fix(amazonq): Automatic start workspace indexing for new project open

[leigaol]

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)

Description

In the current release, the workspace indexing only starts when user input workspace in the chat window, which will fail the first query with workspace for customers because the service is not ready customer will still see responses that is not context aware. This is a bug and in VS Code Amazon Q we do not have such bug, the indexing starts when a new project is opened.

The solution is to start the workspace indexing when user opens a new project with a small delay and conditions. We are aware of the native intelliJ indexing and other possible CPU heavy computation when JetBrains loads a new project, so we added conditions to wait until the CPU usage is low enough to do workspace indexing without slowing down the device.

Checklist

• My code follows the code style of this project
• I have added tests to cover my changes
• A short description of the change has been added to the CHANGELOG if the change is customer-facing in the IDE.
• I have added metrics for my changes (if required) ---> Indexing time is already in the metrics.

License

I confirm that my contribution is made under the terms of the Apache 2.0 license.

[rli]

@workspace needs to be escaped because there is a github user of the same name