feat: replace vanilla frontend with React + Vite UI
Deepfake Authenticator
70348ce
- New frontend-react/ with React 18 + TypeScript + Tailwind CSS v4
- GridScan WebGL background on hero (Three.js + postprocessing)
- PillNav replaced with RadioNav icon tab bar
- Styled-components buttons: AnalyzeButton, InitiateButton, FileUploadInput
- Purple/black dark theme throughout all pages
- SVG area chart for frame-by-frame analysis
- Neumorphic cards on result page
- React Router with /pricing page
- Remove frontend-vanilla/ and stitch design artifacts
