v0.4.6

Fixed

• CI: dashboard lockfile drift: dashboard/bun.lock was out of sync
  with dashboard/package.json after the dependency update in 045ad44,
  causing bun install --frozen-lockfile to fail on every CI job
  (Quality matrix on ubuntu/macos/windows + Tests). Regenerated the
  lockfile so frozen installs resolve cleanly.

• TTFT-watchdog retry: ttft_ms excludes cooldown on retry: when the
  TTFT watchdog fired and a same-key or rewrite-escalation retry
  succeeded, the recorded ttft_ms and duration_ms included the
  watchdog timeout (60s) + cooldown (30s) + real upstream TTFT because
  ctx.startedAt was set once at request entry and never reset. Retry
  path now resets startedAt immediately before the re-dispatch, so
  recorded metrics reflect only the successful attempt's real duration.
  Incidents likewise survive a capture clear so the dashboard retains
  the failure trail.