Add directory change instruction after dbt init (Fixes #9041)

[kalluripradeep]

What?

Adds a line to the dbt init output instructing users to change directories to their newly created project before running dbt debug.

Why?

Users were confused when dbt debug failed after running dbt init because they weren't in the project directory. This simple instruction helps prevent that confusion.

Fixes #9041

Changes

• Modified ProjectCreated event message in core/dbt/events/types.py
• Added: p.s. change directories to "{project_name}" to use this project

Example Output

After this change, when running dbt init, users will see:

Your new dbt project "my_project" was created!
For more information on how to configure the profiles.yml file,
please consult the dbt documentation here:
https://docs.getdbt.com/docs/configure-your-profile
One more thing:
Need help? Don't hesitate to reach out to us via GitHub issues or on Slack:
https://community.getdbt.com/
Happy modeling!
p.s. change directories to "my_project" to use this project

Testing

• Tested locally by running dbt init and verifying the new message appears
• Confirmed message format matches the acceptance criteria from the issue

Checklist

• I have read the contributing guide
• I have signed the CLA
• I have added a changelog entry
• This PR includes only the dbt init instruction change