[HexCodeYT]

What changed

• Replaces the repeated project-status and feature sections with one tester-focused README.
• Puts the real Apple silicon install path, quarantine command, and smoke test near the top.
• Explains automatic engine refresh during drag-and-drop upgrades and how Pause Cleaning is preserved.
• Documents schemeless-link behavior with the exact YouTube and Amazon examples used during testing.
• Keeps the safety model, CLI commands, build steps, architecture, and rule contribution path without repeating them.
• Updates the launch, macOS, menu bar, and release docs for Preview 4.

Why

The old README mixed user installation, internal launch planning, project status, and developer reference material. It also repeated claims and retained stale text from before public releases existed. Preview 4 needs a short path that matches the behavior testers have now verified.

Verification

• Humanizer pass for repetitive, promotional, and formulaic wording
• cargo fmt --check
• cargo test
• cargo clippy --all-targets -- -D warnings
• git diff --check

All checks pass.