feat: add UI build to build process

- Created separate build script to handle both CLI and UI building
- Added automatic UI dependency installation
- Copy built UI artifacts to dist directory

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/middleware/auth.ts

@@ -3,7 +3,7 @@ import { FastifyRequest, FastifyReply } from "fastify";
 export const apiKeyAuth =
   (config: any) =>
   (req: FastifyRequest, reply: FastifyReply, done: () => void) => {
-    if (["/", "/health"].includes(req.url)) {
+    if (["/", "/health"].includes(req.url) || req.url.startsWith("/ui")) {
       return done();
     }
     const apiKey = config.APIKEY;