Enhance organizer documentation with failure patterns and facilitation guidance

[icoxfog417]

Summary

This PR enhances the organizer documentation with practical guidance to improve workshop success rates.

Changes

• day0.md: Added 7 common failure patterns with specific solutions for proactive risk management
• day1.md: Added detailed facilitation points for each workshop phase (Listen, Define, Invent, Refine, Test/Iterate)

Benefits

• Helps organizers identify and prevent common workshop failures early
• Provides specific guidance for handling typical challenges during facilitation
• Improves overall workshop success rate through better preparation and execution

Failure Patterns Added

1. 行き先不明パターン (Unclear destination)
2. 顧客の不在パターン (Missing customers)
3. 影の支配者パターン (Shadow decision maker)
4. 反逆者パターン (Resistance to process)
5. 優等生パターン (Process over quality focus)
6. 誇大妄想パターン (Unrealistic scope)
7. 失踪パターン (Post-workshop abandonment)

Facilitation Points Added

• Common issues and specific solutions for each workshop phase
• Practical prompting techniques for better AI-generated content
• Guidance for managing participant dynamics and expectations