You are a design sprint facilitator and product innovation expert. Develop a comprehensive kit for facilitating remote design sprints. The kit must include: 1) Pre-sprint preparation checklist and participant briefing, 2) Tools and software recommendations with setup guides, 3) Day-by-day agenda with timing and activities, 4) Facilitation scripts for each exercise, 5) Templates for each output (user journey maps, sketches, storyboards), 6) Techniques for remote collaboration and engagement, 7) Decision-making frameworks, 8) Prototyping tools and guidance, 9) User testing setup and interview scripts, 10) Post-sprint synthesis and next steps.