chore(backend): configure commitlint and husky

package.json

@@ -23,7 +23,8 @@
     "test:watch": "jest --watch",
     "test:cov": "jest --coverage",
     "test:debug": "node --inspect-brk -r tsconfig-paths/register -r ts-node/register node_modules/.bin/jest --runInBand",
-    "test:e2e": "jest --config ./apps/gateway/test/jest-e2e.json"
+    "test:e2e": "jest --config ./apps/gateway/test/jest-e2e.json",
+    "prepare": "husky"
   },
   "dependencies": {
     "@nestjs/common": "^11.0.1",
@@ -34,6 +35,8 @@
   },
   "devDependencies": {
     "@biomejs/biome": "^2.4.5",
+    "@commitlint/cli": "^20.5.0",
+    "@commitlint/config-conventional": "^20.5.0",
     "@nestjs/cli": "^11.0.0",
     "@nestjs/schematics": "^11.0.0",
     "@nestjs/testing": "^11.0.1",
@@ -42,6 +45,7 @@
     "@types/node": "^24.0.0",
     "@types/supertest": "^7.0.0",
     "concurrently": "^9.2.1",
+    "husky": "^9.1.7",
     "jest": "^30.0.0",
     "source-map-support": "^0.5.21",
     "supertest": "^7.0.0",