Update README

Co-Authored-By: Claude Sonnet 4.5 (1M context) <noreply@anthropic.com>

README.md

@@ -1,15 +1,14 @@
-# backend
+# AiWorker Backend
 
-To install dependencies:
+Backend service built with Bun 1.3.6
 
-```bash
-bun install
-```
+## Features
+- Bun.serve() native API
+- MariaDB with Drizzle ORM
+- Auto-migrations on startup
+- WebSocket support
+- MCP Server for agents
 
-To run:
+## CI/CD
+Builds automatically on push via Gitea Actions
 
-```bash
-bun run index.ts
-```
-
-This project was created using `bun init` in bun v1.3.5. [Bun](https://bun.com) is a fast all-in-one JavaScript runtime.