tw.write(f'                        <span class="wechat-voice-duration">{esc_text(seconds)}"</span>\n')
+                    tw.write("                      </div>\n")
+                    tw.write("                    </div>\n")
+                    if voice:
                         tw.write(f'                    <audio src="{esc_attr(voice)}" preload="none" class="hidden"></audio>\n')
-                        tw.write("                  </div>\n")
-                    else:
-                        tw.write(f'                  <div class="{esc_attr(bubble_base_cls + " " + bubble_dir_cls)}">{render_text_with_emojis(msg.get("content") or "")}</div>\n')
+                    tw.write("                  </div>\n")
                 elif rt == "file":
                     fsrc = offline_path(msg, "file")
                     title = str(msg.get("title") or msg.get("content") or "文件").strip()
@@ -5982,13 +6043,9 @@ def _materialize_voice(
     if not isinstance(data, (bytes, bytearray)):
         data = bytes(data)
 
-    wav = _convert_silk_to_wav(data)
-    if wav != data and wav[:4] == b"RIFF":
-        ext = "wav"
-        payload = wav
-    else:
-        ext = "silk"
-        payload = data
+    payload, ext, _media_type = _convert_silk_to_browser_audio(data, preferred_format="mp3")
+    if not payload:
+        return "", False
 
     arc = f"media/voices/voice_{int(server_id)}.{ext}"
     zf.writestr(arc, payload)

src/wechat_decrypt_tool/key_store.py

@@ -67,3 +67,20 @@ def upsert_account_keys_in_store(
         pass
 
     return item
+
+
+def remove_account_keys_from_store(account: str) -> bool:
+    account = str(account or "").strip()
+    if not account:
+        return False
+
+    store = load_account_keys_store()
+    if account not in store:
+        return False
+
+    try:
+        store.pop(account, None)
+        _atomic_write_json(_KEY_STORE_PATH, store)
+        return True
+    except Exception:
+        return False

src/wechat_decrypt_tool/media_helpers.py

@@ -1964,6 +1964,114 @@ def _convert_silk_to_wav(silk_data: bytes) -> bytes:
         return silk_data
 
 
+def _looks_like_mp3(data: bytes) -> bool:
+    if not data:
+        return False
+    if data.startswith(b"ID3"):
+        return True
+    return len(data) >= 2 and data[0] == 0xFF and (data[1] & 0xE0) == 0xE0
+
+
+@lru_cache(maxsize=1)
+def _find_ffmpeg_executable() -> str:
+    import shutil
+
+    env_value = str(os.environ.get("WECHAT_TOOL_FFMPEG") or "").strip()
+    if env_value:
+        resolved = shutil.which(env_value)
+        if resolved:
+            return resolved
+        candidate = Path(env_value).expanduser()
+        if candidate.is_file():
+            return str(candidate)
+
+    return shutil.which("ffmpeg") or ""
+
+
+def _convert_wav_to_mp3(wav_data: bytes) -> bytes:
+    import subprocess
+    import tempfile
+
+    if not wav_data or not wav_data.startswith(b"RIFF"):
+        return b""
+
+    ffmpeg_exe = _find_ffmpeg_executable()
+    if not ffmpeg_exe:
+        return b""
+
+    try:
+        with tempfile.TemporaryDirectory() as tmp_dir:
+            tmp_path = Path(tmp_dir)
+            wav_path = tmp_path / "voice.wav"
+            mp3_path = tmp_path / "voice.mp3"
+            wav_path.write_bytes(wav_data)
+
+            proc = subprocess.run(
+                [
+                    ffmpeg_exe,
+                    "-y",
+                    "-hide_banner",
+                    "-loglevel",
+                    "error",
+                    "-i",
+                    str(wav_path),
+                    "-vn",
+                    "-codec:a",
+                    "libmp3lame",
+                    "-q:a",
+                    "4",
+                    str(mp3_path),
+                ],
+                check=False,
+                capture_output=True,
+            )
+            if proc.returncode != 0 or not mp3_path.exists():
+                err = proc.stderr.decode("utf-8", errors="ignore").strip()
+                if err:
+                    logger.warning(f"WAV to MP3 conversion failed: {err}")
+                return b""
+
+            mp3_data = mp3_path.read_bytes()
+            if _looks_like_mp3(mp3_data):
+                return mp3_data
+    except Exception as e:
+        logger.warning(f"WAV to MP3 conversion failed: {e}")
+
+    return b""
+
+
+def _convert_silk_to_browser_audio(
+    silk_data: bytes,
+    *,
+    preferred_format: str = "mp3",
+) -> tuple[bytes, str, str]:
+    """Convert SILK audio to a browser-friendly format.
+
+    Returns `(payload, ext, media_type)`.
+    Preference order:
+      1) MP3 if ffmpeg is available
+      2) WAV if SILK decoding succeeds
+      3) original SILK bytes as a last-resort fallback
+    """
+
+    data = bytes(silk_data or b"")
+    if not data:
+        return b"", "silk", "audio/silk"
+
+    if _looks_like_mp3(data):
+        return data, "mp3", "audio/mpeg"
+
+    wav_data = data if data.startswith(b"RIFF") else _convert_silk_to_wav(data)
+    if wav_data.startswith(b"RIFF"):
+        if str(preferred_format or "").strip().lower() == "mp3":
+            mp3_data = _convert_wav_to_mp3(wav_data)
+            if mp3_data:
+                return mp3_data, "mp3", "audio/mpeg"
+        return wav_data, "wav", "audio/wav"
+
+    return data, "silk", "audio/silk"
+
+
 def _resolve_media_path_for_kind(
     account_dir: Path,
     kind: str,

