Python:DevUI Fixes (#1035)

* fix event reset on thread change, enable multiline input, enable pasting of files and screenshots

* UI updates and improved remove discovery

* ui and other fixes

---------

Co-authored-by: Evan Mattson <35585003+moonbox3@users.noreply.github.com>

python/packages/devui/samples/foundry_agent/__init__.py

@@ -0,0 +1,7 @@
+# Copyright (c) Microsoft. All rights reserved.
+
+"""Weather agent sample for DevUI testing."""
+
+from .agent import agent
+
+__all__ = ["agent"]

python/packages/devui/samples/foundry_agent/agent.py

@@ -0,0 +1,81 @@
+# Copyright (c) Microsoft. All rights reserved.
+"""Foundry-based weather agent for Agent Framework Debug UI.
+
+This agent uses Azure AI Foundry with Azure CLI authentication.
+Make sure to run 'az login' before starting devui.
+"""
+
+import os
+from typing import Annotated
+
+from agent_framework.azure import AzureAIAgentClient
+from azure.identity.aio import AzureCliCredential
+
+
+def get_weather(
+    location: Annotated[str, "The location to get the weather for."],
+) -> str:
+    """Get the weather for a given location."""
+    conditions = ["sunny", "cloudy", "rainy", "stormy"]
+    temperature = 22
+    return f"The weather in {location} is {conditions[0]} with a high of {temperature}°C."
+
+
+def get_forecast(
+    location: Annotated[str, "The location to get the forecast for."],
+    days: Annotated[int, "Number of days for forecast"] = 3,
+) -> str:
+    """Get weather forecast for multiple days."""
+    conditions = ["sunny", "cloudy", "rainy", "stormy"]
+    forecast = []
+
+    for day in range(1, days + 1):
+        condition = conditions[day % len(conditions)]
+        temp = 18 + day
+        forecast.append(f"Day {day}: {condition}, {temp}°C")
+
+    return f"Weather forecast for {location}:\n" + "\n".join(forecast)
+
+
+credential = AzureCliCredential()
+# Cleanup will happen when Python process exits
+client = AzureAIAgentClient(
+    async_credential=credential,
+    project_endpoint=os.environ.get("AZURE_AI_PROJECT_ENDPOINT"),
+    model_deployment_name=os.environ.get("FOUNDRY_MODEL_DEPLOYMENT_NAME"),
+)
+
+# Agent instance following Agent Framework conventions
+agent = client.create_agent(
+    name="FoundryWeatherAgent",
+    description="A helpful agent using Azure AI Foundry that provides weather information",
+    instructions="""
+    You are a weather assistant using Azure AI Foundry models. You can provide
+    current weather information and forecasts for any location. Always be helpful
+    and provide detailed weather information when asked.
+    """,
+    tools=[get_weather, get_forecast],
+)
+
+
+def main():
+    """Launch the Foundry weather agent in DevUI."""
+    import logging
+
+    from agent_framework.devui import serve
+
+    # Setup logging
+    logging.basicConfig(level=logging.INFO, format="%(message)s")
+    logger = logging.getLogger(__name__)
+
+    logger.info("Starting Foundry Weather Agent")
+    logger.info("Available at: http://localhost:8090")
+    logger.info("Entity ID: agent_FoundryWeatherAgent")
+    logger.info("Note: Make sure 'az login' has been run for authentication")
+
+    # Launch server with the agent
+    serve(entities=[agent], port=8090, auto_open=True)
+
+
+if __name__ == "__main__":
+    main()