Clean up docs

docs/clients/client.mdx

@@ -176,7 +176,7 @@ async with client:
     
     # Execute a tool
     result = await client.call_tool("multiply", {"a": 5, "b": 3})
-    print(result[0].text)  # "15"
+    print(result.data)  # 15
 ```
 
 See [Tools](/clients/tools) for detailed documentation.

docs/patterns/testing.mdx

@@ -22,7 +22,7 @@ from fastmcp import FastMCP, Client
 def mcp_server():
     server = FastMCP("TestServer")
     
-@server.tool
+    @server.tool
     def greet(name: str) -> str:
         return f"Hello, {name}!"
         
@@ -32,7 +32,7 @@ async def test_tool_functionality(mcp_server):
     # Pass the server directly to the Client constructor
     async with Client(mcp_server) as client:
         result = await client.call_tool("greet", {"name": "World"})
-        assert result[0].text == "Hello, World!"
+        assert result.data == "Hello, World!"
 ```
 
 This pattern creates a direct connection between the client and server, allowing you to test your server's functionality efficiently.

docs/servers/composition.mdx

@@ -180,7 +180,7 @@ async def test_dynamic_mount():
     
     async with Client(main_mcp) as client:
         result = await client.call_tool("dynamic_added_later")
-        print("Result:", result[0].text)
+        print("Result:", result.data)
         # Shows: "Tool Added Dynamically!"
 
 if __name__ == "__main__":

docs/tutorials/rest-api.mdx

@@ -114,7 +114,7 @@ async def main():
         # Call one of the generated tools
         print("\n\nCalling tool 'get_user_by_id'...")
         user = await client.call_tool("get_user_by_id", {"id": 1})
-        print(f"Result:\n{user[0].text}")
+        print(f"Result:\n{user.data}")
 
 if __name__ == "__main__":
     asyncio.run(main())