fix(pkg-py): tool.annotations.extra not extras

Author: gadenbuie

pkg-py/src/shinychat/_chat_normalize_chatlas.py

@@ -291,7 +291,7 @@ def tool_result_contents(x: "ContentToolResult") -> Tagifiable:
     icon = None
     if tool and tool.annotations:
         tool_title = tool.annotations.get("title")
-        icon = tool.annotations.get("extras", {}).get("icon")
+        icon = tool.annotations.get("extra", {}).get("icon")
         icon = icon or tool.annotations.get("icon")
 
     # Icon strings and HTML display never get escaped

pkg-py/tests/playwright/tools/basic/app.py

@@ -41,6 +41,9 @@ def list_files_impl():
 annotations: ToolAnnotations = {}
 if TOOL_OPTS["with_title"]:
     annotations["title"] = "List Files"
+    annotations["extra"] = {
+        "icon": faicons.icon_svg("folder"),
+    }
 
 # Define the tool function based on configuration
 if TOOL_OPTS["async"]: