- Implement full Responses API support for Azure using OpenAI SDK's AzureOpenAI client
- Add api parameter to Bedrock, Gemini, Anthropic with clear NotImplementedError messages
- Store api attribute on all providers for runtime inspection
- Add 37+ Azure Responses API tests (init, params, tools, structured output, auto-chaining, ZDR)
- Add 12 error handling tests for Bedrock, Gemini, Anthropic providers
Closes#4957
Co-Authored-By: João <joao@crewai.com>