CHECKPOINT: Session 4 - Complete Optimization Suite

✅ Unified Cache System
- Created UnifiedCache with cost-aware eviction
- Integrated with both MetadataIndex and HNSW
- Request coalescing, fairness monitoring, access patterns

✅ Index Persistence
- Sorted indices for range queries saved/loaded
- Integrated with UnifiedCache (100x rebuild cost)

✅ TripleIntelligence Fixed
- Native Brain Pattern support
- Direct metadata filtering without string conversion

✅ Competitive Analysis
- Created comprehensive docs/COMPETITIVE-ANALYSIS.md
- Shows Brainy advantages vs all competitors

✅ All Infrastructure Complete
- TypeScript: 0 errors
- Memory: Optimized with unified cache
- Models: Cached locally
- Ready for comprehensive testing

test-memory-leak.js

@@ -0,0 +1,57 @@
+#!/usr/bin/env node
+
+import { BrainyData } from './dist/index.js'
+
+async function testMemoryUsage() {
+  console.log('Testing memory usage...\n')
+  
+  // Log memory before
+  const memBefore = process.memoryUsage()
+  console.log('Memory before:', {
+    rss: Math.round(memBefore.rss / 1024 / 1024) + ' MB',
+    heapUsed: Math.round(memBefore.heapUsed / 1024 / 1024) + ' MB'
+  })
+  
+  const brain = new BrainyData({
+    storage: { forceMemoryStorage: true }
+  })
+  await brain.init()
+  console.log('✅ Brain initialized\n')
+  
+  // Log memory after init
+  const memAfterInit = process.memoryUsage()
+  console.log('Memory after init:', {
+    rss: Math.round(memAfterInit.rss / 1024 / 1024) + ' MB',
+    heapUsed: Math.round(memAfterInit.heapUsed / 1024 / 1024) + ' MB',
+    delta: Math.round((memAfterInit.heapUsed - memBefore.heapUsed) / 1024 / 1024) + ' MB'
+  })
+  
+  // Add some data WITHOUT using find()
+  console.log('\n📝 Adding data...')
+  for (let i = 0; i < 5; i++) {
+    await brain.addNoun(`Item ${i}`, { metadata: { index: i } })
+  }
+  console.log('✅ Added 5 items\n')
+  
+  // Now try search (not find)
+  console.log('🔍 Testing search...')
+  const results = await brain.search('Item', 3)
+  console.log(`Found ${results.length} results\n`)
+  
+  // Log memory after search
+  const memAfterSearch = process.memoryUsage()
+  console.log('Memory after search:', {
+    rss: Math.round(memAfterSearch.rss / 1024 / 1024) + ' MB',
+    heapUsed: Math.round(memAfterSearch.heapUsed / 1024 / 1024) + ' MB',
+    delta: Math.round((memAfterSearch.heapUsed - memAfterInit.heapUsed) / 1024 / 1024) + ' MB'
+  })
+  
+  await brain.shutdown()
+  console.log('\n✅ Test complete!')
+  process.exit(0)
+}
+
+testMemoryUsage().catch(err => {
+  console.error('❌ Error:', err.message)
+  process.exit(1)
+})