Add IBM watsonx AI provider in the list of providers to connect to IBM hosted LLMs

[PrasangAPrajapati]

Related GitHub Issue

Closes: #8087

Roo Code Task Context (Optional)

Description

• Added IBM watsonx AI provider in the list of providers in the Roo Code VS Code extension to connect to IBM watsonx-hosted LLMs.

Test Procedure

• You can start with the free trial: https://dataplatform.cloud.ibm.com/registration/stepone?context=wx
• Sign up with Google (Do not use RedHat) - If you already have an account, just use Log In
• Once you're logged in to the IBM Cloud, you'll be asked to add the address and the credit card information (Don't worry, you won't get charged)
• Go to the Resources list from the left sidebar menu
• Click on the Create resource button
• Go to the Category - AI/Machine Learning
• Click on watsonx.ai runtime
• Select the Region (Dallas) and Lite plan, which is free
• You can give the service name, and the resource group will be the default.
• Accept terms and conditions and hit create
• Now there is a button called Launch In -> Select IBM watsonx from the drop-down - it will create a watsonx instance
• Go down on the page and create a project by clicking on the + icon (it may create automatically)
• Go to Manage and click on the Services and integrations from the left menu bar (make sure the created watsonx.ai runtime is associated)
• Go back to the home page by clicking on the top left IBM watsonx
• Select your project from the drop-down shown in the Developer access area
• Click on the Create API key and save the API key (you won't be able to see that again)
• Note project ID and api key
• Use the project ID and api key in the Roo Code IBM watsonx provider

Pre-Submission Checklist

• Issue Linked: This PR is linked to an approved GitHub Issue (see "Related GitHub Issue" above).
• Scope: My changes are focused on the linked issue (one major feature/fix per PR).
• Self-Review: I have performed a thorough self-review of my code.
• Testing: New and/or updated tests have been added to cover my changes (if applicable).
• Documentation Impact: I have considered if my changes require documentation updates (see "Documentation Updates" section below).
• Contribution Guidelines: I have read and agree to the Contributor Guidelines.

Screenshots / Videos

Documentation Updates

• I am going to create a page on the Roo-Code website to add the IBM watsonx providers in the list of providers. It would be https://docs.roocode.com/providers/ibm-watsonx

Additional Notes

Get in Touch

• Let's use the GH PR only for communication.

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Important

Adds IBM watsonx as a new AI provider with full integration, including configuration, validation, UI support, and testing.

• Behavior:
  • Adds IBM watsonx as a new AI provider in provider-settings.ts and global-settings.ts.
  • Introduces WatsonxAIHandler in ibm-watsonx.ts for handling API interactions.
  • Supports both ibmCloud and cloudPak platforms with different authentication methods.
• Validation:
  • Updates validate.ts to include validation for IBM watsonx configurations.
  • Adds validation tests in validate.test.ts for IBM watsonx.
• UI:
  • Updates UI components in ApiOptions.tsx and providers/ibm-watsonx.tsx to support IBM watsonx configurations.
  • Adds localization strings for IBM watsonx in multiple language files.
• Testing:
  • Adds unit tests for WatsonxAIHandler in ibm-watsonx.spec.ts.
  • Updates webviewMessageHandler.spec.ts and ClineProvider.spec.ts to include IBM watsonx.

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