[Ava-91]

Closes #101

Summary

• refresh README with current v1 release-candidate status
• document real-world disposable-library validation
• document metadata None clearing and artwork inspection behavior
• document safe rename blocking and filename-template validation
• expand CLI, safety, workflow, development, and troubleshooting docs
• explicitly distinguish release-candidate readiness from the final v1 smoke-test checklist

Validation

• CI on the documentation branch passed successfully
• existing real-world validation and 10/10 configuration tests are documented from the completed remediation pass