Adds Pydantic MCP client integration

It looks and acts like all the other client integrations, but for
PydanticAI. The only real difference is how PydanticAI handles tools and
tool calling.

Author: mnoble

packages/mcp/pyproject.toml

@@ -38,6 +38,9 @@ crewai = [
     "crewai>=0.86.0",
     "nest-asyncio>=1.6.0",
 ]
+pydantic-ai = [
+    "pydantic-ai>=0.2.0",
+]
 test = [
     "pytest>=8.4.1",
     "pytest-asyncio>=1.1.0",
@@ -49,6 +52,7 @@ test = [
     "langchain>=1.0.5",
     "langchain-openai>=1.0.2",
     "crewai>=0.86.0",
+    "pydantic-ai>=0.2.0",
 ]
 
 [project.urls]

packages/mcp/src/keycardai/mcp/client/integrations/__init__.py

@@ -39,3 +39,10 @@
 except ImportError:
     pass
 
+# Try to import Pydantic AI integration
+try:
+    from . import pydantic_agents  # noqa: F401
+    __all__.extend(["pydantic_agents"])
+except ImportError:
+    pass
+