diff --git a/.gitignore b/.gitignore
index 25a15a4..d329e26 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,3 +17,8 @@ __pycache__/
 # OS
 .DS_Store
 Thumbs.db
+
+# Archives
+*.zip
+*.tar.gz
+*.7z
diff --git a/admin-web/src/main.js b/admin-web/src/main.js
index c3b0713..8814539 100644
--- a/admin-web/src/main.js
+++ b/admin-web/src/main.js
@@ -5,6 +5,23 @@ import './styles/theme.css'
 
 Vue.config.productionTip = false
 
+Vue.config.errorHandler = (err, vm, info) => {
+  console.error('[vue error]', info, err)
+}
+
+Vue.config.warnHandler = (msg, vm, trace) => {
+  console.warn('[vue warn]', msg, trace)
+}
+
+window.addEventListener('unhandledrejection', (event) => {
+  console.warn('[unhandled rejection]', event.reason)
+  event.preventDefault()
+})
+
+window.addEventListener('error', (event) => {
+  console.error('[window error]', event.error || event.message)
+})
+
 new Vue({
   router,
   render: (h) => h(App)
diff --git a/admin-web/src/utils/feedback.js b/admin-web/src/utils/feedback.js
index 8dc305c..7d4d83b 100644
--- a/admin-web/src/utils/feedback.js
+++ b/admin-web/src/utils/feedback.js
@@ -57,3 +57,42 @@ export function previewImage(urls, current) {
   if (!urls || !urls.length) return
   ensurePreview().open({ urls, current })
 }
+
+export async function copyText(text) {
+  if (text === undefined || text === null) return false
+  const value = String(text)
+
+  if (navigator.clipboard && window.isSecureContext) {
+    try {
+      await navigator.clipboard.writeText(value)
+      return true
+    } catch (err) {
+      console.warn('[copyText] navigator.clipboard 不可用，回退到 execCommand', err)
+    }
+  }
+
+  try {
+    const textarea = document.createElement('textarea')
+    textarea.value = value
+    textarea.setAttribute('readonly', '')
+    textarea.style.position = 'fixed'
+    textarea.style.top = '0'
+    textarea.style.left = '0'
+    textarea.style.width = '1px'
+    textarea.style.height = '1px'
+    textarea.style.opacity = '0'
+    textarea.style.pointerEvents = 'none'
+    document.body.appendChild(textarea)
+
+    textarea.focus()
+    textarea.select()
+    textarea.setSelectionRange(0, value.length)
+
+    const ok = document.execCommand('copy')
+    document.body.removeChild(textarea)
+    return !!ok
+  } catch (err) {
+    console.error('[copyText] execCommand 也失败了', err)
+    return false
+  }
+}
diff --git a/admin-web/src/views/Batch.vue b/admin-web/src/views/Batch.vue
index 6bbe421..943da5f 100644
--- a/admin-web/src/views/Batch.vue
+++ b/admin-web/src/views/Batch.vue
@@ -136,7 +136,7 @@
 
 <script>
 import { request } from '@/utils/request'
-import { toast, confirm } from '@/utils/feedback'
+import { toast, confirm, copyText } from '@/utils/feedback'
 
