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

examples/api-server-example.ts

@@ -7,12 +7,12 @@
  * Zero-config philosophy: Just create and register the augmentation!
  */
 
-import { BrainyData } from '../src/index.js'
+import { Brainy } from '../src/index.js'
 import { APIServerAugmentation } from '../src/augmentations/apiServerAugmentation.js'
 
 async function main() {
   // 1. Create Brainy with zero config
-  const brain = new BrainyData()
+  const brain = new Brainy()
   await brain.init()
   
   // 2. Add some sample data