fix(bitbucket): skip Cloud API reads for unsupported Server remotes#22029

Merge remote-tracking branch 'upstream/main' into babysit-22029

fix(bitbucket): check the context host before an explicit repository

Merge main (66ee628e08) into r6/a8-14

Merge main (05696c636e) into r6/a8-14

fix(bitbucket): fail a self-hosted context instead of falling back to a Cloud remote

test(bitbucket): assert self-hosted request URLs before the error tag

fix(bitbucket): forward servesHost and keep provider construction infallible

fix(bitbucket): skip Cloud API reads for unsupported Server remotes