show build ID on logo (debug info)

server.js

@@ -42,6 +42,19 @@ console.log("process.env.DATABASE_URL = ", process.env.DATABASE_URL);
 console.log("process.env.DATABASE = ", process.env.DATABASE);
 console.log("process.env.APPLE_APP_ID = ", process.env.APPLE_APP_ID);
 
+
+// update GIT_COMMIT_ID
+const { exec } = require("child_process");
+exec("git rev-parse HEAD", (error, stdout, stderr) => {
+  if (error) {
+    console.error(`exec error: ${error}`);
+    process.env.GIT_COMMIT_ID = "unknown";
+    return;
+  }
+  process.env.GIT_COMMIT_ID = stdout.trim();
+  console.log("GIT_COMMIT_ID = ", process.env.GIT_COMMIT_ID);
+});
+
 //require('module-alias/register');
 
 //import helpers