Add Signup & Login Pages

The website currently does not have a user authentication system. I will design and develop dedicated Signup and Login pages with responsive UI. These pages will be ready to integrate with backend authentication (email/password or OAuth) to enable secure user accounts.

Look for existing page components in the frontend to understand the project's UI patterns. The signup and login pages will need forms for email/password input and likely buttons for OAuth providers. Check if there are any existing routes or authentication utilities to integrate with. A responsive design is required, so review the CSS framework or styling approach used.

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