chore: germantax customer project

apps/app/src/auth/providers/credentials.ts

@@ -0,0 +1,18 @@
+import { Mail } from 'lucide-react'
+import type { AuthProvider } from './_types'
+
+/**
+ * Email + password via @pikku/auth-js credentials provider.
+ * The backend route is POST /auth/callback/credentials.
+ * Login is handled by the /login form directly.
+ */
+export const credentials: AuthProvider = {
+  id: 'email',
+  labelKey: 'auth:providers.email',
+  Icon: Mail,
+  tone: 'primary',
+  envVars: ['AUTH_SECRET'],
+  login: () => {
+    window.location.href = '/login'
+  },
+}