fix: change connect db error handling

packages/models/index.js

@@ -16,7 +16,6 @@ export default async function connectDB(uri) {
     return db.connection.getClient()
   } catch (err) {
     console.error(err)
-    process.exit(1)
-    return null
+    throw new Error('Failed to connect to MongoDB')
   }
 }

server/src/index.js

@@ -17,7 +17,12 @@ import expiryRemovalScheduler from './containers/expiryChecker.js'
 import { createTestUser } from './utils/auth.js'
 
 async function main() {
+  try {
     await connectDB(config.db)
+  } catch (err) {
+    console.error(err)
+    process.exit(1)
+  }
 
   await createTestUser()