[codex] Add design-aware detector rules (#252)

* Add design-aware detector rules

* Fix design-aware detector noise

* Unify CLI and hook detector ignores

* Fix remaining design-system review findings

* Add detector ignore CLI

* Fix design detector review findings

* Fix design color source false positives

* Fix core test suite registration

* Add design-aware detector docs

* Fix font priority design-system parsing

* Fix color ignore value matching

cli/engine/engines/static-html/css-cascade.mjs

@@ -272,6 +272,7 @@ const STATIC_DEFAULT_STYLE = {
   marginBottom: '0px',
   marginLeft: '0px',
   position: 'static',
+  visibility: 'visible',
   top: 'auto',
   right: 'auto',
   bottom: 'auto',
@@ -326,6 +327,7 @@ const STATIC_PROP_MAP = {
   'margin-bottom': 'marginBottom',
   'margin-left': 'marginLeft',
   'position': 'position',
+  'visibility': 'visibility',
   'top': 'top',
   'right': 'right',
   'bottom': 'bottom',