chore: remove weather tooling and documentation

Author: brandonmcconnell

README.md

@@ -138,7 +138,7 @@ The main UI component is in [`src/app/page.tsx`](https://github.com/CopilotKit/c
 ### Backend (LangGraph Agent)
 The agent logic is in [`agent/agent.py`](https://github.com/CopilotKit/canvas-with-langgraph-python/blob/main/agent/agent.py). It features:
 - **State Management**: Extends `CopilotKitState` with canvas-specific fields
-- **Tool Integration**: Backend tools for weather, planning, and frontend tools for canvas operations
+- **Tool Integration**: Backend tools for planning, and frontend tools for canvas operations
 - **Strict Grounding**: Enforces data consistency by always using shared state as truth
 - **Loop Control**: Prevents infinite loops and redundant operations
 - **Planning System**: Can create and execute multi-step plans with status tracking

agent/agent.py

@@ -100,13 +100,6 @@ def summarize_items_for_prompt(state: AgentState) -> str:
         return "(unable to summarize items)"
 
 
-@tool
-def get_weather(location: str):
-    """
-    Get the weather for a given location.
-    """
-    return f"The weather for {location} is 70 degrees."
-
 @tool
 def set_plan(steps: List[str]):
     """
@@ -135,7 +128,6 @@ def complete_plan():
 #     return "Your tool response here."
 
 backend_tools = [
-    get_weather,
     set_plan,
     update_plan_progress,
     complete_plan,