feat: backend rebuild

backend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "dms-backend",
-  "version": "0.6.0",
+  "version": "0.8.0",
   "private": true,
   "type": "module",
   "main": "src/index.js",
@@ -11,7 +11,12 @@
     "dev": "nodemon --watch src src/index.js",
     "dev:desktop": "node --watch src/index.js",
     "start": "node src/index.js",
-    "lint": "echo 'lint placeholder'",
+    "lint": "eslint . --ext .js",
+    "lint:fix": "eslint . --ext .js --fix",
+    "test": "jest",
+    "test:watch": "jest --watch",
+    "test:coverage": "jest --coverage",
+    "test:watch:coverage": "jest --watch --coverage",
     "health": "node -e \"fetch('http://localhost:'+ (process.env.BACKEND_PORT||3001) +'/health').then(r=>r.text()).then(console.log).catch(e=>{console.error(e);process.exit(1)})\"",
     "postinstall": "node -e \"console.log('Installed dms-backend %s','0.6.0')\""
   },
@@ -33,6 +38,12 @@
     "winston": "^3.13.0"
   },
   "devDependencies": {
-    "nodemon": "^3.1.10"
+    "nodemon": "^3.1.10",
+    "eslint": "^8.56.0",
+    "prettier": "^3.1.0",
+    "eslint-config-prettier": "^9.0.0",
+    "eslint-plugin-prettier": "^5.0.0",
+    "jest": "^29.7.0",
+    "supertest": "^6.3.4"
   }
 }