fix: handle invalid search query validation errors

frontend/__tests__/a11y/components/RepositoryCard.a11y.test.tsx

@@ -5,6 +5,7 @@ import { RepositoryCardProps } from 'types/project'
 import RepositoryCard from 'components/RepositoryCard'
 
 const createMockRepository = (index: number): RepositoryCardProps => ({
+  updatedAt: '2025-01-01T00:00:00.000Z',
   contributorsCount: 10 + index,
   forksCount: 5 + index,
   key: `repo-${index}`,

frontend/__tests__/unit/components/RepositoryCard.test.tsx

@@ -48,6 +48,7 @@ describe('RepositoryCard', () => {
   })
 
   const createMockRepository = (index: number): RepositoryCardProps => ({
+    updatedAt: '2025-01-01T00:00:00.000Z',
     contributorsCount: 10 + index,
     forksCount: 5 + index,
     key: `repo-${index}`,
@@ -72,6 +73,12 @@ describe('RepositoryCard', () => {
     url: `https://github.com/org-${index}/repo-${index}`,
   })
 
+  it('displays repository updated date when available', () => {
+    const repositories = [createMockRepository(0)]
+    render(<RepositoryCard repositories={repositories} />)
+    expect(screen.getByText(/Updated/i)).toBeInTheDocument()
+  })
+
   it('renders without crashing with empty repositories', () => {
     render(<RepositoryCard repositories={[]} />)
     expect(screen.queryByRole('button', { name: /Show/ })).not.toBeInTheDocument()

frontend/src/components/RepositoryCard.tsx

@@ -86,6 +86,12 @@ const RepositoryItem = ({ details }: { details: RepositoryCardProps }) => {
           unit="Issue"
           value={details.openIssuesCount}
         />
+
+        {details.updatedAt && (
+          <div className="text-xs text-gray-500 dark:text-gray-400">
+            Updated {new Date(details.updatedAt).toLocaleDateString()}
+          </div>
+        )}
       </div>
     </div>
   )

frontend/src/server/fetchAlgoliaData.ts

@@ -35,6 +35,22 @@ export const fetchAlgoliaData = async <T>(
       }),
     })
 
+    if (response.status === 400) {
+      const errorData = await response.json()
+
+      if (
+        typeof errorData?.error === 'string' &&
+        errorData.error.includes('Invalid query value')
+      ) {
+        return {
+          hits: [],
+          totalPages: 0,
+        }
+      }
+
+      throw new AppError(400, 'Search service error')
+    }
+
     if (!response.ok) {
       throw new AppError(response.status, 'Search service error')
     }

frontend/src/server/queries/organizationQueries.ts

@@ -76,6 +76,7 @@ export const GET_ORGANIZATION_DATA = gql`
       url
     }
     repositories(organization: $login, limit: 12) {
+      updatedAt
       id
       contributorsCount
       forksCount

frontend/src/types/project.ts

@@ -63,6 +63,7 @@ export type RepositoryCardListProps = {
 }
 
 export type RepositoryCardProps = {
+  updatedAt?: string
   contributorsCount: number
   forksCount: number
   isArchived?: boolean