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

backend/package.json

@@ -1,3 +1,17 @@
 {
-  "type": "commonjs"
+  "name": "fasto-backend",
+  "version": "1.0.0",
+  "type": "commonjs",
+  "main": "index.js",
+  "dependencies": {
+    "bcryptjs": "^3.0.3",
+    "cors": "^2.8.5",
+    "dotenv": "^16.4.7",
+    "express": "^4.18.2",
+    "jsonwebtoken": "^9.0.3",
+    "multer": "^1.4.5-lts.1",
+    "mysql2": "^3.9.1",
+    "nodemailer": "^8.0.1",
+    "uuid": "^9.0.1"
+  }
 }