Add changeset & add to app-next

Signed-off-by: Philipp Hugenroth <philipph@spotify.com>

.changeset/modern-owls-mate.md

@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-techdocs': minor
+---
+
+Added experimental support for declarative integration.

packages/app-next/src/App.tsx

@@ -25,6 +25,7 @@ import {
   createPageExtension,
 } from '@backstage/frontend-plugin-api';
 import { entityRouteRef } from '@backstage/plugin-catalog-react';
+import techdocsPlugin from '@backstage/plugin-techdocs/alpha';
 
 /*
 
@@ -67,6 +68,7 @@ const app = createApp({
     graphiqlPlugin,
     pagesPlugin,
     techRadarPlugin,
+    techdocsPlugin,
     userSettingsPlugin,
     createExtensionOverrides({
       extensions: [entityPageExtension],

plugins/techdocs/src/alpha.tsx

@@ -25,6 +25,7 @@ import { createSearchResultListItemExtension } from '@backstage/plugin-search-re
 import {
   configApiRef,
   createApiFactory,
+  createRouteRef,
   discoveryApiRef,
   fetchApiRef,
   identityApiRef,
@@ -34,7 +35,15 @@ import {
   techdocsStorageApiRef,
 } from '@backstage/plugin-techdocs-react';
 import { TechDocsClient, TechDocsStorageClient } from './client';
-import { rootDocsRouteRef, rootRouteRef } from './routes';
+
+const rootRouteRef = createRouteRef({
+  id: 'plugin.techdocs.indexPage',
+});
+
+const rootDocsRouteRef = createRouteRef({
+  id: 'plugin.techdocs.readerPage',
+  params: ['namespace', 'kind', 'name'],
+});
 
 /** @alpha */
 export const TechDocsSearchResultListItemExtension =