feat: implement Clerk webhooks for user and payment handling, add authentication middleware, and update package dependencies

feat: add initial Prisma setup with User and Project models, including migrations and configuration

feat: initialize backend with Express, Prisma, and PostgreSQL setup

chore: update backend dependencies and add TypeScript configuration

add initial package.json for backend setup

remove unused useRef import from Pricing component

replace custom pricing plans implementation with Clerk's PricingTable component for streamlined pricing display

add Clerk integration with environment variable setup and update Navbar for user authentication

refactor Loading component for improved structure and add loading animation

implement Plans page layout with Pricing component and credit information

add download buttons for image and video; implement video generation feature in Result page

update Result page with project data fetching and loading state; add baseline-browser-mapping dependency

add action menu to ProjectCard for image/video download, sharing, and deletion

add PrimaryButton component and update MyGeneration page for better user interaction

implement MyGeneration page with loading state and project display