WP Job Manager doesn’t provide a built-in registration/login page.
To enable registration you can follow this guide. Additionally, you can have a look at this guide if you intend to build a custom login page.
If you intend to use the WooCommerce plugin, another way to achieve that is to use the WooCommerce built-in shortcodes and blocks.
You will most likely want to add a code snippet to redirect the login page. You can get that snippet from our Changing Login Redirects documentation page.
You will want to add the “Catch All” snippet from that page.
We’d recommend using a plugin like Code Snippets to add this code to your site rather than adding it directly to functions.php: