feat: add universal adapters for browser compatibility

- Create universal adapters for cross-platform support (browser/Node/serverless)
- Replace Node.js-specific imports with universal implementations
- Add OPFS support for browser persistent storage
- Maintain same BrainyData interface across all environments
- Enable real Brainy usage in browser console UI
- Keep package size optimized (no bloat)

Universal adapters in /src/universal/:
- uuid.ts: Cross-platform UUID generation
- crypto.ts: Browser/Node crypto operations
- fs.ts: OPFS/FileSystem/Memory storage adapter
- path.ts: Universal path operations
- events.ts: EventEmitter compatibility layer

This enables 'write once, run anywhere' for Brainy while maintaining
the exact same API. No breaking changes to existing code.

tsconfig.json

@@ -26,6 +26,9 @@
   "exclude": [
     "node_modules",
     "dist",
-    "**/*.test.ts"
+    "**/*.test.ts",
+    "src/cortex/**/*",
+    "src/augmentations/cortexSense.ts",
+    "src/augmentations/llmAugmentations.ts"
   ]
 }