🪙 fix: Deepseek Pricing & Titling

[danny-avila]

Summary

I updated the request payload to include context for title generation and revised the Deepseek reasoner pricing to align with usage costs.

• Added context: 'title' to the instructions payload in OpenAIClient.js to prevent reasoning tokens from appending to the final response
• Conditioned the check for reasoning tokens so it skips when context is 'title'
• Changed the completion rate for deepseek-reasoner from 0.55 to 2.19 to reflect current costs

Change Type

• Bug fix (non-breaking change which fixes an issue)

Testing

I tested by generating titles and verifying that reasoning tokens were excluded. I also checked the updated Deepseek rates in my local environment to ensure the new pricing was applied correctly.

Checklist

• My code adheres to this project's style guidelines
• I have performed a self-review of my own code
• I have made pertinent documentation changes
• My changes do not introduce new warnings
• I have written tests demonstrating that my changes are effective or that my feature works
• Local unit tests pass with my changes