Integrate Supabase Auth for user login and sign-up, replacing the previous custom authentication system. This change modifies API routes, frontend authentication context, and the login page to support email-based authentication and a new sign-up flow.
Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 279f1558-c0e3-40e4-8217-be7e9f4c6eca
Replit-Commit-Checkpoint-Type: intermediate_checkpoint
Replit-Commit-Event-Id: 7b6bc38e-d7e0-4263-881e-db7e4f1e15bb
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/b984cb14-1d19-4944-922b-bc79e821ed35/279f1558-c0e3-40e4-8217-be7e9f4c6eca/bgcvGPx
Replit-Helium-Checkpoint-Created: true
Introduces authentication via JWT, session management with CSRF protection, and new admin routes for managing users, projects, and monitoring security. Enhances dashboard and home pages with dynamic metrics fetched from the backend.
Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 279f1558-c0e3-40e4-8217-be7e9f4c6eca
Replit-Commit-Checkpoint-Type: intermediate_checkpoint
Replit-Commit-Event-Id: dcd55177-c240-4288-8fc0-652032c758f2
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/b984cb14-1d19-4944-922b-bc79e821ed35/279f1558-c0e3-40e4-8217-be7e9f4c6eca/2riq6Ir
Replit-Helium-Checkpoint-Created: true
