Initialize Eigen HRIS project

- Add .gitignore, .yarnrc.yml, and initial project metadata (AGENTS.md, DESIGN.md, package.json, Yarn lock, Tailwind, PostCSS, Next.js config, TypeScript config)
- Add CSV data files (users, employees, contracts, attendances)
- Implement API routes for auth, employees, contracts, attendances, analytics, and file upload
- Add core pages (dashboard, employees, attendances, profile, login, main layout)
- Add UI components (avatar, avatar picker, badge, button, card, input, modal, select, sidebar, navigation shell, top header)
- Add attendance features (table, clock widget, unified permit modal with file upload, upload API)
- Add employee management (contract timeline with file upload, employee form modal, employee table)
- Add dashboard widgets (leaderboard, early bird, latecomer, night owl, day status feed, date filter bar)
- Add utilities (avatar generator, analytics calculations, CSV DB layer, auth context)
- Add type definitions for auth, employee, contract, attendance, dashboard

All changes are synchronized with documentation (AGENTS.md, DESIGN.md, walkthrough).

src/app/api/auth/me/route.ts

@@ -0,0 +1,31 @@
+import { NextResponse } from 'next/server';
+import { cookies } from 'next/headers';
+import { getUserById, getEmployeeById } from '@/lib/csv-db';
+
+export async function GET() {
+  try {
+    const cookieStore = cookies();
+    const sessionCookie = cookieStore.get('eigen_session');
+
+    if (!sessionCookie?.value) {
+      // Default demo superadmin session if no cookie yet
+      const adminUser = await getUserById('USR-001');
+      const adminEmployee = adminUser?.employee_id ? await getEmployeeById(adminUser.employee_id) : null;
+      return NextResponse.json({
+        authenticated: true,
+        session: {
+          user: adminUser,
+          employee: adminEmployee,
+        },
+      });
+    }
+
+    const sessionData = JSON.parse(sessionCookie.value);
+    return NextResponse.json({
+      authenticated: true,
+      session: sessionData,
+    });
+  } catch (error: any) {
+    return NextResponse.json({ authenticated: false, session: null }, { status: 200 });
+  }
+}