src/wechat_decrypt_tool/routers/chat.py

@@ -3,6 +3,7 @@ import re
 import sqlite3
 import asyncio
 import json
+import shutil
 import time
 import threading
 from datetime import datetime, timedelta
@@ -67,6 +68,8 @@ from ..chat_helpers import (
 )
 from ..media_helpers import _resolve_account_db_storage_dir, _try_find_decrypted_resource
 from .. import chat_edit_store
+from ..app_paths import get_output_dir
+from ..key_store import remove_account_keys_from_store
 from ..path_fix import PathFixRoute
 from ..session_last_message import (
     build_session_last_message_table,
@@ -3496,6 +3499,85 @@ async def list_chat_accounts():
     }
 
 
+@router.get("/api/chat/account_info", summary="获取当前账号信息")
+def get_chat_account_info(account: Optional[str] = None):
+    account_dir = _resolve_account_dir(account)
+    db_files = sorted([p.name for p in account_dir.glob("*.db") if p.is_file()])
+
+    session_db = account_dir / "session.db"
+    session_updated_at = 0
+    try:
+        session_updated_at = int(session_db.stat().st_mtime)
+    except Exception:
+        session_updated_at = 0
+
+    return {
+        "status": "success",
+        "account": account_dir.name,
+        "path": str(account_dir),
+        "database_count": len(db_files),
+        "databases": db_files,
+        "session_updated_at": session_updated_at,
+    }
+
+
+@router.delete("/api/chat/account", summary="删除当前账号在本项目中的数据")
+def delete_chat_account(account: str):
+    account_name = str(account or "").strip()
+    if not account_name:
+        raise HTTPException(status_code=400, detail="Missing account.")
+
+    account_dir = _resolve_account_dir(account_name)
+
+    # Best-effort: close realtime connections first, otherwise Windows may keep db files locked.
+    try:
+        WCDB_REALTIME.disconnect(account_name)
+    except Exception:
+        pass
+
+    with _REALTIME_SYNC_MU:
+        _REALTIME_SYNC_ALL_LOCKS.pop(account_name, None)
+        stale_lock_keys = [k for k in _REALTIME_SYNC_LOCKS.keys() if k and k[0] == account_name]
+        for k in stale_lock_keys:
+            _REALTIME_SYNC_LOCKS.pop(k, None)
+
+    removed_edit_count = 0
+    try:
+        removed_edit_count = int(chat_edit_store.delete_account_edits(account_name) or 0)
+    except Exception:
+        removed_edit_count = 0
+
+    removed_key_cache = False
+    try:
+        removed_key_cache = bool(remove_account_keys_from_store(account_name))
+    except Exception:
+        removed_key_cache = False
+
+    output_dir = get_output_dir()
+    exports_dir = output_dir / "exports" / account_name
+    if exports_dir.exists():
+        try:
+            shutil.rmtree(exports_dir)
+        except Exception:
+            # Ignore export cleanup failure; account dir removal is the core operation.
+            pass
+
+    try:
+        shutil.rmtree(account_dir)
+    except Exception as e:
+        raise HTTPException(status_code=500, detail=f"删除账号数据失败：{e}")
+
+    accounts = _list_decrypted_accounts()
+    return {
+        "status": "success",
+        "deleted_account": account_name,
+        "accounts": accounts,
+        "default_account": accounts[0] if accounts else None,
+        "removed_edit_count": removed_edit_count,
+        "removed_key_cache": removed_key_cache,
+    }
+
+
 @router.get("/api/chat/sessions", summary="获取会话列表（聊天左侧列表）")
 def list_chat_sessions(
     request: Request,

src/wechat_decrypt_tool/routers/chat_media.py

@@ -33,7 +33,7 @@ from ..avatar_cache import (
 )
 from ..logging_config import get_logger
 from ..media_helpers import (
-    _convert_silk_to_wav,
+    _convert_silk_to_browser_audio,
     _decrypt_emoticon_aes_cbc,
     _detect_image_extension,
     _detect_image_media_type,
@@ -1762,12 +1762,12 @@ async def get_chat_voice(server_id: int, account: Optional[str] = None):
     if not isinstance(data, (bytes, bytearray)):
         data = bytes(data)
 
