Help pls - Google Indexing new SQSP Site: Failed: Blocked by robots.txt

Hi,

https://www.ashleymichaelbriggs.com/

Site's been up for a month. Have tried Google Indexing twice, both failed. This is frying my mind - I feel like I'm back at high school physics class. Please can some one offer some tips. Thanks in advance. (Domain is hosted off squarespace if that has anything to do with it. And I have another URL pointing to this one, ashleybriggs.co.uk)

When I type in https://www.ashleymichaelbriggs.com/robots.txt or use a robots.txt Validator and Testing Tool I get this, which seems ok, right?;

# Squarespace Robots Txt

User-agent: GPTBot
User-agent: ChatGPT-User
User-agent: CCBot
User-agent: anthropic-ai
User-agent: Google-Extended
User-agent: AdsBot-Google
User-agent: AdsBot-Google-Mobile
User-agent: AdsBot-Google-Mobile-Apps
User-agent: *
Disallow: /

Sitemap: https://www.ashleymichaelbriggs.com/sitemap.xml

I get a green Valid / Status '200 OK' on this testing tool.

Using Google URL Inspection it results in either:

Blocked due to unauthorized request (401)

Or;

URL is not available to Google

YES! Man, wish I'd asked here before burning through hours of ineptitude. Thanks Collaborada, I'm really grateful.