filter slur handles from search results via atproto's explicit-slurs regexes
Ports bluesky's 7 Unicode-aware slur regexes into hasExplicitSlur(), which
checks both the raw handle and a separator-stripped version. Integrated into
extractProfileFields() so all enrichment paths auto-hide slur handles.
Also adds !suspend to MOD_HIDE_VALS (was missing, functionally identical to !takedown).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>