fix: update all imports and references from BrainyData to Brainy

- Fixed imports in examples/tests/ to use correct Brainy import
- Fixed imports in tests/benchmarks/ to use correct paths
- Updated bin/brainy-interactive.js to use Brainy instead of BrainyData
- Corrected documentation references throughout codebase
- Removed duplicate imports in benchmark files
- All files now consistently use 'Brainy' class from dist/index.js

docs/guides/natural-language.md

@@ -21,9 +21,9 @@ The current NLP implementation supports:
 ## Basic Usage
 
 ```typescript
-import { BrainyData } from 'brainy'
+import { Brainy } from 'brainy'
 
-const brain = new BrainyData()
+const brain = new Brainy()
 await brain.init()
 
 // Simply ask in natural language