feat(frontend): implement main dashboard page (#48)

Implement the main dashboard / projects list page for Syndarix as the landing
page after login. The implementation includes:

Dashboard Components:
- QuickStats: Overview cards showing active projects, agents, issues, approvals
- ProjectsSection: Grid/list view with filtering and sorting controls
- ProjectCardGrid: Rich project cards for grid view
- ProjectRowList: Compact rows for list view
- ActivityFeed: Real-time activity sidebar with connection status
- PerformanceCard: Performance metrics display
- EmptyState: Call-to-action for new users
- ProjectStatusBadge: Status indicator with icons
- ComplexityIndicator: Visual complexity dots
- ProgressBar: Accessible progress bar component

Features:
- Projects grid/list view with view mode toggle
- Filter by status (all, active, paused, completed, archived)
- Sort by recent, name, progress, or issues
- Quick stats overview with counts
- Real-time activity feed sidebar with live/reconnecting status
- Performance metrics card
- Create project button linking to wizard
- Responsive layout for mobile/desktop
- Loading skeleton states
- Empty state for new users

API Integration:
- useProjects hook for fetching projects (mock data until backend ready)
- useDashboardStats hook for statistics
- TanStack Query for caching and data fetching

Testing:
- 37 unit tests covering all dashboard components
- E2E test suite for dashboard functionality
- Accessibility tests (keyboard nav, aria attributes, heading hierarchy)

Technical:
- TypeScript strict mode compliance
- ESLint passing
- WCAG AA accessibility compliance
- Mobile-first responsive design
- Dark mode support via semantic tokens
- Follows design system guidelines

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

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

frontend/src/app/[locale]/(authenticated)/projects/new/page.tsx

@@ -0,0 +1,30 @@
+/**
+ * New Project Page
+ *
+ * Multi-step wizard for creating new Syndarix projects.
+ */
+
+import type { Metadata } from 'next';
+
+import { ProjectWizard } from '@/components/projects';
+
+export const metadata: Metadata = {
+  title: 'New Project',
+  description: 'Create a new Syndarix project with AI-powered agents',
+};
+
+interface NewProjectPageProps {
+  params: Promise<{ locale: string }>;
+}
+
+export default async function NewProjectPage({ params }: NewProjectPageProps) {
+  const { locale } = await params;
+
+  return (
+    <div className="min-h-screen bg-background">
+      <div className="container mx-auto px-4 py-8">
+        <ProjectWizard locale={locale} />
+      </div>
+    </div>
+  );
+}