feat: add rate limit recovery webhook notifications

添加限流恢复的 webhook 通知功能，当账户从限流状态自动恢复时发送通知。

主要改进:

1. **新增通知类型** (webhookConfigService.js)
   - 添加 `rateLimitRecovery` 通知类型
   - 在配置获取和保存时自动合并默认通知类型
   - 确保新增的通知类型有默认值

2. **增强限流清理服务** (rateLimitCleanupService.js)
   - 改进自动停止账户的检测逻辑
   - 在 `finally` 块中确保 `clearedAccounts` 列表被重置，避免重复通知
   - 对自动停止的账户显式调用 `removeAccountRateLimit`
   - 为 Claude 和 Claude Console 账户添加 `autoStopped` 和 `needsAutoStopRecovery` 检测

3. **改进 Claude Console 限流移除** (claudeConsoleAccountService.js)
   - 检测并恢复因自动停止而禁用调度的账户
   - 清理过期的 `rateLimitAutoStopped` 标志
   - 增加详细的日志记录

4. **前端 UI 支持** (SettingsView.vue)
   - 在 Webhook 设置中添加"限流恢复"通知类型选项
   - 更新默认通知类型配置

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/services/claudeConsoleAccountService.js

@@ -490,20 +490,29 @@ class ClaudeConsoleAccountService {
             errorMessage: ''
           }
 
+          const hadAutoStop = accountData.rateLimitAutoStopped === 'true'
+
           // 只恢复因限流而自动停止的账户
-          if (accountData.rateLimitAutoStopped === 'true' && accountData.schedulable === 'false') {
+          if (hadAutoStop && accountData.schedulable === 'false') {
             updateData.schedulable = 'true' // 恢复调度
-            // 删除限流自动停止标记
-            await client.hdel(accountKey, 'rateLimitAutoStopped')
             logger.info(
               `✅ Auto-resuming scheduling for Claude Console account ${accountId} after rate limit cleared`
             )
           }
 
+          if (hadAutoStop) {
+            await client.hdel(accountKey, 'rateLimitAutoStopped')
+          }
+
           await client.hset(accountKey, updateData)
           logger.success(`✅ Rate limit removed and account re-enabled: ${accountId}`)
         }
       } else {
+        if (await client.hdel(accountKey, 'rateLimitAutoStopped')) {
+          logger.info(
+            `ℹ️ Removed stale auto-stop flag for Claude Console account ${accountId} during rate limit recovery`
+          )
+        }
         logger.success(`✅ Rate limit removed for Claude Console account: ${accountId}`)
       }