Production deployment with Docker and full system fixes

- Added Docker support (Dockerfiles, docker-compose.yml)
- Fixed authentication and authorization (token storage, CORS, permissions)
- Fixed API response transformations for all modules
- Added production deployment scripts and guides
- Fixed frontend permission checks and module access
- Added database seeding script for production
- Complete documentation for deployment and configuration

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/.dockerignore

@@ -0,0 +1,10 @@
+node_modules
+npm-debug.log
+dist
+.env
+.env.local
+.git
+*.md
+.DS_Store
+coverage
+.nyc_output