Remove diagnostics appendage from all other skills. Only /setup and
/update-nanoclaw need telemetry — these are the two points where we
can detect regressions and track improvements across the user base.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Per-event consent diagnostics that sends anonymous install/update/skill data
to PostHog. Conflict filenames are gated against upstream. Supports --dry-run
to show exact payload before sending, and "never ask again" opt-out via state.yaml.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>