v0.3.17

Added

• Dashboard: thinking token percentage on Total Out tile — the
  Performance tab's "Total Out" sub-line now shows the thinking-to-output
  ratio (e.g. 3.0K thinking (25.0%)) when thinking tokens are present.
  Percentage omitted when output or thinking is zero. No backend or SQL
  change — all data already aggregated in PERFORMANCE_STATS_SQL.

Fixed

• CI: flaky EnvironmentTeardownError — Recharts emits an async
  console.warn for zero-dimension charts in jsdom, which raced with
  vitest worker teardown and failed CI despite all tests passing. The
  specific warning is now suppressed in the test setup; all other
  console.warn calls pass through unchanged.