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>

src/storage/adapters/opfsStorage.ts

@@ -666,7 +666,7 @@ export class OPFSStorage extends BaseStorage {
   /**
    * Save verb metadata to storage
    */
-  public async saveVerbMetadata(id: string, metadata: any): Promise<void> {
+  protected async saveVerbMetadata_internal(id: string, metadata: any): Promise<void> {
     await this.ensureInitialized()
 
     const fileName = `${id}.json`
@@ -703,7 +703,7 @@ export class OPFSStorage extends BaseStorage {
   /**
    * Save noun metadata to storage
    */
-  public async saveNounMetadata(id: string, metadata: any): Promise<void> {
+  protected async saveNounMetadata_internal(id: string, metadata: any): Promise<void> {
     await this.ensureInitialized()
 
     const fileName = `${id}.json`