feat: 拆分邮件通知选项，根据会员权益显示

- 翻译完成邮件通知（所有用户）
- 鮮件带附件发送（VIP专属，free用户显示需VIP）
- 会员到期提醒（仅VIP用户显示）
- 添加 notify_with_attachment 字段
- 更新各等级权益：email_notify/email_attachment

app.py

@@ -223,6 +223,8 @@ def pricing():
         'priority_queue': '优先处理队列',
         'custom_instruction': '自定义翻译要求',
         'api_access': 'API接口调用',
+        'email_notify': '邮件通知',
+        'email_attachment': '邮件附件发送',
     }
     
     # 从数据库读取动态配置的会员套餐
@@ -289,10 +291,15 @@ def profile():
     daily_remaining = limits['daily_translations'] - user.daily_count if limits['daily_translations'] > 0 else '无限'
     max_pages = limits['max_pages'] if limits['max_pages'] > 0 else '无限'
     
+    # 检查是否有邮件附件权限
+    user_features = limits.get('features', [])
+    has_email_attachment = 'email_attachment' in user_features or user_features == ['all']
+    
     return render_template('profile.html', 
         user=user,
         daily_remaining=daily_remaining,
-        max_pages=max_pages
+        max_pages=max_pages,
+        has_email_attachment=has_email_attachment
     )
 
 
@@ -876,6 +883,14 @@ def update_settings():
         user.notify_on_complete = data.get('notify_on_complete', True)
     if 'notify_on_expire' in data:
         user.notify_on_expire = data.get('notify_on_expire', True)
+    if 'notify_with_attachment' in data:
+        # 检查是否有附件权限
+        limits = USER_LIMITS.get(user.user_type, USER_LIMITS['free'])
+        user_features = limits.get('features', [])
+        if 'email_attachment' in user_features or user_features == ['all']:
+            user.notify_with_attachment = data.get('notify_with_attachment', False)
+        else:
+            return jsonify({'error': '邮件附件功能需VIP会员', 'feature': 'email_attachment'}), 403
     if 'email_notify' in data:
         user.email_notify = data.get('email_notify', True)
     

config.py

@@ -39,19 +39,19 @@ USER_LIMITS = {
         "daily_translations": 10,
         "max_pages": 50,
         "max_file_size": 30 * 1024 * 1024,  # 30MB
-        "features": ["basic_translate", "retranslate", "export_pdf", "history"],
+        "features": ["basic_translate", "retranslate", "export_pdf", "history", "email_notify"],
     },
     "vip_basic": {  # 基础会员 (月付 ¥29)
         "daily_translations": 50,
         "max_pages": 100,
         "max_file_size": 50 * 1024 * 1024,
-        "features": ["basic_translate", "compare_view", "retranslate", "history", "priority_queue", "export_pdf"],
+        "features": ["basic_translate", "compare_view", "retranslate", "history", "priority_queue", "export_pdf", "email_notify", "email_attachment"],
     },
     "vip_pro": {    # 专业会员 (月付 ¥99)
         "daily_translations": 200,
         "max_pages": 500,
         "max_file_size": 100 * 1024 * 1024,
-        "features": ["basic_translate", "compare_view", "retranslate", "history", "priority_queue", "export_pdf", "batch_translate", "custom_terms"],
+        "features": ["basic_translate", "compare_view", "retranslate", "history", "priority_queue", "export_pdf", "batch_translate", "custom_terms", "email_notify", "email_attachment"],
     },
     "vip_enterprise": {  # 企业会员 (年付 ¥999)
         "daily_translations": -1,  # 无限制

models.py

@@ -54,6 +54,7 @@ class User(db.Model):
     # 邮件通知设置
     email_notify = db.Column(db.Boolean, default=True)  # 邮件通知开关
     notify_on_complete = db.Column(db.Boolean, default=True)  # 翻译完成通知
+    notify_with_attachment = db.Column(db.Boolean, default=False)  # 邮件带附件（VIP功能）
     notify_on_expire = db.Column(db.Boolean, default=True)   # 会员到期提醒
     
     # 关系
@@ -132,6 +133,7 @@ class User(db.Model):
             'invite_rewards': self.invite_rewards,
             'email_notify': self.email_notify,
             'notify_on_complete': self.notify_on_complete,
+            'notify_with_attachment': self.notify_with_attachment,
             'notify_on_expire': self.notify_on_expire,
             'daily_count': self.daily_count,
             'total_count': self.total_count,

templates/profile.html

@@ -198,18 +198,40 @@
                                 
                                 <hr class="my-2">
                                 
+                                <!-- 翻译完成邮件通知（所有用户都有） -->
                                 <div class="form-check mb-2">
                                     <input class="form-check-input" type="checkbox" id="notifyComplete" 
                                            {% if user.notify_on_complete %}checked{% endif %}
                                            onchange="updateNotifySettings()">
-                                    <label class="form-check-label">翻译完成通知（含附件）</label>
+                                    <label class="form-check-label">翻译完成邮件通知</label>
                                 </div>
+                                
+                                <!-- 邮件带附件（VIP功能） -->
+                                {% if has_email_attachment %}
+                                <div class="form-check mb-2">
+                                    <input class="form-check-input" type="checkbox" id="notifyAttachment" 
+                                           {% if user.notify_with_attachment %}checked{% endif %}
+                                           onchange="updateNotifySettings()">
+                                    <label class="form-check-label">邮件带附件发送 <span class="badge bg-success">VIP</span></label>
+                                </div>
+                                {% else %}
+                                <div class="form-check mb-2">
+                                    <input class="form-check-input" type="checkbox" disabled>
+                                    <label class="form-check-label text-muted">邮件带附件发送 <span class="badge bg-secondary">需VIP</span></label>
+                                    <a href="/pricing" class="small ms-2">升级会员</a>
+                                </div>
+                                {% endif %}
+                                
+                                <!-- 会员到期提醒 -->
+                                {% if user.user_type.startswith('vip') %}
                                 <div class="form-check mb-2">
                                     <input class="form-check-input" type="checkbox" id="notifyExpire"
                                            {% if user.notify_on_expire %}checked{% endif %}
                                            onchange="updateNotifySettings()">
                                     <label class="form-check-label">会员到期提醒</label>
                                 </div>
+                                {% endif %}
+                                
                                 <small class="text-muted">通知将发送至上述邮箱</small>
                             </div>
                         </div>
@@ -524,21 +546,27 @@
         // 更新通知设置
         function updateNotifySettings() {
             const notifyComplete = document.getElementById('notifyComplete').checked;
-            const notifyExpire = document.getElementById('notifyExpire').checked;
+            const notifyExpire = document.getElementById('notifyExpire')?.checked || false;
+            const notifyAttachment = document.getElementById('notifyAttachment')?.checked || false;
             
             fetch('/api/profile/settings', {
                 method: 'POST',
                 headers: { 'Content-Type': 'application/json' },
                 body: JSON.stringify({
                     notify_on_complete: notifyComplete,
-                    notify_on_expire: notifyExpire
+                    notify_on_expire: notifyExpire,
+                    notify_with_attachment: notifyAttachment
                 })
             })
             .then(r => r.json())
             .then(data => {
                 if (data.success) {
-                    // 不刷新页面，只显示提示
                     console.log('设置已更新');
+                } else if (data.feature === 'email_attachment') {
+                    alert('邮件附件功能需要VIP会员');
+                    location.href = '/pricing';
+                } else {
+                    alert('更新失败：' + data.error);
                 }
             });
         }