-    # Try to convert SILK to WAV for browser playback
-    wav_data = _convert_silk_to_wav(data)
-    if wav_data != data:
+    payload, ext, media_type = _convert_silk_to_browser_audio(data, preferred_format="mp3")
+    if payload and ext != "silk":
         return Response(
-            content=wav_data,
-            media_type="audio/wav",
+            content=payload,
+            media_type=media_type,
+            headers={"Content-Disposition": f"inline; filename=voice_{int(server_id)}.{ext}"},
         )
 
     # Fallback to raw SILK if conversion fails
@@ -1821,11 +1821,16 @@ async def open_chat_media_folder(
         if not isinstance(data, (bytes, bytearray)):
             data = bytes(data)
 
+        payload, ext, _media_type = _convert_silk_to_browser_audio(data, preferred_format="mp3")
+        if not payload:
+            payload = data
+            ext = "silk"
+
         export_dir = account_dir / "_exports"
         export_dir.mkdir(parents=True, exist_ok=True)
-        p = export_dir / f"voice_{int(server_id)}.silk"
+        p = export_dir / f"voice_{int(server_id)}.{ext}"
         try:
-            p.write_bytes(data)
+            p.write_bytes(payload)
         except Exception as e:
             raise HTTPException(status_code=500, detail=f"Failed to export voice: {e}")
     else:

tests/test_chat_export_html_format.py

@@ -1,6 +1,8 @@
 import os
 import json
 import hashlib
+import logging
+import re
 import sqlite3
 import sys
 import unittest
@@ -243,6 +245,22 @@ class TestChatExportHtmlFormat(unittest.TestCase):
         self._seed_media_files(account_dir)
         return account_dir
 
+    def _insert_missing_voice_message(self, account_dir: Path, *, username: str, server_id: int, duration_ms: int) -> None:
+        conn = sqlite3.connect(str(account_dir / "message_0.db"))
+        try:
+            table_name = f"msg_{hashlib.md5(username.encode('utf-8')).hexdigest()}"
+            row = conn.execute(f"SELECT COALESCE(MAX(local_id), 0), COALESCE(MAX(sort_seq), 0) FROM {table_name}").fetchone()
+            next_local_id = int((row[0] or 0)) + 1
+            next_sort_seq = int((row[1] or 0)) + 1
+            voice_xml = f'<msg><voicemsg voicelength="{int(duration_ms)}" /></msg>'
+            conn.execute(
+                f"INSERT INTO {table_name} (local_id, server_id, local_type, sort_seq, real_sender_id, create_time, message_content, compress_content) VALUES (?, ?, ?, ?, ?, ?, ?, ?)",
+                (next_local_id, int(server_id), 34, next_sort_seq, 2, 1735689700, voice_xml, None),
+            )
+            conn.commit()
+        finally:
+            conn.close()
+
     def _create_job(self, manager, *, account: str, username: str):
         job = manager.create_job(
             account=account,
@@ -283,7 +301,14 @@ class TestChatExportHtmlFormat(unittest.TestCase):
             try:
                 os.environ["WECHAT_TOOL_DATA_DIR"] = str(root)
                 svc = self._reload_export_modules()
-                job = self._create_job(svc.CHAT_EXPORT_MANAGER, account=account, username=username)
+                original_converter = svc._convert_silk_to_browser_audio
+                svc._convert_silk_to_browser_audio = (
+                    lambda data, preferred_format="mp3": (bytes(data or b""), "silk", "audio/silk")
+                )
+                try:
+                    job = self._create_job(svc.CHAT_EXPORT_MANAGER, account=account, username=username)
+                finally:
+                    svc._convert_silk_to_browser_audio = original_converter
                 self.assertEqual(job.status, "done", msg=job.error)
 
                 self.assertTrue(job.zip_path and job.zip_path.exists())
@@ -332,6 +357,8 @@ class TestChatExportHtmlFormat(unittest.TestCase):
 
                     css_text = zf.read("assets/wechat-chat-export.css").decode("utf-8", errors="ignore")
                     self.assertIn("wechat-transfer-card", css_text)
+                    self.assertRegex(css_text, re.compile(r"\.wechat-voice-sent(?::|::)after"))
+                    self.assertRegex(css_text, re.compile(r"\.wechat-voice-received(?::|::)before"))
                     self.assertNotIn("wechat-transfer-card[data-v-", css_text)
                     self.assertNotIn("bento-container", css_text)
 
