style(copy): fix remaining punctuation violations and make check:copy strict

Auto-fix of 602 string literals across 74 files (half-width punctuation next to
Chinese, parenthesised Chinese, quotes); biome reflow; e2/e6 assertions follow
the new full-width summaries. check:copy now runs with --strict in ci.

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

apps/web/app/components/subscriptions/model.ts

@@ -137,7 +137,7 @@ export const SKIP_REASON: Record<string, string> = {
   out_of_range: "集范围外",
   not_aired: "未播出",
   not_required: "该版本目标不要求这个内容版本",
-  suspected: "总集数未知,按已见最高集推断",
+  suspected: "总集数未知，按已见最高集推断",
   deferred: "有延后的资源",
 };