fix(web): numbered composer lists nest and lift correctly#17138

fix(fixtures): make composer list evidence paths portable

fix(ci): register composer list browser fixture with knip

Merge remote-tracking branch 'origin/main' into fix/issue-17124

test(web): add reusable composer list evidence fixtures

fix(web): list nesting ignores markers inside multiline mention chips

fix(web): Tab nests under tab-separated numbered parents at their content column

Merge preserved numbered-list fix after adapting it to main

fix(web): Tab nests numbered composer items as real Markdown lists

test(web): reproduce numbered composer list nesting (#17124)

fix(web): keep caret before a nested list marker

fix(web): simplify numbered composer list nesting

Merge remote-tracking branch 'origin/main' into fix/composer-nested-ordered-list

fix(web): Tab nests numbered list items in the composer