CHECKPOINT: Industry-standard 3-tier testing implemented

✅ MAJOR BREAKTHROUGH - Session 5 Success:
- Unit tests: 18/19 passing with mocked AI (<500MB RAM)
- Integration tests: Real AI models loading successfully
- Core features: Real embeddings, CRUD operations verified
- Architecture: All 11 augmentations, worker threads operational

📋 CRITICAL FINDINGS:
- Real AI models load and cache correctly
- 384D embeddings generate properly
- Core CRUD operations work with real transformers
- Memory management effective for production

⚠️ RELEASE BLOCKER IDENTIFIED:
- Search operations timeout in test environment
- Affects: search(), find(), clustering functionality
- Root cause: Likely worker communication during HNSW search
- Priority: MUST fix before 2.0.0 release

🎯 NEXT SESSION PRIORITIES:
1. Debug and fix search timeout issue
2. Verify search/find/clustering work in production
3. Final documentation cleanup
4. Release preparation

Confidence: 90% ready (pending search functionality verification)

tests/distributed-caching.test.ts

@@ -43,8 +43,8 @@ describe('Distributed Caching', () => {
   })
 
   afterEach(async () => {
-    await serviceA.clear()
-    await serviceB.clear()
+    await serviceA.clearAll({ force: true })
+    await serviceB.clearAll({ force: true })
     await cleanupWorkerPools()
   })
 
@@ -118,7 +118,7 @@ describe('Distributed Caching', () => {
       const results2 = await shortCacheService.search('short cache', 5)
       expect(results2.length).toBe(1)
 
-      await shortCacheService.clear()
+      await shortCacheService.clearAll({ force: true })
     })
 
     it('should provide cache statistics for monitoring', async () => {
@@ -210,7 +210,7 @@ describe('Distributed Caching', () => {
       const cacheStats = distributedService.getCacheStats()
       expect(cacheStats.search.enabled).toBe(true)
 
-      await distributedService.clear()
+      await distributedService.clearAll({ force: true })
     })
 
     it('should maintain performance with frequent external changes', async () => {