code: nextjs,frontends,tsx (2 files)

frontends/nextjs/src/app/[tenant]/[package]/layout.tsx

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+/**
+ * Tenant-Scoped Layout
+ * 
+ * This layout wraps all pages under /{tenant}/{package}/...
+ * It provides tenant context to all child components.
+ */
+
+import { headers } from 'next/headers'
+import { notFound } from 'next/navigation'
+import { TenantProvider } from './tenant-context'
+
+interface TenantLayoutProps {
+  children: React.ReactNode
+  params: Promise<{
+    tenant: string
+    package: string
+  }>
+}
+
+export default async function TenantLayout({
+  children,
+  params,
+}: TenantLayoutProps) {
+  const resolvedParams = await params
+  const { tenant, package: pkg } = resolvedParams
+
+  // Validate tenant exists
+  // TODO: Check against database
+  // const tenantData = await getTenant(tenant)
+  // if (!tenantData) {
+  //   notFound()
+  // }
+
+  // Validate package exists and is installed for tenant
+  // TODO: Check against database
+  // const packageInstalled = await isPackageInstalled(tenant, pkg)
+  // if (!packageInstalled) {
+  //   notFound()
+  // }
+
+  return (
+    <TenantProvider tenant={tenant} packageId={pkg}>
+      <div className="tenant-layout" data-tenant={tenant} data-package={pkg}>
+        {children}
+      </div>
+    </TenantProvider>
+  )
+}

frontends/nextjs/src/middleware.ts

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+/**
+ * Next.js Middleware
+ * 
+ * Handles multi-tenant routing at the edge.
+ * Routes: /{tenant}/{package}/... are treated as tenant-scoped requests.
+ */
+
+import { NextResponse } from 'next/server'
+import type { NextRequest } from 'next/server'
+import { isReservedPath, RESERVED_PATHS } from '@/lib/routing/route-parser'
+
+export function middleware(request: NextRequest) {
+  const { pathname } = request.nextUrl
+
+  // Skip reserved paths
+  const firstSegment = pathname.split('/')[1]
+  if (!firstSegment || isReservedPath(firstSegment)) {
+    return NextResponse.next()
+  }
+
+  // Check if this looks like a tenant route: /{tenant}/{package}/...
+  const segments = pathname.split('/').filter(Boolean)
+  
+  if (segments.length >= 2) {
+    // Looks like a tenant route
+    const tenant = segments[0]
+    const pkg = segments[1]
+
+    // Add tenant info to headers for downstream use
+    const response = NextResponse.next()
+    response.headers.set('x-tenant-id', tenant)
+    response.headers.set('x-package-id', pkg)
+    
+    return response
+  }
+
+  return NextResponse.next()
+}
+
+export const config = {
+  matcher: [
+    /*
+     * Match all request paths except:
+     * - _next/static (static files)
+     * - _next/image (image optimization files)
+     * - favicon.ico (favicon file)
+     * - public folder
+     */
+    '/((?!_next/static|_next/image|favicon.ico|public/).*)',
+  ],
+}