style(copy): punctuation rules and site-wide fix with a CI check (QA U11)

- glossary: 10 punctuation rules (full-width in Chinese, CJK/Latin spacing,
  full-width parens around Chinese, single ellipsis, 「」 quotes, period rules)
- scripts/check-copy-punctuation.mjs: checks string literals, templates and JSX
  text (not comments, types, keys, match/compare strings); --fix, --strict,
  --by-file; wired into deno task ci as check:copy in warn mode
- --fix applied to web, server and contracts; files other lanes were editing
  (subscriptions, sites, browser, agent, auth/account, inventory) left for them
- tests updated for the changed messages

Co-Authored-By: Claude Opus 5.5 <[email protected]>

apps/web/app/routes/console/downloads.plans.tsx

@@ -78,7 +78,7 @@ export default function DownloadPlansPage() {
 
   return (
     <>
-      <PageHeader title="下载面板" description="候选被选中后生成计划,同时预留版本目标、空间与预算。" />
+      <PageHeader title="下载面板" description="候选被选中后生成计划，同时预留版本目标、空间与预算。" />
       <DownloadsTabs />
       <FilterBar onReset={f.active ? f.reset : undefined}>
         <FilterSelect