📊 Add Example Traces Data for Gallery

✅ Problem solved:
• Added algorithm-generated.jsonl (126 examples)
• Added hand-crafted.jsonl (58 examples)
• Total 184 example traces for Gallery display

🎯 Root cause of 'No examples found':
• Backend API expected data files in datasets/example_traces/
• Files were missing from HF Spaces environment
• Gallery page couldn't load any example data

⚡ Fixes applied:
• Copied example data from main project to HF repo
• Modified .gitignore to allow example_traces/ directory
• Maintained proper JSON format and content structure

🚀 Expected results:
• Gallery 'Who_and_When' tab should now display merged data
• 184 example traces available for import/analysis
• Proper filtering by agent and other metadata

.gitignore

@@ -3,7 +3,11 @@ __pycache__/
 *.class
 logs/
 *.log
-datasets/
+datasets/db/
+datasets/knowledge_graphs/
+datasets/test_results/
+# Allow example_traces data for Gallery
+!datasets/example_traces/
 db/
 cache/
 evaluation_results/