feat(web): 分类展示公开 API 文档

将通用开放接口与兼容接口分层展示，补充完整接口目录、分类路由、搜索能力和接入约定。\n\n验证：pnpm nx run web:test；pnpm nx run web:build

apps/web/src/routing.ts

@@ -12,7 +12,7 @@ export interface AppRouteState {
 export const defaultRouteState: AppRouteState = {
   activePage: 'home',
   adminSection: 'overview',
-  apiDocSection: 'chat',
+  apiDocSection: 'openApiOverview',
   playgroundMode: 'chat',
   workspaceSection: 'overview',
   workspaceTaskQuery: defaultWorkspaceTaskQuery(),
@@ -43,6 +43,12 @@ const adminPaths: Record<AdminSection, string> = {
 };
 
 const docsPaths: Record<ApiDocSection, string> = {
+  openApiOverview: '/docs/open-api',
+  compatApiOverview: '/docs/compatible-api',
+  compatGemini: '/docs/compatible-api/gemini',
+  compatKling: '/docs/compatible-api/kling',
+  compatVolces: '/docs/compatible-api/volces',
+  compatServerMain: '/docs/compatible-api/server-main',
   guideBaseUrl: '/docs/auth',
   guideWebhook: '/docs/webhook',
   guideErrors: '/docs/errors',
@@ -129,7 +135,7 @@ export function pathForAdminSection(section: AdminSection) {
 }
 
 export function pathForApiDocSection(section: ApiDocSection) {
-  return docsPaths[section] ?? docsPaths.chat;
+  return docsPaths[section] ?? docsPaths.openApiOverview;
 }
 
 export function pathForPlaygroundMode(mode: PlaygroundMode) {
@@ -148,7 +154,7 @@ function parseAdminSection(path: string): AdminSection {
 }
 
 function parseDocSection(path: string): ApiDocSection {
-  if (path === '/docs') return 'chat';
+  if (path === '/docs') return 'openApiOverview';
   if (path === '/docs/playground') return 'guideTesting';
   if (path === '/docs/api/chat') return 'chat';
   if (path === '/docs/api/responses') return 'responses';
@@ -157,7 +163,7 @@ function parseDocSection(path: string): ApiDocSection {
   if (path === '/docs/api/media') return 'imageGeneration';
   if (path === '/docs/api/videos') return 'videoGeneration';
   if (path === '/docs/api/tasks') return 'taskRetrieve';
-  return docsSections[path] ?? 'chat';
+  return docsSections[path] ?? 'openApiOverview';
 }
 
 function parsePlaygroundMode(path: string): PlaygroundMode {