feat : add testing

package.json

@@ -65,12 +65,14 @@
     "jest": "^29.7.0",
     "prettier": "^3.2.5",
     "source-map-support": "^0.5.21",
+    "sqlite3": "^5.1.7",
     "supertest": "^6.3.4",
     "ts-jest": "^29.1.2",
     "ts-loader": "^9.5.1",
     "ts-node": "^10.9.2",
     "tsconfig-paths": "^4.2.0",
-    "typescript": "^5.3.3"
+    "typescript": "^5.3.3",
+    "typescript-eslint": "^8.18.2"
   },
   "jest": {
     "moduleFileExtensions": [
@@ -78,7 +80,10 @@
       "json",
       "ts"
     ],
-    "rootDir": "src",
+    "rootDir": "./",
+    "modulePaths": [
+      "<rootDir>"
+    ],
     "testRegex": ".*\\.spec\\.ts$",
     "transform": {
       "^.+\\.(t|j)s$": "ts-jest"