@@ -346,6 +373,87 @@ class TestChatExportHtmlFormat(unittest.TestCase):
                     self.assertIn("wxemoji/Expression_1@2x.png", names)
                     self.assertIn("../../wxemoji/Expression_1@2x.png", html_text)
             finally:
+                logging.shutdown()
+                if prev_data is None:
+                    os.environ.pop("WECHAT_TOOL_DATA_DIR", None)
+                else:
+                    os.environ["WECHAT_TOOL_DATA_DIR"] = prev_data
+
+    def test_html_export_prefers_mp3_for_voice_assets(self):
+        with TemporaryDirectory() as td:
+            root = Path(td)
+            account = "wxid_test"
+            username = "wxid_friend"
+            self._prepare_account(root, account=account, username=username)
+
+            prev_data = os.environ.get("WECHAT_TOOL_DATA_DIR")
+            try:
+                os.environ["WECHAT_TOOL_DATA_DIR"] = str(root)
+                svc = self._reload_export_modules()
+
+                original_converter = svc._convert_silk_to_browser_audio
+                svc._convert_silk_to_browser_audio = (
+                    lambda data, preferred_format="mp3": (b"ID3FAKE_MP3_DATA", "mp3", "audio/mpeg")
+                )
+                try:
+                    job = self._create_job(svc.CHAT_EXPORT_MANAGER, account=account, username=username)
+                finally:
+                    svc._convert_silk_to_browser_audio = original_converter
+
+                self.assertEqual(job.status, "done", msg=job.error)
+
+                self.assertTrue(job.zip_path and job.zip_path.exists())
+                with zipfile.ZipFile(job.zip_path, "r") as zf:
+                    names = set(zf.namelist())
+                    voice_path = f"media/voices/voice_{self._VOICE_SERVER_ID}.mp3"
+                    self.assertIn(voice_path, names)
+                    self.assertNotIn(f"media/voices/voice_{self._VOICE_SERVER_ID}.wav", names)
+
+                    html_path = next((n for n in names if n.endswith("/messages.html")), "")
+                    self.assertTrue(html_path)
+                    html_text = zf.read(html_path).decode("utf-8")
+                    self.assertIn(f"../../{voice_path}", html_text)
+            finally:
+                logging.shutdown()
+                if prev_data is None:
+                    os.environ.pop("WECHAT_TOOL_DATA_DIR", None)
+                else:
+                    os.environ["WECHAT_TOOL_DATA_DIR"] = prev_data
+
+    def test_html_export_keeps_voice_bubble_when_audio_file_missing(self):
+        with TemporaryDirectory() as td:
+            root = Path(td)
+            account = "wxid_test"
+            username = "wxid_friend"
+            account_dir = self._prepare_account(root, account=account, username=username)
+            self._insert_missing_voice_message(account_dir, username=username, server_id=999999, duration_ms=6543)
+
+            prev_data = os.environ.get("WECHAT_TOOL_DATA_DIR")
+            try:
+                os.environ["WECHAT_TOOL_DATA_DIR"] = str(root)
+                svc = self._reload_export_modules()
+                original_converter = svc._convert_silk_to_browser_audio
+                svc._convert_silk_to_browser_audio = (
+                    lambda data, preferred_format="mp3": (bytes(data or b""), "silk", "audio/silk")
+                )
+                try:
+                    job = self._create_job(svc.CHAT_EXPORT_MANAGER, account=account, username=username)
+                finally:
+                    svc._convert_silk_to_browser_audio = original_converter
+                self.assertEqual(job.status, "done", msg=job.error)
+
+                self.assertTrue(job.zip_path and job.zip_path.exists())
+                with zipfile.ZipFile(job.zip_path, "r") as zf:
+                    names = set(zf.namelist())
+                    html_path = next((n for n in names if n.endswith("/messages.html")), "")
+                    self.assertTrue(html_path)
+                    html_text = zf.read(html_path).decode("utf-8")
+                    self.assertIn("wechat-voice-wrapper", html_text)
+                    self.assertIn('data-render-type="voice"', html_text)
+                    self.assertIn('data-voice-id="message_0:msg_d5616d78f22fe35c632f66cabecfc82d:11"', html_text)
+                    self.assertIn('class="wechat-voice-duration">7"</span>', html_text)
+            finally:
+                logging.shutdown()
                 if prev_data is None:
                     os.environ.pop("WECHAT_TOOL_DATA_DIR", None)
                 else:

tests/test_chat_export_html_paging.py

@@ -1,6 +1,7 @@
 import os
 import json
 import hashlib
+import logging
 import sqlite3
 import sys
 import unittest
@@ -215,6 +216,7 @@ class TestChatExportHtmlPaging(unittest.TestCase):
                     page1_text = zf.read(page1_js).decode("utf-8", errors="ignore")
                     self.assertIn("MSG0001", page1_text)
             finally:
+                logging.shutdown()
                 if prev_data is None:
                     os.environ.pop("WECHAT_TOOL_DATA_DIR", None)
                 else: