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/CORE_API_PATTERNS.md

@@ -34,9 +34,9 @@ await brain.delete(id)                        // Unified deletion
 
 ```typescript
 // DON'T DO THIS - Old API patterns
-import { BrainyData } from 'old-brainy'  // ❌ Wrong import
+import { Brainy } from 'old-brainy'  // ❌ Wrong import
 
-const brain = new BrainyData({           // ❌ Old class name
+const brain = new Brainy({           // ❌ Old class name
   complexConfig: true
 })