feat: update campaign types to include user_id_nickname and add comments and signature item interfaces
feat: improve campaign detail page with comments functionality and remove comment feature
feat: refactor campaigns page to use new campaign service and update tab labels to Persian
feat: enhance user profile page with image upload functionality and improved form handling
fix: update router paths for campaign detail page
feat: implement user authentication context and protected route handling
feat: add global types for token management
feat: create utility functions for image handling and uploading
