chore: sync infra docs and coverage

backend/package.json

@@ -9,7 +9,8 @@
     "test": "jest",
     "test:watch": "jest --watch",
     "migrate": "node src/database/migrate.js",
-    "seed": "node src/database/seed.js"
+    "seed": "node src/database/seed.js",
+    "lint": "eslint --ext js src"
   },
   "dependencies": {
     "express": "^4.18.2",
@@ -18,7 +19,9 @@
     "bcryptjs": "^2.4.3",
     "jsonwebtoken": "^9.0.2",
     "pg": "^8.11.3",
-    "multer": "^1.4.5-lts.1",
+    "multer": "^2.0.0",
+    "express-rate-limit": "^6.10.0",
+    "sanitize-filename": "^1.6.3",
     "express-validator": "^7.0.1",
     "dotenv": "^16.3.1",
     "uuid": "^9.0.1",
@@ -28,7 +31,9 @@
     "nodemon": "^3.0.2",
     "jest": "^29.7.0",
     "supertest": "^6.3.3",
-    "@types/jest": "^29.5.8"
+    "@types/jest": "^29.5.8",
+    "eslint": "^8.57.0",
+    "eslint-plugin-jest": "^27.9.0"
   },
   "keywords": ["recruiter", "saas", "workflow", "hiring"],
   "author": "MerchantsOfHope-SupplyANdDemandPortal",