add database connection "hardcoded for testing" (add todo comment)

index.ts

@@ -31,6 +31,7 @@ export async function main() {
         mongoose.connection.once("open", () => {
             console.info("[Info - Database] Connected to MongoDB");
         })
+        // TODO: Fetch the MongoDB URI from the config file
         await mongoose.connect("mongodb://localhost:27017/crra-main", {});
     } catch (error) {
         console.error(`[Error - Database] Failed to connect to MongoDB: ${error}`);