chore: add eslint and prettier setup for center and guild

Fabric.Backend.Center/package.json

@@ -6,7 +6,10 @@
   "scripts": {
     "build": "tsc -p tsconfig.build.json",
     "start": "node dist/main.js",
-    "start:dev": "ts-node src/main.ts"
+    "start:dev": "ts-node src/main.ts",
+    "lint": "eslint 'src/**/*.ts'",
+    "lint:fix": "eslint 'src/**/*.ts' --fix",
+    "format": "prettier --write 'src/**/*.ts'"
   },
   "dependencies": {
     "@nestjs/common": "^10.4.8",
@@ -19,7 +22,13 @@
     "typeorm": "^0.3.29"
   },
   "devDependencies": {
+    "@eslint/js": "^10.0.1",
     "@types/node": "^22.10.1",
+    "@typescript-eslint/eslint-plugin": "^8.59.3",
+    "@typescript-eslint/parser": "^8.59.3",
+    "eslint": "^10.3.0",
+    "eslint-config-prettier": "^10.1.8",
+    "prettier": "^3.8.3",
     "ts-node": "^10.9.2",
     "typescript": "^5.7.2"
   }