fix: shorten layer0_html.go audit entry to pass MDS023 readability

The inline function-name list made the bullet's average sentence
length exceed the 14-word readability budget. Drop the list; the
function names are already documented in plan/2606260211.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VwsEmnkHJvLoaj8imqQRjJ

Author: claude

docs/development/architecture-audit.md

@@ -253,12 +253,8 @@ line-count violations.
 ### tax (2026-06-26)
 
 - `internal/lint/layer0_html.go` — seven
-  helpers lack dedicated tests; file entered
-  touched set via perf commit:
-  `openHTMLBlock`, `tagName.lowerInto`,
-  `type7TagIsRawText`, `type7TagBytes`,
-  `isTagByte`, `htmlBlockCloses`,
-  `scanner.tryHTMLBlock`. Tests doc
+  helpers lack dedicated tests. File entered
+  the touched set via a perf commit. Tests doc
   §"every function by name" —
   [plan/2606260211][2606260211].