增强 Deep Research 可靠性，并接入 8BF 任务卡片与会商上下文。

修复 MySQL 读写分离下的持久化与 SSE 重连问题，报告完成前先落库；8BF 嵌入页支持 taskId 任务卡与独立意图 metadata；前端统一 createClientId 并更新 runtime 配置。

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend-web/src/pages/PluginManagementPage.tsx

@@ -8,6 +8,7 @@ import { Button } from "@/components/ui/button";
 import { Input } from "@/components/ui/input";
 import { Switch } from "@/components/ui/switch";
 import { useAgentSelector } from "@/core/agents";
+import { createClientId } from "@/lib/client-id";
 import {
   type DomainAgentMapping,
   normalizeDomainInput,
@@ -20,10 +21,7 @@ import {
 
 function makeRow(): DomainAgentMapping {
   return {
-    id:
-      typeof crypto !== "undefined" && typeof crypto.randomUUID === "function"
-        ? crypto.randomUUID()
-        : `${Date.now()}-${Math.random().toString(36).slice(2, 10)}`,
+    id: createClientId(),
     domain: "",
     agentId: "",
     enabled: true,