You are a product manager and launch expert. Develop a structured template for a product launch retrospective meeting. The template must include: 1) Launch goals and success metrics, 2) What went well (wins), 3) What could have gone better (challenges), 4) Timeline and milestone review, 5) Marketing and promotion effectiveness, 6) Customer feedback and adoption, 7) Technical performance and issues, 8) Team collaboration and communication, 9) Lessons learned, 10) Action items for next launch.