feat(crypto): implement hybrid approach with real-time DexScreener tools

- Add crypto_realtime.py with get_live_token_price and get_live_token_data tools
- Register real-time tools in registry.py (no dependencies required)
- Export tool factories in __init__.py
- Create LiveTokenPriceToolUI component for real-time price display
- Create LiveTokenDataToolUI component for comprehensive market data
- Register tool-ui components in new-chat page

Hybrid Architecture:
- RAG (search_knowledge_base): Historical context, trends from indexed data
- Real-time tools: Current prices, live market data via direct API calls
- AI agent decides which to use based on query intent

surfsense_web/package.json

@@ -4,7 +4,7 @@
 	"private": true,
 	"description": "SurfSense Frontend",
 	"scripts": {
-		"dev": "next dev --turbopack",
+		"dev": "next dev --turbopack -p 3999",
 		"dev:turbo": "next dev --turbopack",
 		"build": "next build",
 		"start": "next start",