chore: import upstream snapshot with attribution

cypress/e2e/command/main.py

@@ -0,0 +1,39 @@
+import chainlit as cl
+
+commands = [
+    {"id": "Picture", "icon": "image", "description": "Use DALL-E"},
+    {"id": "Search", "icon": "globe", "description": "Find on the web", "button": True},
+    {
+        "id": "Canvas",
+        "icon": "pen-line",
+        "description": "Collaborate on writing and code",
+    },
+    {
+        "id": "Sticky",
+        "icon": "pin",
+        "description": "Persistent tool stays selected",
+        "persistent": True,
+    },
+    {
+        "id": "StickyButton",
+        "icon": "bookmark",
+        "description": "Persistent button tool",
+        "button": True,
+        "persistent": True,
+    },
+]
+
+
+@cl.on_chat_start
+async def start():
+    await cl.context.emitter.set_commands(commands)
+
+
+@cl.on_message
+async def message(msg: cl.Message):
+    # Clear all commands after choosing Picture to test UI behavior with zero commands
+    # This simulates a scenario where certain commands might change the available tool set
+    if msg.command == "Picture":
+        await cl.context.emitter.set_commands([])
+
+    await cl.Message(content=f"Command: {msg.command}").send()