- Move app.use(router) after await authStore.init() so the beforeEach guard
sees the correct isAuthenticated state on page load
- Fix backfill_session_costs._root_prefix: remove underscore→dash replacement
that caused paths like /Users/ai_leed/... to not match ~/.claude/projects/ folders
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>