CHECKPOINT: Brainy 2.0 API refactor - pre-fixes state

Current state:
- Unified augmentation system to BrainyAugmentation interface
- Changed methods to specific noun/verb naming (addNoun, getNoun, etc)
- Made old methods private
- Combined getNouns into single unified method
- Neural API exists and is complete
- Triple Intelligence uses correct Brainy operators (not MongoDB)

Issues identified:
- Documentation incorrectly shows MongoDB operators (code is correct)
- Need to ensure all features are properly exposed
- Need to verify nothing was lost in simplification

This commit serves as a rollback point before applying fixes.

docs/MODEL_LOADING_QUICK_REFERENCE.md

@@ -0,0 +1,83 @@
+# 🤖 Model Loading Quick Reference
+
+## 🚀 Common Scenarios
+
+### ✅ Development (Zero Config)
+```typescript
+const brain = new BrainyData()
+await brain.init() // Downloads automatically
+```
+
+### 🐳 Docker Production
+```dockerfile
+RUN npm run download-models
+ENV BRAINY_ALLOW_REMOTE_MODELS=false
+```
+
+### ☁️ Serverless/Lambda
+```bash
+# Build step
+npm run download-models
+
+# Runtime
+export BRAINY_ALLOW_REMOTE_MODELS=false
+```
+
+### 🔒 Air-Gapped/Offline
+```bash
+# Connected machine
+npm run download-models
+tar -czf brainy-models.tar.gz ./models
+
+# Offline machine  
+tar -xzf brainy-models.tar.gz
+export BRAINY_ALLOW_REMOTE_MODELS=false
+```
+
+### 🌐 Browser/CDN
+```html
+<!-- Automatic - no setup needed -->
+<script type="module">
+  import { BrainyData } from 'brainy'
+  const brain = new BrainyData()
+  await brain.init() // Works in browser
+</script>
+```
+
+## 🚨 Troubleshooting
+
+| Error | Solution |
+|-------|----------|
+| "Failed to load embedding model" | `npm run download-models` |
+| "ENOENT: no such file" | Check `BRAINY_MODELS_PATH` |
+| "Network timeout" | Set `BRAINY_ALLOW_REMOTE_MODELS=false` |
+| "Permission denied" | `chmod 755 ./models` |
+| "Out of memory" | Increase container memory limit |
+
+## 🎯 Environment Variables
+
+| Variable | Values | Purpose |
+|----------|--------|---------|
+| `BRAINY_ALLOW_REMOTE_MODELS` | `true`/`false` | Allow/block downloads |
+| `BRAINY_MODELS_PATH` | `./models` | Model storage path |
+| `NODE_ENV` | `production` | Environment detection |
+
+## 📦 Model Info
+
+- **Model**: All-MiniLM-L6-v2 
+- **Dimensions**: 384 (fixed)
+- **Size**: ~80MB download, ~330MB uncompressed
+- **Location**: `./models/Xenova/all-MiniLM-L6-v2/`
+
+## ✅ Verification Commands
+
+```bash
+# Check models exist
+ls ./models/Xenova/all-MiniLM-L6-v2/onnx/model.onnx
+
+# Test offline mode
+BRAINY_ALLOW_REMOTE_MODELS=false npm test
+
+# Download fresh models
+rm -rf ./models && npm run download-models
+```