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/tests/test-without-embeddings.js

@@ -5,14 +5,14 @@
  * This validates core database operations without ONNX memory issues
  */
 
-import { BrainyData } from './dist/index.js'
+import { Brainy } from './dist/index.js'
 
 console.log('🧠 Testing Brainy Core (No Embeddings)')
 console.log('=' + '='.repeat(50))
 
 async function testCoreFeatures() {
   try {
-    const brain = new BrainyData({ 
+    const brain = new Brainy({ 
       storage: { forceMemoryStorage: true },
       verbose: false,
       // Disable embedding features for this test