Azure GPT 5 compatabile temprature settings updated for Browser Engine

[RaghavPrabhu]

Note

Removes the explicit temperature parameter from chat completion requests in superagentx/browser_engine.py.

• LLM Integration:
  • Updates ChatCompletionParams initialization in superagentx/browser_engine.py to omit temperature, relying on default behavior while keeping response_format as JSON.

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