fix(web): drop em dash from hero sub copy

Author: javierdejesusda

web/components/sections/hero.tsx

@@ -175,7 +175,7 @@ export function Hero() {
             <span className="line"><em>span-cited</em> receipts.</span>
           </h2>
           <p className="hero-stage__sub">
-            <span className="jp-loan">Yūhō</span> are Japan&rsquo;s annual securities reports &mdash; the equivalent of US 10-Ks, ~88,000 pages filed each year by listed companies. <strong>YuhoLens</strong> reads them in English with every claim, currency, margin, and segment linked back to a page and span in the source. Open weights, GGUF on AMD silicon.
+            <span className="jp-loan">Yūhō</span> are Japan&rsquo;s annual securities reports: the equivalent of US 10-Ks, ~88,000 pages filed each year by listed companies. <strong>YuhoLens</strong> reads them in English with every claim, currency, margin, and segment linked back to a page and span in the source. Open weights, GGUF on AMD silicon.
           </p>
           <div className="hero-stage__cta">
             <a href="#problem" className="hero-stage__btn">Read the case</a>

web/lib/accent-kanji.ts

@@ -30,7 +30,7 @@ export const ACCENT_KANJI: Record<string, string> = {
 
 /**
  * Normalise an accent span's text content for lookup against ACCENT_KANJI.
- * Lower-cases, trims, and strips a single trailing comma — periods are kept
+ * Lower-cases, trims, and strips a single trailing comma. Periods are kept
  * because some keys (e.g. "192 gb hbm3.") encode them deliberately.
  */
 export function lookupAccentKanji(raw: string): string | undefined {

web/lib/use-ink-bleed.ts

@@ -2,7 +2,7 @@
 import { useEffect } from "react";
 
 /**
- * Layer 2.3 — Ink-bleed accent on hover.
+ * Layer 2.3 Ink-bleed accent on hover.
  *
  * Scans for `.accent`, `.btn-primary`, `.access-card-link` and attaches a
  * hover handler that reads pointer entry coordinates and writes them as