Increase cache TTL to 10min, show "?" when usage data unavailable

Fix 429 handling: don't assume 100% session, use stale cache as-is

Fix stale usage data: handle 429, add cross-session dedup, increase cache TTL

Simplify statusline: deduplicate helpers, fix efficiency issues

Remove block bar style, refactor update indicator into parts array

Show block count next to each bar size

Replace bash script with Node.js statusline

Fix hero SVGs: correct element order, remove costs, remove artifacts

Fix element order and add light terminal demo

Add SVG preview graphics for professional README

Add one-liner installers for macOS/Linux and Windows

Add Claude Code update check to status line

Initial release: configurable Claude Code status line