feat: implement secure multi-tenancy, RBAC, and premium dark mode

- Enforced tenant isolation and Role-Based Access Control across all API routes

- Implemented secure profile avatar upload using multer and UUIDs

- Redesigned UI with a premium "Onyx & Gold" Charcoal dark mode

- Added Funnel Stage and Origin filters to Dashboard and User Detail pages

- Replaced "Referral" with "Indicação" across the platform and database

- Optimized Dockerfile and local environment setup for reliable deployments

- Fixed frontend syntax errors and improved KPI/Chart visualizations

tsconfig.json

@@ -11,7 +11,8 @@
     ],
     "skipLibCheck": true,
     "types": [
-      "node"
+      "node",
+      "vite/client"
     ],
     "moduleResolution": "bundler",
     "isolatedModules": true,