[CLAUDE] Phase1: foundation - BE Clean Arch + Identity + JWT + 2 FE React + login E2E

Backend (.NET 10):
- Domain: BaseEntity/AuditableEntity, ContractType/Phase/ApprovalDecision enums, User/Role (Identity<Guid>), AppRoles (12 const)
- Application: IApplicationDbContext/ICurrentUser/IDateTime/IJwtTokenService, custom exceptions, ValidationBehavior (MediatR pipeline), Auth CQRS (Login/Refresh/Me), DependencyInjection
- Infrastructure: ApplicationDbContext (IdentityDbContext), AuditingInterceptor (auto audit + soft delete), DbInitializer (seed 12 role + admin), DesignTimeDbContextFactory, JwtTokenService, DateTimeService, DI
- Api: CurrentUserService, GlobalExceptionMiddleware (ProblemDetails), AuthController, Program.cs rewrite (Serilog + JWT + CORS + Swagger), appsettings + launchSettings (port 5443)
- Migration Init applied to SolutionErp_Dev LocalDB

Frontend (React 19 + Vite 8 + Tailwind 4):
- fe-admin (:8082 blue) + fe-user (:8080 emerald) - shared structure, khac menu + brand color
- Tailwind 4 via @tailwindcss/vite plugin, theme brand colors
- AuthContext (localStorage token), ProtectedRoute, Layout (sidebar + header)
- UI kit: Button/Input/Label (CVA + Tailwind)
- LoginPage voi toast error, DashboardPage/InboxPage placeholder
- Axios interceptor: auto Bearer + 401 redirect
- TanStack Query client, React Router 7, Sonner toast

Package downgrades (do .NET 10 / TS 6 compat):
- MediatR 14 -> 12.4.1 (v14 breaking changes)
- Swashbuckle 10 -> 6.9.0 (v10 khong tuong thich OpenApi 2)
- Removed Microsoft.AspNetCore.OpenApi (conflict voi Swashbuckle)

E2E verified: POST /api/auth/login qua Vite proxy ca 2 FE -> JWT + user info

Credentials seed: admin@solutionerp.local / Admin@123456

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

fe-user/src/pages/InboxPage.tsx

@@ -0,0 +1,18 @@
+import { useAuth } from '@/contexts/AuthContext'
+
+export function InboxPage() {
+  const { user } = useAuth()
+
+  return (
+    <div className="p-8">
+      <h1 className="text-2xl font-bold text-slate-900">Hộp thư — HĐ chờ xử lý</h1>
+      <p className="mt-2 text-slate-600">
+        Xin chào <span className="font-medium">{user?.fullName}</span>. Vai trò:{' '}
+        <span className="font-mono text-sm">{user?.roles.join(', ')}</span>
+      </p>
+      <div className="mt-6 rounded-lg border border-slate-200 bg-white p-6 text-sm text-slate-500">
+        Danh sách HĐ chờ role của bạn xử lý sẽ hiển thị ở đây (Phase 3).
+      </div>
+    </div>
+  )
+}