feat: implement comprehensive type safety system with BrainyTypes API

Major enhancements for type safety and developer experience:

- Add BrainyTypes static API for type management and AI-powered suggestions
- Implement strict type validation for all 31 NounType categories
- Remove dangerous generic add() method that bypassed type safety
- Add intelligent type inference with confidence scoring
- Provide helpful error messages with typo suggestions using Levenshtein distance
- Update all internal code, examples, and documentation to use typed methods
- Enhance CLI with new type management commands (types, suggest, validate)

Breaking changes:
- Remove deprecated add() method - use addNoun() with explicit type parameter
- All addNoun() calls now require explicit type as second parameter

This release significantly improves type safety across the entire system while
maintaining backward compatibility for properly typed method calls.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

docs/troubleshooting.md

@@ -159,7 +159,7 @@ const brain = new BrainyData({
 
 2. **Verify embedding generation**
    ```typescript
-   const id = await brain.add("test content")
+   const id = await brain.addNoun("test content", 'content')
    const item = await brain.get(id)
    console.log('Item:', item) // Should have metadata and vector
    ```
@@ -193,7 +193,7 @@ const brain = new BrainyData({
 3. **Check data quality**
    ```typescript
    // Ensure consistent, descriptive content
-   await brain.add("Domestic cat - small carnivorous mammal", {
+   await brain.addNoun("Domestic cat - small carnivorous mammal", 'content', {
      category: "animals",
      subcategory: "pets"
    })
@@ -250,7 +250,7 @@ const brain = new BrainyData({
    // Process in batches instead of loading all at once
    for (let i = 0; i < data.length; i += 100) {
      const batch = data.slice(i, i + 100)
-     await Promise.all(batch.map(item => brain.add(item)))
+     await Promise.all(batch.map(item => brain.addNoun(item, 'content')))
    }
    ```
 
@@ -366,7 +366,7 @@ try {
   const brain = new BrainyData()
   await brain.init()
   
-  const id = await brain.add("health check")
+  const id = await brain.addNoun("health check", 'content')
   const results = await brain.search("health")
   
   console.log('✅ Brainy is working correctly')