feat(pool,trace): 账号封禁原因细分与请求追踪 attempted_only 过滤

- 将账号封禁原因从笼统的"账号异常"细分为封禁/停用/需要验证三类，
  前后端关键词组同步拆分，号池管理页面展示对应分类标签
- trace API 新增 attempted_only 参数，支持仅返回实际尝试过的候选，
  前端时间线组件默认启用过滤，排除 available/unused/skipped 记录

frontend/src/api/requestTrace.ts

@@ -55,8 +55,14 @@ export const requestTraceApi = {
   /**
    * 获取特定请求的完整追踪信息
    */
-  async getRequestTrace(requestId: string): Promise<RequestTrace> {
-    const response = await apiClient.get<RequestTrace>(`/api/admin/monitoring/trace/${requestId}`)
+  async getRequestTrace(
+    requestId: string,
+    options: { attemptedOnly?: boolean } = {},
+  ): Promise<RequestTrace> {
+    const attemptedOnly = options.attemptedOnly ?? true
+    const response = await apiClient.get<RequestTrace>(`/api/admin/monitoring/trace/${requestId}`, {
+      params: { attempted_only: attemptedOnly },
+    })
     return response.data
   },