{"blocks": [{"key": "d36f9a19", "text": "Question", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "89eea942", "text": "Design a product catalog service for an e-commerce platform: define high-level API endpoints (CRUD, search, bulk import), relational schema (including a self-join to model category hierarchies), and discuss scalability, caching, and consistency.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}], "entityMap": {}}