feat: add advanced element styling and UI updates

feat(editor): add shadow intensity hover controls

feat(editor): add element duplicate and delete actions

fix: prevent forced default colors for full HTML pages

fix: filter Tailwind script and improve content styling

feat: integrate Tailwind CSS with scoped styling

feat: add CSS scoping utility

refactor: remove Tailwind CDN and CSS scoping logic

feat: configure Tailwind CSS for visual canvas

feat: implement CSS scoping for user content

feat: allow stripping HTML wrapper during ID injection

feat: add reset functionality to default template

feat(ui): improve widget sidebar styling and canvas rendering

feat: extract and apply body attributes

feat: implement local draft persistence and UI styling

feat: add local image upload support

style: force light mode for editor content

feat: add image dragging and resizing support

feat: support Hugging Face Space URLs in backend settings

feat: add deployment configuration and CORS support

feat: add state for form controls and iframe management

feat: implement deterministic data-el-id generation

feat: initialize visual HTML editor project