fix: prevent auto-selecting first repo in GitHub search results

Remove the useEffect that automatically selected repoList[0] whenever
search results loaded. This caused the UI to behave as if the first
repository was selected even when the user had clicked a different one.

Add regression test ensuring:
- results load without auto-selecting the first repo
- clicking a repo commits exactly that repo's URL and name

src/components/StorageService/SearchGithubRepo.tsx

@@ -162,13 +162,6 @@ function SearchGithubRepoResultList({
     [data, repositoryCount],
   );
 
-  // auto select first one after first search
-  useEffect(() => {
-    if (githubWikiUrl.length === 0 && repoList.length > 0) {
-      onSelectRepo(repoList[0].url, repoList[0].name);
-    }
-  }, [repoList, githubWikiUrl, onSelectRepo]);
-
   const [isCreatingRepo, isCreatingRepoSetter] = useState(false);
   const githubUserID = data?.repositoryOwner.id;
   const wikiUrlToCreate = `https://github.com/${githubUsername ?? '???'}/${githubRepoSearchString}`;

src/components/StorageService/__tests__/SearchGithubRepo.test.tsx

@@ -0,0 +1,98 @@
+import { render, screen, waitFor } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+import { BehaviorSubject } from 'rxjs';
+import { beforeEach, describe, expect, it, vi } from 'vitest';
+
+import type { IUserInfos } from '@services/auth/interface';
+import SearchGithubRepo from '../SearchGithubRepo';
+
+const mockUseQuery = vi.fn();
+const mockUseMutation = vi.fn();
+
+vi.mock('graphql-hooks', () => ({
+  ClientContext: {
+    Provider: ({ children }: { children: React.ReactNode }) => children,
+  },
+  GraphQLClient: class {
+    setHeader() {}
+  },
+  useMutation: (...args: unknown[]) => mockUseMutation(...args),
+  useQuery: (...args: unknown[]) => mockUseQuery(...args),
+}));
+
+describe('SearchGithubRepo', () => {
+  let userInfoSubject: BehaviorSubject<IUserInfos | undefined>;
+
+  beforeEach(() => {
+    vi.clearAllMocks();
+
+    userInfoSubject = new BehaviorSubject<IUserInfos | undefined>({
+      userName: 'Test User',
+      'github-token': 'test-token',
+      'github-userName': 'test-user',
+    });
+
+    Object.defineProperty(window.observables.auth, 'userInfo$', {
+      value: userInfoSubject.asObservable(),
+      writable: true,
+      configurable: true,
+    });
+
+    mockUseMutation.mockReturnValue([vi.fn()]);
+    mockUseQuery.mockReturnValue({
+      loading: false,
+      error: undefined,
+      refetch: vi.fn(),
+      data: {
+        repositoryOwner: { id: 'owner-1' },
+        search: {
+          repositoryCount: 2,
+          edges: [
+            { node: { name: 'first-repo', url: 'https://github.com/test-user/first-repo' } },
+            { node: { name: 'clicked-repo', url: 'https://github.com/test-user/clicked-repo' } },
+          ],
+        },
+      },
+    });
+  });
+
+  it('does not auto-select the first repository when results load', async () => {
+    const githubWikiUrlSetter = vi.fn();
+
+    render(
+      <SearchGithubRepo
+        githubWikiUrl=''
+        githubWikiUrlSetter={githubWikiUrlSetter}
+        isCreateMainWorkspace
+      />,
+    );
+
+    await waitFor(() => {
+      expect(screen.getByText('first-repo')).toBeInTheDocument();
+      expect(screen.getByText('clicked-repo')).toBeInTheDocument();
+    });
+
+    expect(githubWikiUrlSetter).not.toHaveBeenCalled();
+  });
+
+  it('selects exactly the repository the user clicked', async () => {
+    const user = userEvent.setup();
+    const githubWikiUrlSetter = vi.fn();
+    const wikiFolderNameSetter = vi.fn();
+
+    render(
+      <SearchGithubRepo
+        githubWikiUrl=''
+        githubWikiUrlSetter={githubWikiUrlSetter}
+        wikiFolderNameSetter={wikiFolderNameSetter}
+        isCreateMainWorkspace
+      />,
+    );
+
+    const clickedRepo = await screen.findByText('clicked-repo');
+    await user.click(clickedRepo);
+
+    expect(githubWikiUrlSetter).toHaveBeenCalledWith('https://github.com/test-user/clicked-repo');
+    expect(wikiFolderNameSetter).toHaveBeenCalledWith('clicked-repo');
+  });
+});