feat: Use pydantic ai 0.2.0 (#48)

Author: Wh1isper

lightblue_ai/agent.py

@@ -96,7 +96,7 @@ async def run(
         async with self.agent.run_mcp_servers():
             result = await self.agent.run(user_prompt, message_history=message_history)
             if usage:
-                usage.incr(result.usage(), requests=1)
+                usage.incr(result.usage())
         return result
 
     @asynccontextmanager
@@ -116,7 +116,7 @@ async def iter(
         ):
             yield run
         if usage:
-            usage.incr(run.usage(), requests=1)
+            usage.incr(run.usage())
 
     async def yield_response_event(self, run: AgentRun) -> AsyncIterator[HandleResponseEvent | AgentStreamEvent]:
         """

pyproject.toml

@@ -29,7 +29,7 @@ dependencies = [
     "playwright>=1.51.0",
     "pluggy>=1.5.0",
     "pydantic>=2.11.1",
-    "pydantic-ai>=0.1.8",
+    "pydantic-ai>=0.2.0",
     "pydantic-settings>=2.8.1",
     "pymupdf4llm>=0.0.21",
     "python-dotenv>=1.1.0",