PDP hero CTA: plain "In den Warenkorb", not "\${product.name} bestellen"

Matches the closing ProductPricingPanel's own label now — both buttons
say the same generic thing.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013Eg6h91yngXmSnM51wxXM8

app/der-eine/page.tsx

@@ -10,8 +10,8 @@ import { buildProductSchema } from "../lib/structuredData";
 const title = "Der Eine. – Für die eine Sache, die gerade zählt.";
 
 // der-eine was the reference template the whole PDP block-builder system
-// was designed to match (gallery sizing, black stepRow-facts icons,
-// CTA-label pattern — see ProductBlocks.tsx's own comments) — now migrated
+// was designed to match (gallery sizing, black stepRow-facts icons — see
+// ProductBlocks.tsx's own comments) — now migrated
 // onto it itself, same as /tasse-die-pause before it. Testimonials.tsx
 // dropped entirely rather than migrated: the PDP builder no longer offers
 // testimonialsRef (removed 2026-08-29, unused everywhere; the planned