Fix shebang line position in main.js

Move shebang above license comment so it is on line 1, fixing SyntaxError on startup.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: jeffdyer

packages/api/src/main.js

@@ -1,5 +1,5 @@
-// SPDX-License-Identifier: MIT
 #!/usr/bin/env node
+// SPDX-License-Identifier: MIT
 
 import { createApp } from "./app.js";