Make Brotli compression background to prevent blocking server startup

- Start compression asynchronously after 1 second delay
- Server can start immediately while compression happens in background
- Fixes slow site loading due to synchronous compression of 500+ files

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

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

pkgs/utils/deploy.ts

@@ -102,8 +102,12 @@ export const deploy = {
       };
 
       if (g.deploy.content) {
+        // Start compression in background to avoid blocking server startup
+        setTimeout(() => {
+          console.log(`[DEBUG] Starting background Brotli compression...`);
           startBrCompress();
-        console.log(`[DEBUG] Compression started`);
+        }, 1000);
+        console.log(`[DEBUG] Compression scheduled for background`);
 
         if (exists(dir("public"))) {
           await removeAsync(dir("public"));