🤖 fix: honor MUX_SERVER_AUTH_TOKEN environment variable

Change-Id: I0c52409fe13da349fcd97962b7c39427addc5da2
Signed-off-by: Test <test@example.com>

Author: Test

src/cli/server.ts

@@ -30,7 +30,8 @@ program
 const options = program.opts();
 const HOST = options.host as string;
 const PORT = Number.parseInt(String(options.port), 10);
-const AUTH_TOKEN = ((options.authToken as string | undefined)?.trim() ?? "") || undefined;
+const rawAuthToken = (options.authToken as string | undefined) ?? process.env.MUX_SERVER_AUTH_TOKEN;
+const AUTH_TOKEN = rawAuthToken?.trim() ? rawAuthToken.trim() : undefined;
 
 class HttpIpcMainAdapter {
   private handlers = new Map<string, (event: unknown, ...args: unknown[]) => Promise<unknown>>();