- Complete rewrite replacing corrupted encoding
- Sync narrative: Git-backed failure lesson network, 205+ lessons, 52+ nodes
- Preserve Chinese-friendly expression, not word-for-word translation
- All links verified valid
- Structure: quick nav, what it solves, how it differs, quick start, search, contribute, data, roadmap

Signed-off-by: Ikalus1988 <sheldonisspark@gmail.com>