Unable to start the lesson where I left off

### Describe the bug

I completed 35% of 'Build a database of Video Game Characters' yesterday. And today when I tried to start the lesson, I am unable to login to psql with the command ```psql --username=freecodecamp --dbname=postgres```.

Here's what I get after I run the command:

`
camper: /project$ psql --username=freecodecamp --dbname=postgres
psql: error: could not connect to server: Connection refused
Is the server running locally and accepting
connections on Unix domain socket "/var/run/postgresql/.s.PGSQL.5432"?
`

### To Reproduce

1. Start the lesson for the first time.
2. Quit it.
3. Go to Codespaces page in Github and start it.

### Expected behavior

Should connect to psql normally.

### Screenshots

### Desktop OS

Windows 10

### Desktop Browser

Chrome

### Desktop Browser Version

_No response_

### Mobile Device

_No response_

### Mobile OS

_No response_

### Mobile Browser

_No response_

### Mobile Browser Version

_No response_

### Additional context

_No response_

Start by reproducing the lesson resume flow in GitHub Codespaces: quit the lesson, restart the Codespace, and run `psql --username=freecodecamp --dbname=postgres`. Trace why the local PostgreSQL server is not accepting connections after restart; done means the command connects normally when resuming the lesson.

Written by the indexing model from the issue text.