feat(pages): Complete p05-page-migrations with all pages and navigation tests

- Create Team Members page with DataTable, search, and filters
- Create Projects page with status badges and workflow
- Create placeholder pages for Allocations, Actuals, Reports, Settings, Master Data
- Fix navigation config: change /team to /team-members
- Remove old Navigation.svelte component
- Add comprehensive navigation link E2E tests (16 tests)
- Add Team Members and Projects page E2E tests

All 16 navigation link tests passing:
- Dashboard, Team Members, Projects, Allocations, Actuals
- All 5 Reports pages (Forecast, Utilization, Costs, Variance, Allocation)
- Admin pages (Settings, Master Data)
- Authentication preservation across pages

Refs: openspec/changes/p05-page-migrations
Closes: p05-page-migrations

frontend/src/lib/config/navigation.ts

@@ -5,7 +5,7 @@ export const navigationSections: NavSection[] = [
     title: 'PLANNING',
     items: [
       { label: 'Dashboard', href: '/dashboard', icon: 'LayoutDashboard' },
-      { label: 'Team', href: '/team', icon: 'Users' },
+      { label: 'Team Members', href: '/team-members', icon: 'Users' },
       { label: 'Projects', href: '/projects', icon: 'Folder' },
       { label: 'Allocations', href: '/allocations', icon: 'Calendar' },
       { label: 'Actuals', href: '/actuals', icon: 'CheckCircle' }