## 1. Fix search result struct

- [x] 1.1 Replace nested `Document` struct with flat fields (`Title`, `DocType`, `Tags`) matching engine JSON keys
- [x] 1.2 Add `ChunkMetadata map[string]interface{}` field to capture `chunk_metadata`

## 2. Fix display logic

- [x] 2.1 Update title/type/tags references in the display loop to use the new flat fields
- [x] 2.2 Extract `page` from `ChunkMetadata` map (replacing top-level `Page` field)
- [x] 2.3 Extract `section_header` from `ChunkMetadata` map (replacing top-level `Section` field)

## 3. Verify

- [x] 3.1 Build the client and verify it compiles cleanly