chore: bump langgraph to v1.0

pyproject.toml

@@ -9,7 +9,7 @@ readme = "README.md"
 license = { text = "MIT" }
 requires-python = ">=3.11,<4.0"
 dependencies = [
-    "langgraph>=0.6.6,<0.7.0",
+    "langgraph>=1.0.0",
     "langchain-openai>=0.1.22",
     "langchain-anthropic>=0.1.23",
     "langchain>=0.2.14",

src/react_agent/context.py

@@ -22,7 +22,7 @@ class Context:
     )
 
     model: Annotated[str, {"__template_metadata__": {"kind": "llm"}}] = field(
-        default="anthropic/claude-3-5-sonnet-20240620",
+        default="anthropic/claude-4-5",
         metadata={
             "description": "The name of the language model to use for the agent's main interactions. "
             "Should be in the form: provider/model-name."

src/react_agent/graph.py

@@ -42,7 +42,7 @@ async def call_model(
     )
 
     # Get the model's response
-    response = cast(
+    response = cast( # type: ignore[redundant-cast]
         AIMessage,
         await model.ainvoke(
             [{"role": "system", "content": system_message}, *state.messages]

src/react_agent/tools.py

@@ -8,7 +8,7 @@
 
 from typing import Any, Callable, List, Optional, cast
 
-from langchain_tavily import TavilySearch  # type: ignore[import-not-found]
+from langchain_tavily import TavilySearch
 from langgraph.runtime import get_runtime
 
 from react_agent.context import Context