feat(admin-dashboard): add edge middleware for API route auth gating

dashboards/admin-web/src/middleware.ts

@@ -0,0 +1,52 @@
+import { NextRequest, NextResponse } from 'next/server';
+
+/**
+ * Edge middleware — lightweight JWT presence check on all /api/* routes.
+ * Does NOT verify the token (that happens in route handlers via requireAdmin/getCurrentUser).
+ * Blocks completely unauthenticated requests before they reach API logic.
+ */
+
+const PUBLIC_PATHS = new Set([
+  '/api/auth/login',
+  '/api/auth/forgot-password',
+  '/api/health',
+  '/api/seed',
+]);
+
+function isPublic(pathname: string): boolean {
+  return PUBLIC_PATHS.has(pathname);
+}
+
+function getToken(req: NextRequest): string | null {
+  // Cookie: token=...
+  const cookie = req.cookies.get('token');
+  if (cookie?.value) return cookie.value;
+
+  // Authorization: Bearer ...
+  const authHeader = req.headers.get('authorization');
+  if (authHeader?.startsWith('Bearer ')) return authHeader.slice(7);
+
+  return null;
+}
+
+export function middleware(req: NextRequest) {
+  const { pathname } = req.nextUrl;
+
+  // Only protect /api/* routes (skip pages, static assets, etc.)
+  if (!pathname.startsWith('/api/')) return NextResponse.next();
+
+  // Allow public routes
+  if (isPublic(pathname)) return NextResponse.next();
+
+  // Require token presence
+  const token = getToken(req);
+  if (!token) {
+    return NextResponse.json({ error: 'Unauthorized' }, { status: 401 });
+  }
+
+  return NextResponse.next();
+}
+
+export const config = {
+  matcher: '/api/:path*',
+};