鄭沛軒 74bafd3739 docs: clean up old structure and update requirements with complete feature breakdown ... - Remove old docs structure (design/, development/, technical/) - All content migrated to numbered structure (02_design/, 03_development/, 04_technical/) - Update requirements.md with comprehensive 67-interface feature analysis - Break down into 4 major categories: Authentication (13), Core Learning (23), Tasks (32), Business (3) - Add detailed target user analysis and competitive differentiation - Document complete learning ecosystem from onboarding to mastery 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>		2025-09-06 10:07:52 +08:00
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founding_pitch.md	feat: initial project setup with comprehensive documentation	2025-09-05 21:45:07 +08:00
requirements.md	docs: clean up old structure and update requirements with complete feature breakdown	2025-09-06 10:07:52 +08:00
system_structure_design.json	docs: create comprehensive user flow specification and unify UI naming	2025-09-06 02:24:44 +08:00