fix(agents): keep import tokens outside URI scheme matches

docs/development/agent-workflow.md

@@ -71,7 +71,7 @@ HTML video, audio, source and track `src` assets and video posters use the same
 existence checks as images. Entity decoding uses full HTML text/attribute rules,
 including references whose semicolon may be omitted.
 Inline guidance imports are rejected after punctuation as well as whitespace.
-At-signs inside external URIs (including opaque schemes such as mailto) are excluded
+At-signs inside external URIs (including explicit opaque autolinks such as mailto) are excluded
 per HTML text node, preserving adjacent imports. A colon directly before an import
 does not make that import a URI.
 A closing bracket followed by punctuation and an at-sign terminates a bare URL exclusion.