- Run cargo fmt on all Rust crates for consistent formatting
- Update CLAUDE.md with WASM plugin commands and dev.ps1 instructions
- Update wiki: add WASM plugin architecture, rewrite dev environment docs
- Minor frontend cleanup (unused imports)
Store Redis client in AppState instead of discarding it. Create
rate_limit middleware using Redis INCR + EXPIRE for fixed-window
counting. Apply user-based rate limiting (100 req/min) to all
protected routes. Graceful degradation when Redis is unavailable.