- Add global window.FlowDeck namespace with createPage() and showCreateFolderModal() - createPage() creates a Notion-style page via /board/api/pages (same as sidebar bottom-right button) - showCreateFolderModal() opens a global themed modal (dark/light) instead of browser prompt() - All New Page buttons now call window.FlowDeck.createPage() - All New Folder buttons now call window.FlowDeck.showCreateFolderModal() - Global New Folder modal uses existing .flowdeck-modal CSS classes for theme consistency - Updated Ctrl+N keyboard shortcut to use unified createPage()