chore: import upstream snapshot with attribution

showcase/integrations/ms-agent-python/qa/gen-ui-tool-based.md

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+# QA: Tool-Based Generative UI — MS Agent Framework (Python)
+
+## Prerequisites
+
+- Demo is deployed and accessible
+- Agent backend is healthy (check /api/health)
+
+## Test Steps
+
+### 1. Basic Functionality
+
+- [ ] Navigate to the gen-ui-tool-based demo page
+- [ ] Verify the CopilotSidebar opens by default with title "Haiku Generator"
+- [ ] Verify a placeholder haiku card is displayed on the main area
+- [ ] Send a basic message via the sidebar
+- [ ] Verify the agent responds
+
+### 2. Feature-Specific Checks
+
+#### Suggestions
+
+- [ ] Verify "Nature Haiku" suggestion button is visible
+- [ ] Verify "Ocean Haiku" suggestion button is visible
+- [ ] Verify "Spring Haiku" suggestion button is visible
+
+#### Haiku Generation (useFrontendTool)
+
+- [ ] Click the "Nature Haiku" suggestion or type "Write me a haiku about nature"
+- [ ] Verify a HaikuCard renders (`data-testid="haiku-card"`) with:
+  - [ ] Three Japanese text lines (`data-testid="haiku-japanese-line"`)
+  - [ ] Three English translation lines (`data-testid="haiku-english-line"`)
+  - [ ] A background gradient style applied to the card
+- [ ] Verify the Japanese text contains actual Japanese characters (not Latin)
+- [ ] Verify the English lines are a readable English translation
+
+#### Image Display
+
+- [ ] After haiku generation, verify an image renders (`data-testid="haiku-image"`) if the agent provides an image_name
+- [ ] Verify the image src points to /images/ with a valid filename from the predefined list
+
+#### Multiple Haikus
+
+- [ ] Generate a second haiku (e.g. "Ocean Haiku")
+- [ ] Verify the new haiku card appears at the top
+- [ ] Verify the previous haiku card is still visible below
+- [ ] Verify the initial placeholder haiku is removed
+
+### 3. Error Handling
+
+- [ ] Send an empty message (should be handled gracefully)
+- [ ] Verify no console errors during normal usage
+
+## Expected Results
+
+- Sidebar loads within 3 seconds
+- Agent responds and generates haiku within 10 seconds
+- Haiku cards display with Japanese and English text
+- Generated haikus stack with newest on top
+- No UI errors or broken layouts