chore(frontend): update exports and fix lint issues

- Update projects/index.ts to export new list components
- Update prototypes page to reflect #53 implementation at /
- Fix unused variable in ErrorBoundary.test.tsx

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

frontend/src/app/[locale]/prototypes/page.tsx

@@ -22,8 +22,8 @@ const implementedPrototypes = [
     title: 'Main Dashboard',
     description: 'Landing page with projects list, activity feed, and quick stats overview',
     icon: Home,
-    issue: '#47',
+    issue: '#53',
-    implementedAt: '/projects',
+    implementedAt: '/',
   },
   {
     id: 'project-dashboard',

frontend/src/components/projects/index.ts

@@ -6,10 +6,42 @@
  * @module components/projects
  */
 
+// Dashboard Components
+export { ProjectDashboard } from './ProjectDashboard';
+export { ProjectHeader } from './ProjectHeader';
+export { AgentPanel } from './AgentPanel';
+export { SprintProgress } from './SprintProgress';
+export { BurndownChart } from './BurndownChart';
+export { IssueSummary } from './IssueSummary';
+export { RecentActivity } from './RecentActivity';
+export { ProjectStatusBadge, AutonomyBadge } from './StatusBadge';
+export { ProgressBar } from './ProgressBar';
+
+// List Components
+export { ProjectCard, ProjectCardSkeleton } from './ProjectCard';
+export { ProjectFilters } from './ProjectFilters';
+export { ProjectsGrid } from './ProjectsGrid';
+
 // Wizard Components
 export { ProjectWizard, StepIndicator, SelectableCard } from './wizard';
 
-// Re-export wizard types
+// Re-export types
+export type {
+  Project,
+  ProjectStatus,
+  AutonomyLevel as ProjectAutonomyLevel,
+  AgentInstance,
+  AgentStatus,
+  Sprint,
+  SprintStatus,
+  Issue,
+  IssueStatus,
+  IssuePriority,
+  IssueCountSummary,
+  ActivityItem,
+  BurndownDataPoint,
+} from './types';
+
 export type {
   WizardState,
   WizardStep,
@@ -17,3 +49,7 @@ export type {
   ClientMode,
   AutonomyLevel,
 } from './wizard';
+
+export type { ProjectCardProps } from './ProjectCard';
+export type { ProjectFiltersProps, ViewMode, SortBy, SortOrder, Complexity } from './ProjectFilters';
+export type { ProjectsGridProps } from './ProjectsGrid';

frontend/tests/components/common/ErrorBoundary.test.tsx

@@ -299,9 +299,7 @@ describe('ErrorBoundary', () => {
       expect(icons.length).toBeGreaterThan(0);
     });
 
-    it('reset button is keyboard accessible', async () => {
+    it('reset button is keyboard accessible', () => {
-      const user = userEvent.setup();
-
       render(
         <ErrorBoundary>
           <ThrowingComponent shouldThrow={false} />