docs: update README with all supported integrations

Add missing integrations (Cohere, Mistral, OpenAI Agents, AutoGen,
CrewAI, Strands) and update the OpenAI entry to point to the new
integrations module instead of the legacy oai.py shim.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: Nova (SFK)

README.md

@@ -52,18 +52,24 @@ BRAINTRUST_API_KEY=<YOUR_API_KEY> braintrust eval tutorial_eval.py
 
 | Integration | Auto-instrumented | Min version |
 | --- | --- | --- |
-| [OpenAI](py/src/braintrust/oai.py) | Yes | `openai>=1.71` |
+| [OpenAI](py/src/braintrust/integrations/openai/) | Yes | `openai>=1.71.0` |
 | [Anthropic](py/src/braintrust/integrations/anthropic/) | Yes | `anthropic>=0.48.0` |
+| [Cohere](py/src/braintrust/integrations/cohere/) | Yes | `cohere>=5.0.0` |
+| [Mistral](py/src/braintrust/integrations/mistral/) | Yes | `mistralai>=1.12.4` |
 | [LiteLLM](py/src/braintrust/integrations/litellm/) | Yes | `litellm>=1.74.0` |
-| [Pydantic AI](py/src/braintrust/integrations/pydantic_ai/) | Yes | `pydantic_ai>=1.10.0` |
+| [OpenRouter](py/src/braintrust/integrations/openrouter/) | Yes | `openrouter>=0.6.0` |
 | [Google GenAI](py/src/braintrust/integrations/google_genai/) | Yes | `google-genai>=1.30.0` |
 | [Google ADK](py/src/braintrust/integrations/adk/) | Yes | `google-adk>=1.14.1` |
+| [Pydantic AI](py/src/braintrust/integrations/pydantic_ai/) | Yes | `pydantic_ai>=1.10.0` |
 | [LangChain](py/src/braintrust/integrations/langchain/) | Yes | `langchain-core>=0.3.28` |
-| [OpenRouter](py/src/braintrust/integrations/openrouter/) | Yes | `openrouter>=0.6.0` |
+| [DSPy](py/src/braintrust/integrations/dspy/) | Yes | `dspy>=2.6.0` |
+| [OpenAI Agents](py/src/braintrust/integrations/openai_agents/) | Yes | `openai-agents>=0.0.19` |
+| [Claude Agent SDK](py/src/braintrust/integrations/claude_agent_sdk/) | Yes | `claude_agent_sdk>=0.1.10` |
+| [AutoGen](py/src/braintrust/integrations/autogen/) | Yes | `autogen-agentchat>=0.7.0` |
+| [CrewAI](py/src/braintrust/integrations/crewai/) | Yes | `crewai>=1.13.0` |
+| [Strands](py/src/braintrust/integrations/strands/) | Yes | `strands-agents>=1.20.0` |
 | [Agno](py/src/braintrust/integrations/agno/) | Yes | `agno>=2.1.0` |
 | [AgentScope](py/src/braintrust/integrations/agentscope/) | Yes | `agentscope>=1.0.0` |
-| [Claude Agent SDK](py/src/braintrust/integrations/claude_agent_sdk/) | Yes | `claude_agent_sdk>=0.1.10` |
-| [DSPy](py/src/braintrust/integrations/dspy/) | Yes | `dspy>=2.6.0` |
 | [pytest plugin](py/src/braintrust/wrappers/pytest_plugin/README.md) | No | `pytest>=8` |
 
 ## Documentation