Add 30s terminal recording to README

[cobusgreyling]

Summary

Add a short terminal recording (GIF or embedded video) to README showing npx @cobusgreyling/outerloop init → evidence → verdict → ledger why.

Acceptance criteria

• Recording is under ~30 seconds and shows the core loop
• Linked or embedded in README near "Try it now"
• Works on GitHub markdown (GIF preferred)
• No secrets or personal paths visible

References

• QUICKSTART.md
• pnpm demo output in README collapsible section