v1.4.0 — Framework integration and feedback submission

Adds explicit lifecycle and framework integration APIs, ES module and CommonJS entry points with TypeScript declarations, and optional feedback submission to your own HTTP endpoint.

• Initialize and destroy the review layer cleanly, with opt-in SPA navigation and recovery after dynamic content changes.
• Render text highlights without modifying host text, preserve legacy quote anchors, and support visible text inside display: contents elements.
• Submit the current page's JSON export explicitly, with timeout/error handling and local comments preserved on failure.
• Prefill issue URLs with encoded page, count, and summary values; includes a dependency-free Node feedback receiver.
• Keep route changes and immediate feedback submission consistent, and remove test hooks from the published API.

Validation: 798 browser checks passed across six projects without retries before the version bump; release-version integration, lifecycle, highlight, receiver, and package checks passed.