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- Migrate from PageLayout to EditFormPage (standard form pattern) - Add state management (PROCESSING/ERROR/READY) - Separate form input and result preview sections - Use #preview slot for policy evaluation results - Add evidence tracking (asOf, version) - Add dirty state (form has potential changes) - Improve result display: semantic HTML (dl/dt/dd) - Add CSS styles for result presentation Result: Consistent form pattern across all research tools Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>