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

tests/benchmarks/quick-verify.js

@@ -4,14 +4,14 @@
  * Quick Verification Test - Verify real implementations work
  */
 
-import { BrainyData } from '../dist/index.js'
+import { Brainy } from '../dist/index.js'
 import { MemoryStorage } from '../dist/storage/adapters/memoryStorage.js'
 
 async function quickVerify() {
   console.log('🔍 Quick Verification Test\n')
   
   // Initialize
-  const brain = new BrainyData({
+  const brain = new Brainy({
     storage: new MemoryStorage()
   })