fix(web-mode): consolidate Tauri event subscription helper to silence transformCallback errors (#256)

- Add shared safeTauriListen helper in tauri-api.js that returns a noop
  unsubscriber when running outside Tauri, so dynamic-importing
  @tauri-apps/api/event in the browser no longer throws
  'Cannot read properties of undefined (reading transformCallback)'.
- Replace 4 bare 'await import(@tauri-apps/api/event)' call sites
  (about.js hermes upgrade button + channels.js three install/action flows)
  that previously crashed the page on web mode.
- Drop the duplicated local tauriListen helpers in hermes dashboard / chat
  store and route them through the shared helper.

src/pages/about.js

@@ -2,7 +2,7 @@
  * 关于页面
  * 版本信息、项目链接、相关项目、系统环境
  */
-import { api } from '../lib/tauri-api.js'
+import { api, safeTauriListen } from '../lib/tauri-api.js'
 import { toast } from '../components/toast.js'
 import { showUpgradeModal, showConfirm, showContentModal } from '../components/modal.js'
 import { setUpgrading } from '../lib/app-state.js'
@@ -217,8 +217,7 @@ async function loadHermesData(page) {
 
         let unlisten = null
         try {
-          const { listen } = await import('@tauri-apps/api/event')
-          unlisten = await listen('hermes-install-log', (e) => {
+          unlisten = await safeTauriListen('hermes-install-log', (e) => {
             modal.appendLog(String(e.payload))
           })
         } catch (_) {}

src/pages/channels.js

@@ -2,7 +2,7 @@
  * 消息渠道管理
  * 渠道列表 + Agent 对接（多绑定、独立配置、渠道测试）
  */
-import { api, invalidate } from '../lib/tauri-api.js'
+import { api, invalidate, safeTauriListen } from '../lib/tauri-api.js'
 import { toast } from '../components/toast.js'
 import { showContentModal, showConfirm } from '../components/modal.js'
 import { icon } from '../lib/icons.js'
@@ -1530,7 +1530,7 @@ async function openConfigDialog(pid, page, state, accountId) {
         const logBox = actionResultEl.querySelector('#channel-action-log-box')
         const progressBar = actionResultEl.querySelector('#channel-action-progress-bar')
         const progressText = actionResultEl.querySelector('#channel-action-progress-text')
-        const { listen } = await import('@tauri-apps/api/event')
+        const listen = safeTauriListen
         let unlistenLog = null, unlistenProgress = null
         let _qrTimer = null
         const cleanup = () => { unlistenLog?.(); unlistenProgress?.(); clearTimeout(_qrTimer) }
@@ -1923,7 +1923,7 @@ async function openConfigDialog(pid, page, state, accountId) {
       const logBox = actionResultEl.querySelector('#channel-action-log-box')
       const progressBar = actionResultEl.querySelector('#channel-action-progress-bar')
       const progressText = actionResultEl.querySelector('#channel-action-progress-text')
-      const { listen } = await import('@tauri-apps/api/event')
+      const listen = safeTauriListen
       let unlistenLog = null
       let unlistenProgress = null
       let unlistenDone = null
@@ -2110,7 +2110,7 @@ async function openConfigDialog(pid, page, state, accountId) {
           const progressText = resultEl.querySelector('#plugin-progress-text')
           let unlistenLog, unlistenProgress
           try {
-            const { listen } = await import('@tauri-apps/api/event')
+            const listen = safeTauriListen
             unlistenLog = await listen('plugin-log', (e) => {
               logBox.textContent += e.payload + '\n'
               logBox.scrollTop = logBox.scrollHeight