docs: sync README with shipped components

[clawgreen]

Summary

• fix Quick Start import by adding TerminalOutput
• replace stale component status section with current shipped component inventory
• remove incorrect "coming soon" references for already-delivered components

Validation

• docs-only change; no runtime code modified

Tracking

• Refs [Atomic 01] Sync README with actual shipped components clawgreen/terminal-ui#1

[vercel]

@clawgreen is attempting to deploy a commit to the 0xBuns Team on Vercel.

A member of the Team first needs to authorize it.

[BunsDev]

Maintainer triage: holding this until the repo-health items and the current component queue settle. The direction is fine, but merging README inventory updates before the active component PRs are decided will create avoidable churn.