feat: 新增技能地址管理与开放问答接口，完善任务工作区

- 新增「技能地址管理」页面与 /api/skill-addresses 路由（扫描/预览/批量替换技能内地址）
- 完善 /api/open/chat 开放问答接口与模型工厂、网关配置
- 调整任务工作区、侧边栏与路由
- 将本地 0622/ 临时目录与 __pycache__/ 加入忽略，不提交

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 LightAppNewNotePage from "./LightAppNewNotePage";
 import LightAppNoteListPage from "./LightAppNoteListPage";
@@ -393,6 +394,16 @@ 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={