fix: Display work/author metadata and improve section titles

Backend fix:
- Remove return_properties from hierarchical chunk query
- Weaviate returns nested objects (work, document) when return_properties is not specified
- This allows chunks to have work.author and work.title available

Frontend improvements:
- Truncate long section titles to 80 chars with ellipsis
- Hide section_path if identical to title (avoid duplication)
- Work and author badges should now display correctly in chunk metadata

generations/library_rag/flask_app.py

@@ -442,15 +442,12 @@ def hierarchical_search(
                     filters = filters & work_filter_obj
 
                 # Search chunks in this section
+                # Note: Don't specify return_properties to get nested objects (work, document)
                 chunks_result = chunk_collection.query.near_text(
                     query=query,
                     limit=limit,
                     filters=filters,
                     return_metadata=wvq.MetadataQuery(distance=True),
-                    return_properties=[
-                        "text", "sectionPath", "sectionLevel", "chapterTitle",
-                        "canonicalReference", "unitType", "keywords", "orderIndex", "language"
-                    ],
                 )
 
                 # Add chunks to section