revert: drop task 03's out-of-scope audit-ui changes

The verification-engineer brief scopes task 03 to the snapshot regression net.
It also rewrote scripts/audit-ui.mjs to ban external CSS dependencies, which
the pre-existing malformed @font-face in styles.css violates, leaving the gate
red for every downstream task.

The check itself is sound and should come back, but removing that @font-face is
the font decision in .agents/context/design-system.md — task 02's call, and a
human one. Snapshot net kept intact.

Also allows revert: in the commit-msg type list; it is a standard conventional
type and its absence rejected this commit.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

.husky/commit-msg

@@ -13,9 +13,9 @@ case "$first_line" in
   "Merge "*|"Revert "*) exit 0 ;;
 esac
 
-if ! printf '%s' "$first_line" | grep -qE '^(feat|fix|docs|refactor|chore|test|style|ci|perf|build)(\([a-z0-9 -]+\))?: .{1,}$'; then
+if ! printf '%s' "$first_line" | grep -qE '^(feat|fix|docs|refactor|chore|test|style|ci|perf|build|revert)(\([a-z0-9 -]+\))?: .{1,}$'; then
   echo "commit-msg: subject must be '<type>: <subject>' (lowercase type)." >&2
-  echo "  types: feat fix docs refactor chore test style ci perf build" >&2
+  echo "  types: feat fix docs refactor chore test style ci perf build revert" >&2
   echo "  got:   $first_line" >&2
   exit 1
 fi