Add initial IntelliJ project configuration files

## Introduced
- Configuration files for IntelliJ IDEA to manage project settings:
  - **.idea/.gitignore**: Specifies files and directories to be ignored by Git.
  - **.idea/codeStyles/codeStyleConfig.xml**: Contains the preferred code style configuration set to 'Default'.
  - **.idea/commitbot.iml**: Defines the module structure including source and test folders, and excludes target directories.
  - **.idea/copilot.data.migration.agent.xml**: Configuration for the migration state of the agent.
  - **.idea/copilot.data.migration.ask.xml**: Configuration for the migration state of the 'Ask' service.
  - **.idea/copilot.data.migration.ask2agent.xml**: Configuration for the migration state between 'Ask' and agent.
  - **.idea/copilot.data.migration.edit.xml**: Configuration for the migration state of the edit service.
  - **.idea/modules.xml**: Defines project modules including references to the main module file.
  - **.idea/vcs.xml**: Configures version control settings, specifying Git as the VCS for the project.

Author: MikeGarde