chore(style): repo-wide prettier sweep before v1.4.6 tag

Long-overdue prettier sweep; prettier had drifted vs. checked-in code
across ~130 files (mostly long-argument line-break wrapping in TS and
table-padding in markdown). Pure formatting — no semantic changes —
and required to clear the v1.4.6 release gate's `pnpm format:check`.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/components/layout/auth-shell.tsx

@@ -116,7 +116,7 @@ export function AuthShell({ children }: { children: React.ReactNode }) {
       ) : null}
       <a
         href="#main-content"
-        className="bg-primary text-primary-foreground fixed left-2 top-2 z-[100] rounded-md px-4 py-2 text-sm font-medium opacity-0 focus:opacity-100"
+        className="bg-primary text-primary-foreground fixed top-2 left-2 z-[100] rounded-md px-4 py-2 text-sm font-medium opacity-0 focus:opacity-100"
       >
         {t("nav.skipToContent")}
       </a>