Started new initial React frontend, aadditinal changes for Django to run REST.

frontend/src/components/DeviceCredentialsDialog.tsx

@@ -0,0 +1,40 @@
+import * as Dialog from '@radix-ui/react-dialog'
+import CredentialsViewer from './CredentialsViewer'
+import type { DeviceRegistrationResponse } from '../types/api'
+
+interface DeviceCredentialsDialogProps {
+  open: boolean
+  onOpenChange: (open: boolean) => void
+  credentials: DeviceRegistrationResponse | null
+  deviceName?: string
+}
+
+export default function DeviceCredentialsDialog({ open, onOpenChange, credentials, deviceName }: DeviceCredentialsDialogProps) {
+  if (!credentials) {
+    return null
+  }
+
+  return (
+    <Dialog.Root open={open} onOpenChange={onOpenChange}>
+      <Dialog.Portal>
+        <Dialog.Overlay className="fixed inset-0 bg-black/50 data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0" />
+        <Dialog.Content className="fixed left-1/2 top-1/2 z-50 max-h-[85vh] w-[90vw] max-w-[600px] -translate-x-1/2 -translate-y-1/2 rounded-lg bg-base-100 p-6 shadow-xl overflow-y-auto">
+          <Dialog.Title className="text-2xl font-bold mb-4">
+            {deviceName ? `${deviceName} Credentials` : 'Device Credentials'}
+          </Dialog.Title>
+          <Dialog.Description className="text-base-content/70 mb-4">
+            Store these credentials securely. They are only shown once after issuing the certificate.
+          </Dialog.Description>
+
+          <CredentialsViewer credentials={credentials} deviceId={credentials.device_id} />
+
+          <div className="flex justify-end mt-6">
+            <Dialog.Close asChild>
+              <button className="btn btn-primary">Done</button>
+            </Dialog.Close>
+          </div>
+        </Dialog.Content>
+      </Dialog.Portal>
+    </Dialog.Root>
+  )
+}