 export default {
   name: 'BatchView',
@@ -176,7 +176,10 @@ export default {
         this.lineCount = lines.length
         toast(`已读取 ${lines.length} 条文本`, 'success')
       }
-      reader.onerror = () => toast('文件读取失败', 'error')
+      reader.onerror = (e) => {
+        console.error('[batch] 文件读取失败', e)
+        toast('文件读取失败', 'error')
+      }
       reader.readAsText(file, 'utf-8')
       e.target.value = ''
     },
@@ -267,6 +270,7 @@ export default {
         }, 0)
         toast('导出成功', 'success')
       } catch (err) {
+        console.error('[batch] 导出失败', err)
         toast('导出失败', 'error')
       } finally {
         this.exporting = false
@@ -278,10 +282,11 @@ export default {
         return
       }
       const csv = this.generateCSV()
-      try {
-        await navigator.clipboard.writeText(csv)
+      const ok = await copyText(csv)
+      if (ok) {
         toast('CSV 内容已复制到剪贴板', 'success')
-      } catch (err) {
+      } else {
+        console.error('[batch] 复制失败，CSV 内容打印到控制台供手动复制\n' + csv)
         toast('复制失败，请手动选择文本', 'error')
       }
     }
diff --git a/admin-web/src/views/Detect.vue b/admin-web/src/views/Detect.vue
index dc1de8e..666ccbe 100644
--- a/admin-web/src/views/Detect.vue
+++ b/admin-web/src/views/Detect.vue
@@ -168,6 +168,8 @@ export default {
           detect_spam_probability_text: this.formatPercent((result.detect || {}).spam_probability, 2)
         }
         toast(result.publish_allowed ? '发布成功' : '已拦截，可申诉', result.publish_allowed ? 'success' : 'error')
+      } catch (err) {
+        console.error('[detect] 发布失败', err)
       } finally {
         this.loading = false
       }
diff --git a/admin-web/src/views/Home.vue b/admin-web/src/views/Home.vue
index aa30fca..5d00317 100644
--- a/admin-web/src/views/Home.vue
+++ b/admin-web/src/views/Home.vue
@@ -118,11 +118,14 @@ export default {
     async bootstrap() {
       this.loading = true
       try {
-        const [, modelInfo] = await Promise.all([
-          refreshUser(),
-          request({ url: '/spam/model/info' })
-        ])
-        this.modelInfo = modelInfo
+        await refreshUser()
+        const modelInfo = await request({ url: '/spam/model/info' }).catch((err) => {
+          console.warn('[home] 模型信息加载失败', err)
+          return null
+        })
+        if (modelInfo) this.modelInfo = modelInfo
+      } catch (err) {
+        console.warn('[home] bootstrap 异常', err)
       } finally {
         this.loading = false
       }
diff --git a/admin-web/src/views/admin/Dashboard.vue b/admin-web/src/views/admin/Dashboard.vue
index 1602d22..89cefb1 100644
--- a/admin-web/src/views/admin/Dashboard.vue
+++ b/admin-web/src/views/admin/Dashboard.vue
@@ -147,7 +147,7 @@
 
 <script>
 import { request } from '@/utils/request'
-import { toast } from '@/utils/feedback'
+import { toast, copyText } from '@/utils/feedback'
 
 export default {
   name: 'AdminDashboard',
@@ -256,10 +256,12 @@ export default {
         `【近 7 日趋势】`,
         (report.spam_trend || []).slice(-7).map((t) => `${t.label}: 拦截${t.blocked}条，发布${t.published}条`).join('\n')
       ]
-      try {
-        await navigator.clipboard.writeText(lines.join('\n'))
+      const content = lines.join('\n')
+      const ok = await copyText(content)
+      if (ok) {
         toast('报告已复制到剪贴板', 'success')
-      } catch (err) {
+      } else {
+        console.error('[dashboard] 复制失败，报告内容打印到控制台供手动复制\n' + content)
         toast('复制失败，请手动选择', 'error')
       }
     }
diff --git a/admin-web/src/views/admin/Samples.vue b/admin-web/src/views/admin/Samples.vue
index e888100..1583529 100644
--- a/admin-web/src/views/admin/Samples.vue
+++ b/admin-web/src/views/admin/Samples.vue
@@ -161,6 +161,7 @@ export default {
       try {
         items = JSON.parse(this.importText)
       } catch (err) {
+        console.error('[samples] JSON 格式错误', err)
         toast('JSON 格式错误', 'error')
         return
       }
diff --git a/admin-web/src/views/admin/Users.vue b/admin-web/src/views/admin/Users.vue
index ef93957..3482259 100644
--- a/admin-web/src/views/admin/Users.vue
+++ b/admin-web/src/views/admin/Users.vue
@@ -179,6 +179,7 @@ export default {
       try {
         items = JSON.parse(this.importText)
       } catch (err) {
+        console.error('[users] JSON 格式错误', err)
         toast('JSON 格式错误', 'error')
         return
       }
diff --git a/admin-web/vue.config.js b/admin-web/vue.config.js
index 6638ae6..79950e8 100644
--- a/admin-web/vue.config.js
+++ b/admin-web/vue.config.js
@@ -7,6 +7,10 @@ module.exports = defineConfig({
     port: 8080,
     host: '0.0.0.0',
     historyApiFallback: true,
+    client: {
+      overlay: false,
+      logging: 'warn'
+    },
     proxy: {
       '/api': {
         target: 'http://127.0.0.1:5000',
diff --git a/backend/mysqlconfig.json b/backend/mysqlconfig.json
index 1399dad..65b2ed6 100644
--- a/backend/mysqlconfig.json
+++ b/backend/mysqlconfig.json
@@ -2,7 +2,7 @@
   "host": "127.0.0.1",
   "port": 3306,
   "user": "root",
-  "password": "123456",
+  "password": "rootroot",
   "database": "spam_nb_miniapp",
   "charset": "utf8mb4",
   "admin_init": {