[feat] switched from mysql to postgresql

package.json

@@ -19,13 +19,14 @@
     "chart.js": "^4.5.1",
     "dotenv": "^17.2.4",
     "drizzle-orm": "^1.0.0-beta.15-859cf75",
-    "mysql2": "^3.16.3",
+    "pg": "^8.20.0",
     "sass": "^1.97.3",
     "typesense": "^3.0.1"
   },
   "devDependencies": {
     "@types/bootstrap": "^5.2.10",
     "@types/node": "^25.2.1",
+    "@types/pg": "^8.18.0",
     "drizzle-kit": "^1.0.0-beta.15-859cf75",
     "typescript": "^5.9.3"
   }