[Enhancement]: Add CometAPI usage docs

[TensorNull]

Version

VisualStudio Code extension

Suggestion

Version

• VisualStudio Code extension

Suggestion
Please add documentation for using CometAPI (an OpenAI-compatible provider) with GPT Pilot. The goal is to improve provider redundancy and cost flexibility for users who want alternatives while keeping the same UX.

Proposed docs outline

1. Overview: What is CometAPI and why it matters (OpenAI-compatible, portability)
2. Prerequisites: Obtain API key and model info
   • Get API Key: https://api.cometapi.com/console/token
   • Base URL: https://api.cometapi.com/v1/
   • Model List: https://api.cometapi.com/v1/models
3. Configuration
   • Where to set base URL and API key in GPT Pilot (env/settings)
   • Example configuration snippet (point OpenAI client base URL to CometAPI)
4. Usage
   • Selecting models (note: filter to chat-capable models)
   • Streaming vs non-streaming (if applicable)
5. Troubleshooting
   • Common errors (auth, model not found, rate limits)
   • How to verify connectivity (curl model list)

Additional context

• Website: https://www.cometapi.com/
• API Documentation: https://api.cometapi.com/doc
• Pricing: https://api.cometapi.com/pricing

Implementation Offer

• We’re happy to draft the doc page and submit a PR, including config examples and a short screencast. We can also provide a temporary test API key to validate the guide.