Testimonials include full attribution

A testimonial attributed to "— Mike" or "Happy Customer" reads as either lazy or fabricated, and visitors discount it accordingly. Full attribution — name, role, and company — converts a testimonial from ambient copy into verifiable social proof a visitor can actually go check, and the specificity itself signals that the customer was real enough to stand behind the quote publicly.

Update every testimonial entry to include the full name plus either role or company (ideally both). Refactor components/testimonial-card.tsx to accept structured attribution fields so weak placeholders are impossible:

interface TestimonialProps {
  quote: string
  name: string      // "Jane Smith"
  role: string      // "Head of Marketing"
  company: string   // "Acme Corp"
  avatarUrl?: string
}

If real testimonials are still pending, use realistic placeholder attribution rather than first-name-only.