docs: add npm badges and update title in README

Author: ciro-maciel

README.md

@@ -1,4 +1,9 @@
-# @riligar/agents-sdk
+# RiLiGar Agents SDK
+
+![NPM Version](https://img.shields.io/npm/v/%40riligar%2Fagents-sdk)
+![NPM License](https://img.shields.io/npm/l/%40riligar%2Fagents-sdk)
+![GitHub Release Date](https://img.shields.io/github/release-date/riligar/agents-sdk)
+![NPM Downloads](https://img.shields.io/npm/dw/%40riligar%2Fagents-sdk)
 
 RiLiGar Agents SDK - JavaScript framework for building intelligent AI agents with LLM support via OpenRouter, custom tools, and MCP integration.