v1.0.1 — bug-fix release

Fixes the exploding rate-limit percentages (values like 2050% — text is now clamped 0-100 like the bars), revives the dead session cost and duration segments (now read from the real cost.total_cost_usd / cost.total_duration_ms stdin fields), hardens the usage cache (per-user dir, ownership/symlink checks, atomic writes, validation), prevents field corruption from missing stdin fields, stops interpolating API strings into awk, derives the API User-Agent from the running Claude Code version, adds --no-optional-locks + timeout to git status, forces a stable numeric locale, and fixes two macOS-only date bugs (%-d, UTC parsing).