Adversarial Citation Payload
A JS citation must vanish.
A data citation must vanish.
A protocol-relative citation must vanish.
An unsafe markdown link [Click Me](javascript:alert(2)) must degrade to text.
A safe one Consumer Reports must become a link.
Two in one line: alpha.example.com and beta.example.com done.
Inside a link: anchor with [Source: https://nested.example.com/n] inside.
Verbatim: [Source: https://code.example.com/verbatim] stays.
[Source: https://pre.example.com/verbatim]