Merge branch 'ji' into master

合并 ji 的功能：开放问答接口（/api/open/chat[/stream] 回传生成文件 + 临时不留存）、
技能地址管理、智能体详情「最近对话」等。
冲突 frontend StrategyRoutes.tsx 已解决：同时保留 admin/roundtable-diagnostics(master)
与 admin/skill-addresses(ji) 两个管理员路由。

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

frontend-web/src/pages/StrategyRoutes.tsx

@@ -40,6 +40,7 @@ import LightAppListPage from "./LightAppListPage";
 import LightAppManagementPage from "./LightAppManagementPage";
 import MenuManagementPage from "./MenuManagementPage";
 import SensitiveWordsPage from "./SensitiveWordsPage";
+import SkillAddressesPage from "./SkillAddressesPage";
 import TaskButtonsPage from "./TaskButtonsPage";
 import RoundtableDiagnosticsPage from "./RoundtableDiagnosticsPage";
 import LightAppNewNotePage from "./LightAppNewNotePage";
@@ -404,6 +405,16 @@ export default function StrategyRoutes() {
                 )
               }
             />
+            <Route
+              path="admin/skill-addresses"
+              element={
+                getStoredAuth()?.system_role === "admin" ? (
+                  <SkillAddressesPage />
+                ) : (
+                  <Navigate to="/page/workspace/chats/new" replace />
+                )
+              }
+            />
             <Route
               path="admin/scheduled-tasks"
               element={