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/components/workspace/settings/appearance-settings-page.tsx

@@ -54,6 +54,7 @@ import type {
   CompactShortcutRouteParam,
 } from "@/core/system-settings/api";
 import { cn } from "@/lib/utils";
+import { createClientId } from "@/lib/client-id";
 import {
   APP_THEME_COLORS,
   LOGIN_SOURCE_OPTIONS,
@@ -77,10 +78,7 @@ const languageOptions: { value: Locale; label: string }[] = [
 const DEFAULT_SHORTCUT_THEME_MAP = "red=red;green=green;blue=blue;dark-blue=dark-blue";
 
 function makeShortcutId() {
-  if (typeof crypto !== "undefined" && "randomUUID" in crypto) {
-    return crypto.randomUUID();
-  }
-  return `shortcut-${Date.now()}-${Math.random().toString(16).slice(2)}`;
+  return createClientId("shortcut");
 }
 
 function newShortcutParam(): CompactShortcutRouteParam {

frontend-web/src/components/workspace/settings/custom-theme-library-settings.tsx

@@ -43,6 +43,7 @@ import {
   customThemeTextContrast,
   type CustomThemeAdvancedKey,
 } from "@/core/theme/custom-theme";
+import { createClientId } from "@/lib/client-id";
 import { cn } from "@/lib/utils";
 
 const MAX_CUSTOM_THEMES = 12;
@@ -127,10 +128,7 @@ const ADVANCED_COLOR_FIELDS: Array<{
 ];
 
 function makeThemeId(): `custom-theme-${string}` {
-  const suffix =
-    typeof crypto !== "undefined" && "randomUUID" in crypto
-      ? crypto.randomUUID().replace(/[^a-z0-9-]/gi, "").toLowerCase()
-      : `${Date.now().toString(36)}${Math.random().toString(36).slice(2, 10)}`;
+  const suffix = createClientId().replace(/[^a-z0-9-]/gi, "").toLowerCase();
   return `custom-theme-${suffix}`;
 }