sonar and other files

.env.example

@@ -0,0 +1,7 @@
+# Backend Service Environment Variables
+PORT=3000
+DB_HOST=localhost
+DB_PORT=3306
+DB_USER=root
+DB_PASSWORD=rootpass
+DB_NAME=inventory

.eslintrc.json

@@ -0,0 +1,15 @@
+{
+  "env": {
+    "node": true,
+    "es2021": true,
+    "jest": true
+  },
+  "extends": "eslint:recommended",
+  "parserOptions": {
+    "ecmaVersion": "latest"
+  },
+  "rules": {
+    "no-unused-vars": ["error", { "argsIgnorePattern": "^_" }],
+    "no-console": "off"
+  }
+}

sonar-project.properties

@@ -0,0 +1,14 @@
+sonar.projectKey=inventory-backend
+sonar.projectName=Inventory Backend Service
+sonar.projectVersion=1.0
+
+# Source and test paths
+sonar.sources=src
+sonar.tests=tests
+sonar.javascript.lcov.reportPaths=coverage/lcov.info
+
+# Exclusions
+sonar.exclusions=node_modules/**,coverage/**,tests/**
+
+# Quality gate
+sonar.qualitygate.wait=true