Anthropic is about to mass-extinction event the entire vibe coding category from inside a product people already have open. Lovable raised $25M. Bolt raised $100M+. Replit has been building this for years. They all share the same fatal assumption: that vibe coding is a standalone product category worth building a company around. Claude already has the users. The chat interface is already open on millions of screens. The model is already the best code-generation engine available. The only…