Tighten search-box types, expand test prefix, drop stale CSS comment

- chooseFromApi is now generic over the response shape; each caller
  declares a typed *SearchResponse, removing four `any` annotations
- e2e test prefix: rc- → repo-collab- for legibility in the test DB
- web_src/css/modules/search.css: drop the stale leading comment

Co-Authored-By: Claude (Opus 4.7) <noreply@anthropic.com>

web_src/js/features/comp/SearchRepoBox.ts

@@ -2,6 +2,8 @@ import {chooseFromApi} from '../../modules/search.ts';
 
 const {appSubUrl} = window.config;
 
+type RepoSearchResponse = {data: Array<{repository: {full_name: string}}>};
+
 export async function initCompSearchRepoBox(el: HTMLElement) {
   const uid = el.getAttribute('data-uid');
   const exclusive = el.getAttribute('data-exclusive');
@@ -10,7 +12,7 @@ export async function initCompSearchRepoBox(el: HTMLElement) {
   const input = el.querySelector<HTMLInputElement>('input.prompt')!;
 
   while (el.isConnected) {
-    const pick = await chooseFromApi(el, url, (response: any) => response.data.map((item: any) => ({
+    const pick = await chooseFromApi<RepoSearchResponse>(el, url, (response) => response.data.map((item) => ({
       title: item.repository.full_name.split('/')[1],
       description: item.repository.full_name,
     })));