Added postgres DB, models. Updated services for ansync DB operations, etc

package.json

@@ -5,7 +5,10 @@
   "main": "index.js",
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1",
-    "dev": "tsx src/index.ts"
+    "dev": "tsx src/index.ts",
+    "db:up": "docker compose up -d",
+    "db:down": "docker compose down",
+    "db:migrate": "tsx scripts/migrate.ts"
   },
   "keywords": [],
   "author": "",
@@ -15,12 +18,14 @@
     "cors": "^2.8.6",
     "dotenv": "^17.4.2",
     "express": "^5.2.1",
+    "pg": "^8.21.0",
     "pino": "^10.3.1"
   },
   "devDependencies": {
     "@types/cors": "^2.8.19",
     "@types/express": "^5.0.6",
     "@types/node": "^25.8.0",
+    "@types/pg": "^8.20.0",
     "ts-node": "^10.9.2",
     "tsx": "^4.22.1",
     "typescript": "^6.0.3"