Provision solo-venus Vercel build+runtime-log read before its self-PTD floor is enforceable

From aro:evolutiva-management bs-mr8rcwpk2t7 (solo-default router), pluto #3 enablement: solo-venus-cc's self-PTD verify-floor requires it to READ Vercel build+runtime logs (build READY + no runtime errors), not just curl /api/health version. That Vercel-MCP competency today sits with audit-venus. Provision solo-venus Vercel read access BEFORE it starts owning Class-S pushes under the router, else self-PTD silently degrades to version-curl-only — the exact gap the verify-floor closes. Enablement precondition, not a code change; pairs with P2/P3.