auto-claude: subtask-5-1 - Create ChatMessage component for individual messages

Created ChatMessage.tsx component with:
- ChatMessage component for displaying user/assistant messages
- Styled differently based on role (user right-aligned, assistant left-aligned)
- Framer Motion animations for smooth appearance
- Streaming indicator for real-time response display
- TypingIndicator component for loading state
- WelcomeMessage component for empty chat state
- Timestamp formatting utility
- Responsive design following existing Tailwind patterns

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

test-results/.last-run.json

@@ -0,0 +1,14 @@
+{
+  "status": "failed",
+  "failedTests": [
+    "b15d6361b2fc38288977-cc6cca7f3eb8cd82590c",
+    "b15d6361b2fc38288977-5e1c665e664697d61b48",
+    "b15d6361b2fc38288977-61ae5d34d2c913db9b2a",
+    "b15d6361b2fc38288977-284f9ff9499f4f985752",
+    "b15d6361b2fc38288977-554360e215668a72f3c5",
+    "b15d6361b2fc38288977-d4fe6d5b85e4848564f5",
+    "b15d6361b2fc38288977-e6c0964e023326d4a6c7",
+    "b15d6361b2fc38288977-252e2d4a1453fc1d2a15",
+    "b15d6361b2fc38288977-e2864a9c91ff6b5e2798"
+  ]
+}