NatureCo CLI v5.65.0

Persistent browser agent

• Uses installed system Chrome/Chromium with a dedicated persistent NatureCo profile.
• Adds visible open → snapshot → @ref click/fill → snapshot automation.
• Preserves login and storage across calls and REPL turns.
• Distinguishes browser-agent mode from control of an already-open Chrome window.
• Includes MIT gstack architecture attribution.

Verification

• Live system-Chrome open/snapshot/close smoke passed.
• 78 test files and 745 tests passed; 3 skipped.
• macOS, Ubuntu, Windows, and CodeQL passed.