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/sites/site-add-dialog.tsx

@@ -96,9 +96,9 @@ export function SiteAddDialog({ onClose }: { onClose: () => void }) {
       const u = new URL(form.baseUrl.trim());
       if (!/^https?:$/.test(u.protocol)) throw new Error();
     } catch {
-      fe.baseUrl = "填完整地址,如 https://example.org";
+      fe.baseUrl = "填完整地址，如 https://example.org";
     }
-    if (custom && !/^[a-z][a-z0-9_-]*$/.test(form.key.trim())) fe.key = "小写字母开头,只含小写字母、数字、- 和 _";
+    if (custom && !/^[a-z][a-z0-9_-]*$/.test(form.key.trim())) fe.key = "小写字母开头，只含小写字母、数字、- 和 _";
     let body = null;
     if (kinds.length) {
       // 账号标签用站点标识:服务端 secret 名按标签生成且全局唯一,多站都叫 default 会冲突
@@ -258,14 +258,14 @@ export function SiteAddDialog({ onClose }: { onClose: () => void }) {
                       onClick={() => pick(CUSTOM)}
                       className="w-full rounded-lg border border-dashed border-border px-3 py-2 text-left text-caption text-muted-foreground hover:border-foreground/40 hover:text-foreground"
                     >
-                      自定义 RSS 站点:只抓 Feed,不登录
+                      自定义 RSS 站点：只抓 Feed，不登录
                     </button>
                   </section>
                 </>
               )}
             </div>
             <p className="mt-3 text-meta text-muted-foreground">
-              "未实测"的定义没有在真实站点上验证过,列表和登录可能失败。
+              "未实测"的定义没有在真实站点上验证过，列表和登录可能失败。
             </p>
           </div>
         ) : step === 2 ? (
@@ -343,7 +343,7 @@ export function SiteAddDialog({ onClose }: { onClose: () => void }) {
           <div className="min-w-0 space-y-3" data-state={phase ? "running" : "done"} aria-busy={busy}>
             <p className="text-caption text-muted-foreground">
               {created ? `已添加「${created.name}」。` : ""}
-              {phase ?? (login?.ok === false ? "可以返回修改凭证后重试,或先保存,之后在站点页处理。" : "")}
+              {phase ?? (login?.ok === false ? "可以返回修改凭证后重试，或先保存，之后在站点页处理。" : "")}
             </p>
             {phase ? <LoadingState rows={2} /> : null}
             <LoginResultView